Fw: When scrolling through history in cygwin terminal window line gets garbled

Fw: When scrolling through history in cygwin terminal window line gets garbled

[surendar jeyadev via cygwin]

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I am having a similar issue to that pictorially shown here:

    
https://unix.stackexchange.com/questions/344502/when-scrolling-through-history-in-cygwin-terminal-window-line-gets-garbled


This is new to me as I have been using Cygwin on a Windows 7

machine for several years without encountering this problem. 

(Of course, that Cygwin build was from 5 or 6 years back.)
I just moved to a Windows 10 machine and installed Cygwin from 
scratch a couple of days back and ran into the issue.

Using the UP arrow to go up the history list, I have no problem till I
hit a long command (in the case shown below the problematic 
command was about 50 characters long). When going one step
further up the history list, the leading characters of the long
command stay on the command line. I cannot backspace/delete
them.

I am using mintty from the standard distribution. 

Specific example. I issue a 'history' command to show the 

history and then use the UP arrow key to scroll upwards. After 6
Ups, I reach command no. 33 as shown below.

================================
sita 41 $  history
    2  vi .bash_profile
    3  quit
    4  eixt
    5  exit
    6  histoyr
    7  history
    8  vi .bash_profile
    9  vi .bash_profile
   10  exit
   11  history
   12  cd /usr/share
   13  ls
   14  cd
   15  history
   16  exit
   17  history
   18  history
   19  exit
   20  sdafasfas
   21  history
   22  cp /usr/share/vim/vim*/vimrc_example.vim ~/.vimrc
   23  history
   24  cp /usr/share/vim/vim*/vimrc_example.vim ~/.vimrc
   25  history
   26  ls
   27  cd
   28  vi .bash_profile
   29  exit
   30  history
   31  exit
   32  cygcheck -s -v -r > cygcheck.out
   33  history
   34  history
   35  ls
   36  cd
   37  pwd
   38  ls
   39  history
   40  exit
   41  history
sita 42 $  history
================================

Now I move up one more step an get 

================================
....
....
30  history
   31  exit
   32  cygcheck -s -v -r > cygcheck.out
   33  history
   34  history
   35  ls
   36  cd
   37  pwd
   38  ls
   39  history
   40  exit
   41  history
sita 42 $  cygcheck -s -v -r > cygcheck.out
================================

which is just what is expected. One more and we get

================================
   31  exit
   32  cygcheck -s -v -r > cygcheck.out
   33  history
   34  history
   35  ls
   36  cd
   37  pwd
   38  ls
   39  history
   40  exit
   41  history
sita 42 $  cygcheckexit
================================

Command 31 (exit) now has the extra characters
pre-pending the entry on the history list.

Hitting a return here executes the 'exit', though.
This seems to work for other commands. It appears
as though the characters have no effect. But,
they do cause a bit of confusion!

Also I noticed that if I input a really long string for a command, the characters
that should be in a new line over write the leading characters of the command --
that is, there is no line feed when the text wraps around.

Would greatly appreciate any help in fixing this.

The 'cygcheck' output is attached.

If you need any further information about the 
mintty set up, please let me know.

tia.

[-- Attachment #2: cygcheck.out --]
[-- Type: application/octet-stream, Size: 13720 bytes --]


Cygwin Configuration Diagnostics
Current System Time: Wed Aug 15 00:21:31 2018

Windows 10 Professional Ver 10.0 Build 17134 

Path:	C:\cygwin64\usr\local\bin
	C:\cygwin64\bin
	C:\Windows\system32
	C:\Windows
	C:\Windows\System32\Wbem
	C:\Windows\System32\WindowsPowerShell\v1.0
	C:\Windows\System32\OpenSSH
	C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static
	C:\Program Files (x86)\Windows Live\Shared
	C:\Users\user\AppData\Local\Microsoft\WindowsApps

Output from C:\cygwin64\bin\id.exe
UID: 197609(user)              GID: 197121(None)
197121(None)                   545(Users)
4(INTERACTIVE)                 66049(CONSOLE LOGON)
11(Authenticated Users)        15(This Organization)
113(Local account)             66048(LOCAL)
262154(NTLM Authentication)    401408(Medium Mandatory Level)

SysDir: C:\Windows\system32
WinDir: C:\Windows

USER = 'user'
PWD = '/home/user'
HOME = '/home/user'

