Cygwin clipboard flaky on Windows 7

Cygwin clipboard flaky on Windows 7

[Chris Stenton]

After 4 years I've just upgrade to version :-

CYGWIN_NT-6.1 mars 1.7.32(0.274/5/3) 2014-08-13 23:03 i686 Cygwin

I use the following batch file :-

run XWin :1 -clipboard -nodecoration -notrayicon -dpi 100  -query 
machine  -from xxx.xxx.xxx.xxx -once

on my windows 7 machine.

When X is first started and with one "windows notepad" open I can 
bi-directionally  cut and paste between the MS and X windows world. 
However, it seems  that if I have multiple MS windows open then I can't 
cut from MS windows and paste into the X world. It still works for X 
world to MS World.

Sadly I wrote over my old version which did not have this issue. Is 
there any fix for this?

Thanks

Chris

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RE: Cygwin clipboard flaky on Windows 7

[Nellis, Kenneth]

From: Chris Stenton
> 
> After 4 years I've just upgrade to version :-
> 
> CYGWIN_NT-6.1 mars 1.7.32(0.274/5/3) 2014-08-13 23:03 i686 Cygwin
> 
> I use the following batch file :-
> 
> run XWin :1 -clipboard -nodecoration -notrayicon -dpi 100  -query machine
> -from xxx.xxx.xxx.xxx -once
> 
> on my windows 7 machine.
> 
> When X is first started and with one "windows notepad" open I can bi-
> directionally  cut and paste between the MS and X windows world.
> However, it seems  that if I have multiple MS windows open then I can't
> cut from MS windows and paste into the X world. It still works for X world
> to MS World.
> 
> Sadly I wrote over my old version which did not have this issue. Is there
> any fix for this?
> 
> Thanks
> 
> Chris

This is interesting because just yesterday I was extensively copying
and pasting from a pair of Notepad windows into my Mintty/bash session
using getclip, and occasionally it would just paste in a single garbage
character. So, this is different from the OP in that X is not involved.

After seeing this post, I tried for nearly a half hour trying to
discern a repeatable pattern to exhibit this behavior, but failed.
Don't want to inject red herrings here, but I've only noticed this
with two Notepad windows open and copying alternately from either.
Also, it seems that selecting new notepad text, but neglecting to 
Ctrl+C may be somehow involved. Again, I've tried many combinations of 
this and have not been able to discern any pattern of when failure
occurs.

This one non-repeatable failure may be illustrative. Consider two
Notepad windows open, A and B, and a mintty/bash shell window open.
The following steps produced failure:

Select text from A, Ctrl-C, getclip (worked), select text from B,
Ctrl-C, getclip (worked), click somewhere in A to deselect text,
click somewhere in B to deselect text, getclip (failed!).

FWIW:

$ uname -srvmo
CYGWIN_NT-6.1 1.7.32(0.274/5/3) 2014-08-13 23:06 x86_64 Cygwin
$ /usr/lib/csih/winProductName
Microsoft Windows 7 Enterprise Edition, 64-bit Service Pack 1 (build 7601)
$ getclip --version
getclip is part of cygutils version 1.4.14
  Copy the Windows Clipboard to stdout

$ cygcheck -c cygutils
Cygwin Package Information
Package              Version        Status
cygutils             1.4.14-1       OK
$ cygcheck -c cygwin
Cygwin Package Information
Package              Version        Status
cygwin               1.7.32-1       OK
$

--Ken Nellis

RE: Cygwin clipboard flaky on Windows 7

[Nellis, Kenneth]

From: Nellis, Kenneth
> This is interesting because just yesterday I was extensively copying and
> pasting from a pair of Notepad windows into my Mintty/bash session using
> getclip, and occasionally it would just paste in a single garbage
> character. So, this is different from the OP in that X is not involved.
> 
> After seeing this post, I tried for nearly a half hour trying to discern a
> repeatable pattern to exhibit this behavior, but failed.
> Don't want to inject red herrings here, but I've only noticed this with
> two Notepad windows open and copying alternately from either.
> Also, it seems that selecting new notepad text, but neglecting to
> Ctrl+C may be somehow involved. Again, I've tried many combinations of
> this and have not been able to discern any pattern of when failure occurs.
> 
> This one non-repeatable failure may be illustrative. Consider two Notepad
> windows open, A and B, and a mintty/bash shell window open.
> The following steps produced failure:
> 
> Select text from A, Ctrl-C, getclip (worked), select text from B, Ctrl-C,
> getclip (worked), click somewhere in A to deselect text, click somewhere
> in B to deselect text, getclip (failed!).

I have a new theory on this, which may as well apply to the OP as well: PEBCAK.

After selecting text in Notepad and Ctrl-C copying, then clicking in the 
mintty window to refocus the keyboard to run getclip, perhaps slopping clicking 
caused Mintty's auto-copy-on-select feature to maybe capture an accidental
single-character selection, thus wiping out what was copied from Notepad.

I'll be more careful about clicking and post again if I can rule that out.

--Ken Nellis

Re: Cygwin clipboard flaky on Windows 7

[Doug Henderson]

On 17 October 2014 09:05, Nellis, Kenneth wrote:
> I'll be more careful about clicking and post again if I can rule that out.
> --Ken Nellis

After a lot of grief with programs that either eat or ignore the click
that focuses the window, and thus may or may not change the selection
and insert point, I try to click on the window frame or use Alt-Tab or
Win-Tab. This usually does not change the selection and caret
locations in either window, so the windows behave more predicably,
regardless of what they do with the first click.

-- 
Doug Henderson, Calgary, Alberta, Canada

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Re: Cygwin clipboard flaky on Windows 7

[Jon TURNEY]

On 17/10/2014 12:28, Chris Stenton wrote:
> When X is first started and with one "windows notepad" open I can
> bi-directionally  cut and paste between the MS and X windows world.
> However, it seems  that if I have multiple MS windows open then I can't
> cut from MS windows and paste into the X world. It still works for X
> world to MS World.

Thanks for reporting your problem.

I spent a little bit of time using X and 2 "windows notepad" windows 
trying to reproduce the problem, but I wasn't able to do so.

Do you have any other programs running when the problem occurs 
(particularly 'clipboard manager' programs)?

Can you attach a /var/log/xwin/XWin.0.log after you have seen the problem