USERDOMAIN = 'SITA'
OS = 'Windows_NT'
COMMONPROGRAMFILES = 'C:\Program Files\Common Files'
PROCESSOR_LEVEL = '6'
PSModulePath = 'C:\Program Files\WindowsPowerShell\Modules;C:\Windows\system32\WindowsPowerShell\v1.0\Modules'
CommonProgramW6432 = 'C:\Program Files\Common Files'
CommonProgramFiles(x86) = 'C:\Program Files (x86)\Common Files'
LANG = 'en_US.UTF-8'
TZ = 'America/New_York'
HOSTNAME = 'sita'
PUBLIC = 'C:\Users\Public'
OLDPWD = '/cygdrive/c/Users/user/Desktop'
USERNAME = 'user'
LOGONSERVER = '\\SITA'
PROCESSOR_ARCHITECTURE = 'AMD64'
LOCALAPPDATA = 'C:\Users\user\AppData\Local'
COMPUTERNAME = 'SITA'
FPS_BROWSER_APP_PROFILE_STRING = 'Internet Explorer'
!:: = '::\'
SYSTEMDRIVE = 'C:'
USERPROFILE = 'C:\Users\user'
PATHEXT = '.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC'
SYSTEMROOT = 'C:\Windows'
USERDOMAIN_ROAMINGPROFILE = 'SITA'
PROCESSOR_IDENTIFIER = 'Intel64 Family 6 Model 158 Stepping 10, GenuineIntel'
TMP = '/tmp'
OneDrive = 'C:\Users\user\OneDrive'
PROCESSOR_REVISION = '9e0a'
FPS_BROWSER_USER_PROFILE_STRING = 'Default'
PROFILEREAD = 'true'
NUMBER_OF_PROCESSORS = '6'
ProgramW6432 = 'C:\Program Files'
COMSPEC = 'C:\Windows\system32\cmd.exe'
APPDATA = 'C:\Users\user\AppData\Roaming'
SHELL = '/bin/bash'
TERM = 'xterm'
WINDIR = 'C:\Windows'
ProgramData = 'C:\ProgramData'
SHLVL = '1'
PRINTER = 'LBP7110Cw'
PROGRAMFILES = 'C:\Program Files'
ALLUSERSPROFILE = 'C:\ProgramData'
TEMP = '/tmp'
DriverData = 'C:\Windows\System32\Drivers\DriverData'
SESSIONNAME = 'Console'
ProgramFiles(x86) = 'C:\Program Files (x86)'
PS1 = '\e[0;32m\]\h \! $ \[\e[0m\] '
HOMEDRIVE = 'C:'
INFOPATH = '/usr/local/info:/usr/share/info:/usr/info'
HOMEPATH = '\Users\user'
ORIGINAL_PATH = '/cygdrive/c/Windows/system32:/cygdrive/c/Windows:/cygdrive/c/Windows/System32/Wbem:/cygdrive/c/Windows/System32/WindowsPowerShell/v1.0:/cygdrive/c/Windows/System32/OpenSSH:/cygdrive/c/Program Files (x86)/ATI Technologies/ATI.ACE/Core-Static:/cygdrive/c/Program Files (x86)/Windows Live/Shared:/cygdrive/c/Users/user/AppData/Local/Microsoft/WindowsApps'
EXECIGNORE = '*.dll'
_ = '/usr/bin/cygcheck'

HKEY_CURRENT_USER\Software\Cygwin
HKEY_CURRENT_USER\Software\Cygwin\Installations
  (default) = '\??\C:\cygwin64'
HKEY_LOCAL_MACHINE\SOFTWARE\Cygwin
HKEY_LOCAL_MACHINE\SOFTWARE\Cygwin\Installations
  (default) = '\??\C:\cygwin64'
HKEY_LOCAL_MACHINE\SOFTWARE\Cygwin\setup
  (default) = 'C:\cygwin64'

obcaseinsensitive set to 1

Cygwin installations found in the registry:
  System: Key: e022582115c10879 Path: C:\cygwin64
  User:   Key: e022582115c10879 Path: C:\cygwin64

c:  hd  NTFS    953141Mb  10% CP CS UN PA FC     EN
d:  fd             N/A    N/A                      
e:  cd             N/A    N/A                      
f:  fd             N/A    N/A                      
g:  fd             N/A    N/A                      
h:  fd             N/A    N/A                      
i:  hd  NTFS    114470Mb  64% CP CS UN PA FC     EN

C:\cygwin64      /          system  binary,auto
C:\cygwin64\bin  /usr/bin   system  binary,auto
C:\cygwin64\lib  /usr/lib   system  binary,auto
cygdrive prefix  /cygdrive  user    binary,posix=0,auto

Found: C:\cygwin64\bin\awk
 -> C:\cygwin64\bin\gawk.exe
Found: C:\cygwin64\bin\bash.exe
Found: C:\cygwin64\bin\cat.exe
Found: C:\cygwin64\bin\cp.exe
Not Found: cpp (good!)
Not Found: crontab
Found: C:\cygwin64\bin\find.exe
Found: C:\Windows\system32\find.exe
Warning: C:\cygwin64\bin\find.exe hides C:\Windows\system32\find.exe
Not Found: gcc
Not Found: gdb
Found: C:\cygwin64\bin\grep.exe
Found: C:\cygwin64\bin\kill.exe
Not Found: ld
Found: C:\cygwin64\bin\ls.exe
Not Found: make
Found: C:\cygwin64\bin\mv.exe
Not Found: patch
Not Found: perl
Found: C:\cygwin64\bin\rm.exe
Found: C:\cygwin64\bin\sed.exe
Found: C:\Windows\System32\OpenSSH\ssh.exe
Found: C:\cygwin64\bin\sh.exe
Found: C:\cygwin64\bin\tar.exe
Found: C:\Windows\system32\tar.exe
Warning: C:\cygwin64\bin\tar.exe hides C:\Windows\system32\tar.exe
Found: C:\cygwin64\bin\test.exe
Found: C:\cygwin64\bin\vi.exe
Not Found: vim

   39k 2016/09/19 C:\cygwin64\bin\cygargp-0.dll - os=4.0 img=0.0 sys=5.2
                  "cygargp-0.dll" v0.0 ts=2016-09-19 02:13
   16k 2013/03/26 C:\cygwin64\bin\cygattr-1.dll - os=4.0 img=0.0 sys=5.2
                  "cygattr-1.dll" v0.0 ts=2013-03-26 18:26
  180k 2015/03/23 C:\cygwin64\bin\cygblkid-1.dll - os=4.0 img=0.0 sys=5.2
                  "cygblkid-1.dll" v0.0 ts=2015-03-23 09:46
   64k 2017/02/22 C:\cygwin64\bin\cygbz2-1.dll - os=4.0 img=0.0 sys=5.2
                  "cygbz2-1.dll" v0.0 ts=2017-02-22 07:22
 2273k 2018/04/03 C:\cygwin64\bin\cygcrypto-1.0.0.dll - os=4.0 img=0.0 sys=5.2
                  "cygcrypto-1.0.0.dll" v0.0 ts=2018-04-03 11:56
   27k 2015/11/17 C:\cygwin64\bin\cygffi-6.dll - os=4.0 img=0.0 sys=5.2
                  "cygffi-6.dll" v0.0 ts=2015-11-17 22:14
   65k 2017/12/05 C:\cygwin64\bin\cygformw-10.dll - os=4.0 img=0.0 sys=5.2
                  "cygformw-10.dll" v0.0 ts=2017-12-05 08:15
   70k 2018/06/26 C:\cygwin64\bin\cyggcc_s-seh-1.dll - os=4.0 img=0.0 sys=5.2
                  "cyggcc_s-seh-1.dll" v0.0 ts=2018-06-26 17:17
   39k 2016/10/10 C:\cygwin64\bin\cyggdbm-4.dll - os=4.0 img=0.0 sys=5.2
                  "cyggdbm-4.dll" v0.0 ts=2016-10-10 09:26
   13k 2016/10/10 C:\cygwin64\bin\cyggdbm_compat-4.dll - os=4.0 img=0.0 sys=5.2
                  "cyggdbm_compat-4.dll" v0.0 ts=2016-10-10 09:26
  527k 2017/01/21 C:\cygwin64\bin\cyggmp-10.dll - os=4.0 img=0.0 sys=5.2
                  "cyggmp-10.dll" v0.0 ts=2017-01-21 18:25
   33k 2017/02/13 C:\cygwin64\bin\cyghistory7.dll - os=4.0 img=0.0 sys=5.2
                  "cyghistory7.dll" v0.0 ts=2017-02-11 22:39
 1009k 2015/02/20 C:\cygwin64\bin\cygiconv-2.dll - os=4.0 img=0.0 sys=5.2
                  "cygiconv-2.dll" v0.0 ts=2015-02-20 17:07
   42k 2016/10/23 C:\cygwin64\bin\cygintl-8.dll - os=4.0 img=0.0 sys=5.2
                  "cygintl-8.dll" v0.0 ts=2016-10-23 07:17
    6k 2018/02/02 C:\cygwin64\bin\cyglsa64.dll - os=4.0 img=0.0 sys=5.2
                  "cyglsa64.dll" v0.0 ts=2018-02-02 14:16
  139k 2017/05/10 C:\cygwin64\bin\cyglzma-5.dll - os=4.0 img=0.0 sys=5.2
                  "cyglzma-5.dll" v0.0 ts=2017-05-10 01:17
  125k 2018/03/18 C:\cygwin64\bin\cygmagic-1.dll - os=4.0 img=0.0 sys=5.2
                  "cygmagic-1.dll" v0.0 ts=2018-03-18 15:17
  168k 2018/01/23 C:\cygwin64\bin\cygman-2-7-6-1.dll - os=4.0 img=0.0 sys=5.2
                  "cygman-2-7-6-1.dll" v0.0 ts=2018-01-23 20:22
   22k 2018/01/23 C:\cygwin64\bin\cygmandb-2-7-6-1.dll - os=4.0 img=0.0 sys=5.2
                  "cygmandb-2-7-6-1.dll" v0.0 ts=2018-01-23 20:22
   33k 2017/12/05 C:\cygwin64\bin\cygmenuw-10.dll - os=4.0 img=0.0 sys=5.2
                  "cygmenuw-10.dll" v0.0 ts=2017-12-05 08:15
  432k 2018/07/28 C:\cygwin64\bin\cygmpfr-6.dll - os=4.0 img=0.0 sys=5.2
                  "cygmpfr-6.dll" v0.0 ts=2018-07-28 20:18
  317k 2017/12/05 C:\cygwin64\bin\cygncursesw-10.dll - os=4.0 img=0.0 sys=5.2
                  "cygncursesw-10.dll" v0.0 ts=2017-12-05 08:13
 1019k 2018/04/09 C:\cygwin64\bin\cygp11-kit-0.dll - os=4.0 img=0.0 sys=5.2
                  "cygp11-kit-0.dll" v0.0 ts=2018-04-09 01:55
   15k 2017/12/05 C:\cygwin64\bin\cygpanelw-10.dll - os=4.0 img=0.0 sys=5.2
                  "cygpanelw-10.dll" v0.0 ts=2017-12-05 08:14
  475k 2017/04/23 C:\cygwin64\bin\cygpcre-1.dll - os=4.0 img=0.0 sys=5.2
                  "cygpcre-1.dll" v0.0 ts=2017-04-24 00:50
   39k 2015/04/09 C:\cygwin64\bin\cygpipeline-1.dll - os=4.0 img=0.0 sys=5.2
                  "cygpipeline-1.dll" v0.0 ts=2015-04-09 21:04
   41k 2016/07/13 C:\cygwin64\bin\cygpopt-0.dll - os=4.0 img=0.0 sys=5.2
                  "cygpopt-0.dll" v0.0 ts=2016-07-13 06:16
  219k 2017/02/13 C:\cygwin64\bin\cygreadline7.dll - os=4.0 img=0.0 sys=5.2
                  "cygreadline7.dll" v0.0 ts=2017-02-11 22:39
   11k 2015/07/17 C:\cygwin64\bin\cygsigsegv-2.dll - os=4.0 img=0.0 sys=5.2
                  "cygsigsegv-2.dll" v0.0 ts=2015-07-17 22:35
   89k 2015/03/23 C:\cygwin64\bin\cygsmartcols-1.dll - os=4.0 img=0.0 sys=5.2
                  "cygsmartcols-1.dll" v0.0 ts=2015-03-23 09:46
  403k 2018/04/03 C:\cygwin64\bin\cygssl-1.0.0.dll - os=4.0 img=0.0 sys=5.2
                  "cygssl-1.0.0.dll" v0.0 ts=2018-04-03 11:56
 1394k 2018/06/26 C:\cygwin64\bin\cygstdc++-6.dll - os=4.0 img=0.0 sys=5.2
                  "cygstdc++-6.dll" v0.0 ts=2018-06-26 17:34
   67k 2018/03/19 C:\cygwin64\bin\cygtasn1-6.dll - os=4.0 img=0.0 sys=5.2
                  "cygtasn1-6.dll" v0.0 ts=2018-03-19 21:41
   58k 2017/12/05 C:\cygwin64\bin\cygticw-10.dll - os=4.0 img=0.0 sys=5.2
                  "cygticw-10.dll" v0.0 ts=2017-12-05 08:13
   15k 2015/03/23 C:\cygwin64\bin\cyguuid-1.dll - os=4.0 img=0.0 sys=5.2
                  "cyguuid-1.dll" v0.0 ts=2015-03-23 09:46
   83k 2017/03/03 C:\cygwin64\bin\cygz.dll - os=4.0 img=0.0 sys=5.2
                  "cygz.dll" v0.0 ts=2017-03-03 21:42
 3121k 2018/02/02 C:\cygwin64\bin\cygwin1.dll - os=4.0 img=0.0 sys=5.2
                  "cygwin1.dll" v0.0 ts=2018-02-02 14:16
    Cygwin DLL version info:
        DLL version: 2.10.0
        DLL epoch: 19
        DLL old termios: 5
        DLL malloc env: 28
        Cygwin conv: 181
        API major: 0
        API minor: 325
        Shared data: 5
        DLL identifier: cygwin1
        Mount registry: 3
        Cygwin registry name: Cygwin
        Installations name: Installations
        Cygdrive default prefix: 
        Build date: 
        Shared id: cygwin1S5


Can't find the cygrunsrv utility, skipping services check.


Cygwin Package Information
Last downloaded files to: C:\Users\user\Desktop\Software\Cygwin
Last downloaded files from: http://mirror.rit.edu/cygwin/

Package              Version             Status
_autorebase          001007-1            OK
alternatives         1.3.30c-10          OK
base-cygwin          3.8-1               OK
base-files           4.2-4               OK
bash                 4.4.12-3            OK
bzip2                1.0.6-3             OK
ca-certificates      2.22-1              OK
coreutils            8.26-2              OK
cygutils             1.4.16-2            OK
cygwin               2.10.0-1            OK
dash                 0.5.9.1-1           OK
diffutils            3.5-2               OK
editrights           1.03-1              OK
file                 5.32-1              OK
findutils            4.6.0-1             OK
gawk                 4.2.1-1             OK
getent               2.18.90-4           OK
grep                 3.0-2               OK
groff                1.22.3-1            OK
gzip                 1.8-1               OK
hostname             3.13-1              OK
info                 6.5-2               OK
ipc-utils            1.0-2               OK
less                 530-1               OK
libargp              20110921-3          OK
libattr1             2.4.46-1            OK
libblkid1            2.25.2-2            OK
libbz2_1             1.0.6-3             OK
libffi6              3.2.1-2             OK
libgcc1              7.3.0-3             OK
libgdbm4             1.12-1              OK
libgmp10             6.1.2-1             OK
libiconv             1.14-3              OK
libiconv2            1.14-3              OK
libintl8             0.19.8.1-2          OK
liblzma5             5.2.3-1             OK
libmpfr6             4.0.1-4p11          OK
libncursesw10        6.0-12.20171125     OK
libopenssl100        1.0.2o-1            OK
libp11-kit0          0.23.10-1           OK
libpcre1             8.40-3              OK
libpipeline1         1.4.0-1             OK
libpopt-common       1.16-2              OK
libpopt0             1.16-2              OK
libreadline7         7.0.3-3             OK
libsigsegv2          2.10-2              OK
libsmartcols1        2.25.2-2            OK
libstdc++6           7.3.0-3             OK
libtasn1_6           4.13-1              OK
libuuid1             2.25.2-2            OK
login                1.12-1              OK
man-db               2.7.6.1-1           OK
mintty               2.9.0-0             OK
ncurses              6.0-12.20171125     OK
openssl              1.0.2o-1            OK
p11-kit              0.23.10-1           OK
p11-kit-trust        0.23.10-1           OK
rebase               4.4.4-1             OK
run                  1.3.4-2             OK
sed                  4.4-1               OK
tar                  1.29-1              OK
terminfo             6.0-12.20171125     OK
tzcode               2018e-1             OK
tzdata               2018e-1             OK
util-linux           2.25.2-2            OK
vim-minimal          8.0.1567-1          OK
which                2.20-2              OK
xz                   5.2.3-1             OK
zlib0                1.2.11-1            OK
Use -h to see help about each section

[-- Attachment #3: Type: text/plain, Size: 219 bytes --]


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Re: Fw: When scrolling through history in cygwin terminal window line gets garbled

[Thomas Wolff]

Am 17.08.2018 um 15:36 schrieb surendar jeyadev via cygwin:
> I am having a similar issue to that pictorially shown here:
>
>      
> https://unix.stackexchange.com/questions/344502/when-scrolling-through-history-in-cygwin-terminal-window-line-gets-garbled
>
>
> This is new to me as I have been using Cygwin on a Windows 7
>
> machine for several years without encountering this problem.
>
> (Of course, that Cygwin build was from 5 or 6 years back.)
> I just moved to a Windows 10 machine and installed Cygwin from scratch a couple of days back and ran into the issue.
>
> Using the UP arrow to go up the history list, I have no problem till I hit a long command (in the case shown below the problematic command was about 50 characters long). When going one step further up the history list, the leading characters of the long command stay on the command line. I cannot backspace/delete them.
>
> I am using mintty from the standard distribution.
>
> Specific example. I issue a 'history' command to show the
>
> history and then use the UP arrow key to scroll upwards. After 6 Ups, I reach command no. 33 as shown below.
>
> ================================
> sita 41 $  history
>      2  vi .bash_profile
>      3  quit
>      4  eixt
>      5  exit
>      6  histoyr
>      7  history
>      8  vi .bash_profile
>      9  vi .bash_profile
>     10  exit
>     11  history
>     12  cd /usr/share
>     13  ls
>     14  cd
>     15  history
>     16  exit
>     17  history
>     18  history
>     19  exit
>     20  sdafasfas
>     21  history
>     22  cp /usr/share/vim/vim*/vimrc_example.vim ~/.vimrc
>     23  history
>     24  cp /usr/share/vim/vim*/vimrc_example.vim ~/.vimrc
>     25  history
>     26  ls
>     27  cd
>     28  vi .bash_profile
>     29  exit
>     30  history
>     31  exit
>     32  cygcheck -s -v -r > cygcheck.out
>     33  history
>     34  history
>     35  ls
>     36  cd
>     37  pwd
>     38  ls
>     39  history
>     40  exit
>     41  history
> sita 42 $  history
> ================================
>
> Now I move up one more step an get
>
> ================================
> ....
> ....
> 30  history
>     31  exit
>     32  cygcheck -s -v -r > cygcheck.out
>     33  history
>     34  history
>     35  ls
>     36  cd
>     37  pwd
>     38  ls
>     39  history
>     40  exit
>     41  history
> sita 42 $  cygcheck -s -v -r > cygcheck.out
> ================================
>
> which is just what is expected. One more and we get
>
> ================================
>     31  exit
>     32  cygcheck -s -v -r > cygcheck.out
>     33  history
>     34  history
>     35  ls
>     36  cd
>     37  pwd
>     38  ls
>     39  history
>     40  exit
>     41  history
> sita 42 $  cygcheckexit
> ================================
>
> Command 31 (exit) now has the extra characters pre-pending the entry on the history list.
>
> Hitting a return here executes the 'exit', though.
> This seems to work for other commands. It appears as though the characters have no effect. But, they do cause a bit of confusion!
>
> Also I noticed that if I input a really long string for a command, the characters that should be in a new line over write the leading characters of the command -- that is, there is no line feed when the text wraps around.
>
> Would greatly appreciate any help in fixing this.
>
> The 'cygcheck' output is attached.
>
> If you need any further information about the mintty set up, please let me know.
>
> tia.
Please test the following:
* Set you prompt to some basic string, e.g. PS1=%. Does that change 
anything?
* Mintty 2.7.5 changed the default wraparound behaviour to become 
compatible with the xterm default. With setting -o OldWrapModes=true, 
does that change anything?
* Can you cross-test this in xterm?
* Does it happen in a freshly-started mintty? If it only happens later, 
which programs did you run in the meantime?
* Make a screen log demonstrating a minimal test case, please.

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Re: scrolling through history in cygwin terminal window line gets garbled

[Steven Penny]

On Fri, 17 Aug 2018 16:36:57, Thomas Wolff wrote:
> Please test the following:
> * Set you prompt to some basic string, e.g. PS1=%. Does that change 
> anything?
> * Mintty 2.7.5 changed the default wraparound behaviour to become 
> compatible with the xterm default. With setting -o OldWrapModes=true, 
> does that change anything?
> * Can you cross-test this in xterm?
> * Does it happen in a freshly-started mintty? If it only happens later, 
> which programs did you run in the meantime?
> * Make a screen log demonstrating a minimal test case, please.

This bug has bothered me for years, I would love to see it fixed. Here is a
simple test case:

    $ cat ~/.bash_history
    echo ABCDEF ABCDEF ABCDEF ABCDEF
    echo 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789

Result:

    $ echo ABCDEF ABCDEF ABCDEF ABCDEF        234

What I tried:

1. PS1=%
2. "TERM" with no "am" or "bw"
3. "TERM" with both "am" and "bw"
4. "TERM" with "am" only (couldnt find one with "bw" only)

If you have a custom terminal that this works with - provide the "infocmp"
output and I will try it. Note that I am not using Mintty, I am just using
sh.exe and conhost.exe, so it seems that mintty is not the culprit but perhaps
Cygwin DLL or Readline.


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Re: scrolling through history in cygwin terminal window line gets garbled

[cyg Simple]

On 8/17/2018 9:18 PM, Steven Penny wrote:
> On Fri, 17 Aug 2018 16:36:57, Thomas Wolff wrote:
>> Please test the following:
>> * Set you prompt to some basic string, e.g. PS1=%. Does that change
>> anything?
>> * Mintty 2.7.5 changed the default wraparound behaviour to become
>> compatible with the xterm default. With setting -o OldWrapModes=true,
>> does that change anything?
>> * Can you cross-test this in xterm?
>> * Does it happen in a freshly-started mintty? If it only happens
>> later, which programs did you run in the meantime?
>> * Make a screen log demonstrating a minimal test case, please.
> 
> This bug has bothered me for years, I would love to see it fixed. Here is a
> simple test case:
> 
>    $ cat ~/.bash_history
>    echo ABCDEF ABCDEF ABCDEF ABCDEF
>    echo 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789
> 
> Result:
> 
>    $ echo ABCDEF ABCDEF ABCDEF ABCDEF        234
> 
> What I tried:
> 
> 1. PS1=%
> 2. "TERM" with no "am" or "bw"
> 3. "TERM" with both "am" and "bw"
> 4. "TERM" with "am" only (couldnt find one with "bw" only)
> 
> If you have a custom terminal that this works with - provide the "infocmp"
> output and I will try it. Note that I am not using Mintty, I am just using
> sh.exe and conhost.exe, so it seems that mintty is not the culprit but
> perhaps
> Cygwin DLL or Readline.
> 

Sorry, I can't duplicate this.  I even tried with conhost and bash -il
in the window and just don't see an issue. My TERM value is xterm and
the data comes from the file /usr/share/terminfo/78/xterm.

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Re: scrolling through history in cygwin terminal window line gets garbled

[Steven Penny]

On Fri, 17 Aug 2018 23:47:33, cyg Simple wrote:
> Sorry, I can't duplicate this.  I even tried with conhost and bash -il
> in the window and just don't see an issue. My TERM value is xterm and
> the data comes from the file /usr/share/terminfo/78/xterm.

You comment concerned me - so i just tested this again

this time on a pristine virtual machine - windows 7

same issue - note i am launching via "Cygwin.bat"

thanks


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Re: scrolling through history in cygwin terminal window line gets garbled

[cyg Simple]

On 8/18/2018 11:23 AM, Steven Penny wrote:
> On Fri, 17 Aug 2018 23:47:33, cyg Simple wrote:
>> Sorry, I can't duplicate this.  I even tried with conhost and bash -il
>> in the window and just don't see an issue. My TERM value is xterm and
>> the data comes from the file /usr/share/terminfo/78/xterm.
> 
> You comment concerned me - so i just tested this again
> 
> this time on a pristine virtual machine - windows 7
> 
> same issue - note i am launching via "Cygwin.bat"
> 
> 

I'm using Win10 and typically the icon created by setup which starts
mintty directly as:

C:\cygwin64\bin\mintty.exe -i /Cygwin-Terminal.ico -

I started conhost from that session and then executed `bash -il' within
conhost.

So just for grins I went to the Windows Explorer and started with the
cygwin.bat file and performed your test again using the .bash_history
with no issues.  This time the TERM=cygwin which comes from
/usr/share/terminfo/63/cygwin.

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Re: scrolling through history in cygwin terminal window line gets garbled

[Steven Penny]

On Sat, 18 Aug 2018 16:17:49, cyg Simple wrote:
> I'm using Win10 and typically the icon created by setup which starts
> mintty directly as:
>
> C:\cygwin64\bin\mintty.exe -i /Cygwin-Terminal.ico -
>
> I started conhost from that session and then executed `bash -il' within
> conhost.

i said from the beginning that i wasnt using mintty - so im not sure why you
are testing with mintty

also you dont start conhost - its started automatically when you launch any
shell.

> So just for grins I went to the Windows Explorer and started with the
> cygwin.bat file and performed your test again using the .bash_history
> with no issues.  This time the TERM=cygwin which comes from
> /usr/share/terminfo/63/cygwin.

all i can say to this is that you arent using windows 7, so perhaps the newer
version of conhost has fixed the issue - at this point we would need another
windows 7 user to confirm the issue - further tests with win 10 wont be helpful.


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Re: scrolling through history in cygwin terminal window line gets garbled

[cyg Simple]

On 8/18/2018 6:20 PM, Steven Penny wrote:
> On Sat, 18 Aug 2018 16:17:49, cyg Simple wrote:
>> I'm using Win10 and typically the icon created by setup which starts
>> mintty directly as:
>>
>> C:\cygwin64\bin\mintty.exe -i /Cygwin-Terminal.ico -
>>
>> I started conhost from that session and then executed `bash -il' within
>> conhost.
> 
> i said from the beginning that i wasnt using mintty - so im not sure why
> you
> are testing with mintty
> 
> also you dont start conhost - its started automatically when you launch any
> shell.
> 

You should give that a try.  You can start with conhost and get a cmd
session.


>> So just for grins I went to the Windows Explorer and started with the
>> cygwin.bat file and performed your test again using the .bash_history
>> with no issues.  This time the TERM=cygwin which comes from
>> /usr/share/terminfo/63/cygwin.
> 
> all i can say to this is that you arent using windows 7, so perhaps the
> newer
> version of conhost has fixed the issue - at this point we would need
> another
> windows 7 user to confirm the issue - further tests with win 10 wont be
> helpful.

I agree if there are any.

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Re: scrolling through history in cygwin terminal window line gets garbled

[Steven Penny]

On Sat, 18 Aug 2018 20:47:31, cyg Simple wrote:
> You should give that a try.  You can start with conhost and get a cmd
> session.

it appears we have reached the bounds of your knowledge. trying to launch
conhost.exe on its own is a noop. if you double click the EXE, or you call it
from the run box, it will not show up in the task manager. if you ARE seeing it,
its because you have launched one of these:

- cmd.exe
- powershell.exe
- sh.exe

and *it* has called conhost.exe. perhaps you should actually try this before
commenting further.

> I agree if there are any.

hmm

http://netmarketshare.com/operating-system-market-share.aspx?id=platformsDesktopVersions


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Re: scrolling through history in cygwin terminal window line gets garbled

[cyg Simple]

On 8/18/2018 9:27 PM, Steven Penny wrote:
> On Sat, 18 Aug 2018 20:47:31, cyg Simple wrote:
>> You should give that a try.  You can start with conhost and get a cmd
>> session.
> 
> it appears we have reached the bounds of your knowledge. trying to launch
> conhost.exe on its own is a noop.

Maybe for you but not for me.

> if you double click the EXE, or you
> call it
> from the run box, it will not show up in the task manager. if you ARE
> seeing it,
> its because you have launched one of these:
> 
> - cmd.exe
> - powershell.exe
> - sh.exe
> 
> and *it* has called conhost.exe. perhaps you should actually try this
> before
> commenting further.
> 

No for me, again Win10, executing or clicking from File Explorer the
conhost.exe program will open a cmd.exe window.

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Re: scrolling through history in cygwin terminal window line gets garbled

[Thomas Wolff]

Am 19.08.2018 um 00:20 schrieb Steven Penny:
> On Sat, 18 Aug 2018 16:17:49, cyg Simple wrote:
>> I'm using Win10 and typically the icon created by setup which starts
>> mintty directly as:
>>
>> C:\cygwin64\bin\mintty.exe -i /Cygwin-Terminal.ico -
>>
>> I started conhost from that session and then executed `bash -il' within
>> conhost.
>
> i said from the beginning that i wasnt using mintty - so im not sure 
> why you are testing with mintty
You put "cygwin terminal" in the mail subject; so you're in fact using a 
"cygwin console".

>
> also you dont start conhost - its started automatically when you 
> launch any shell.
>
>> So just for grins I went to the Windows Explorer and started with the
>> cygwin.bat file and performed your test again using the .bash_history
>> with no issues.  This time the TERM=cygwin which comes from
>> /usr/share/terminfo/63/cygwin.
>
> all i can say to this is that you arent using windows 7, so perhaps 
> the newer
> version of conhost has fixed the issue - at this point we would need 
> another
> windows 7 user to confirm the issue - further tests with win 10 wont 
> be helpful.
Tested with Window 7 Ultimate, starting cmd.exe, then Cygwin.bat. This 
does not reproduce the issue for me.


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Re: scrolling through history in cygwin terminal window line gets garbled

[Steven Penny]

On Sun, 19 Aug 2018 12:16:57, Thomas Wolff wrote:
> Tested with Window 7 Ultimate, starting cmd.exe, then Cygwin.bat. This 
> does not reproduce the issue for me.

Here are the steps I used - note again I am testing this on a pristine virtual
machine:

1. Navigate to "C:\cygwin64" using Windows Explorer
http://i.redd.it/nj0agyjgg2h11.png

2. Double click "Cygwin.bat"
http://i.redd.it/tpyn4u9ig2h11.png

3. Close Cygwin
4. Navigate to "C:\cygwin64\home\John"
5. Move ".bash_history" to "C:\cygwin64\home\John"
http://i.redd.it/jyaeiyjjg2h11.png

6. Navigate to "C:\cygwin64"
7. Double click "Cygwin.bat"
8. Arrow up
http://i.redd.it/bb1t4twkg2h11.png

9. Arrow up
http://i.redd.it/nidg3v2og2h11.png

Note I tried this with Cygwin 2.10.0 and 2.11.0.


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Re: scrolling through history in cygwin terminal window line gets garbled

[Jeffrey Walton]

On Sat, Aug 18, 2018 at 6:20 PM, Steven Penny <svnpenn@gmail.com> wrote:
> On Sat, 18 Aug 2018 16:17:49, cyg Simple wrote:
>> ...
>> So just for grins I went to the Windows Explorer and started with the
>> cygwin.bat file and performed your test again using the .bash_history
>> with no issues.  This time the TERM=cygwin which comes from
>> /usr/share/terminfo/63/cygwin.
>
>
> all i can say to this is that you arent using windows 7, so perhaps the
> newer
> version of conhost has fixed the issue - at this point we would need another
> windows 7 user to confirm the issue - further tests with win 10 wont be
> helpful.

I was not able to reproduce on Windows 7 x86.

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Re: Fw: When scrolling through history in cygwin terminal window line gets garbled

[Andrey Repin]

Greetings, surendar jeyadev!

I can confirm this behavior.
Given the position of cut-off, it appears the problem is in wrong character
width to terminal position count translation.


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Sunday, August 19, 2018 12:31:43

Sorry for my terrible english...


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Re: Fw: When scrolling through history in cygwin terminal window line gets garbled

[Thomas Wolff]

Am 19.08.2018 um 11:47 schrieb Andrey Repin:
> Greetings, surendar jeyadev!
>
> I can confirm this behavior.
How did you reproduce it? I don't.

> Given the position of cut-off, it appears the problem is in wrong character
> width to terminal position count translation.
All the fuzzy test case descriptions in this thread so far were
ASCII-only, so I'm puzzled about your conclusion as I see no
double-width or combining characters involved.

Maybe someone could care to provide a *reproducible test case*.

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Re: Fw: When scrolling through history in cygwin terminal window line gets garbled

[Andrey Repin]

Greetings, Thomas Wolff!

>> I can confirm this behavior.
> How did you reproduce it? I don't.

Exactly as described.
Start Cygwin using cygwin.bat
Enter command
echo ABCDEF ABCDEF ABCDEF ABCDEF
Enter command
echo 6789 123456789 123456789 123456789 123456789 123456789 123456789
Tap twice to pull the first entered command from history.
Observe part of the second command remaining on the screen.

I tried playing with locale and chcp settings to no apparent effect.

>> Given the position of cut-off, it appears the problem is in wrong character
>> width to terminal position count translation.
> All the fuzzy test case descriptions in this thread so far were
> ASCII-only, so I'm puzzled about your conclusion as I see no
> double-width or combining characters involved.

> Maybe someone could care to provide a *reproducible test case*.

Try with Win7 or not "new" Win10 native console.


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Andrey Repin
Sunday, August 19, 2018 19:10:04

Sorry for my terrible english...


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Re: Fw: When scrolling through history in cygwin terminal window line gets garbled

[Csaba Raduly]

On Sun, Aug 19, 2018 at 6:31 PM, Andrey Repin  wrote:
> Greetings, Thomas Wolff!
>
>>> I can confirm this behavior.
>> How did you reproduce it? I don't.
>
> Exactly as described.
> Start Cygwin using cygwin.bat
> Enter command
> echo ABCDEF ABCDEF ABCDEF ABCDEF
> Enter command
> echo 6789 123456789 123456789 123456789 123456789 123456789 123456789
> Tap twice to pull the first entered command from history.
> Observe part of the second command remaining on the screen.

I couldn't reproduce this, neither with mintty, nor with cygwin.bat
(bash --login -i)
In both cases, the

Windows 7.

$ uname -a
CYGWIN_NT-6.1 assos 2.10.0(0.325/5/3) 2018-02-02 15:16 x86_64 Cygwin

Then I ran Cygwin update, and this happened:

https://imgur.com/FALke6H


Csaba
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Re: Fw: When scrolling through history in cygwin terminal window line gets garbled

[Marco Atzeri]

Am 19.08.2018 um 23:45 schrieb Csaba Raduly:
> On Sun, Aug 19, 2018 at 6:31 PM, Andrey Repin  wrote:
>> Greetings, Thomas Wolff!
>>
>>>> I can confirm this behavior.
>>> How did you reproduce it? I don't.
>>
>> Exactly as described.
>> Start Cygwin using cygwin.bat
>> Enter command
>> echo ABCDEF ABCDEF ABCDEF ABCDEF
>> Enter command
>> echo 6789 123456789 123456789 123456789 123456789 123456789 123456789
>> Tap twice to pull the first entered command from history.
>> Observe part of the second command remaining on the screen.
>
> I couldn't reproduce this, neither with mintty, nor with cygwin.bat
> (bash --login -i)
> In both cases, the
>
> Windows 7.
>
> $ uname -a
> CYGWIN_NT-6.1 assos 2.10.0(0.325/5/3) 2018-02-02 15:16 x86_64 Cygwin
>
> Then I ran Cygwin update, and this happened:
>
> https://imgur.com/FALke6H
>
>
> Csaba
>
what packages were updated ?

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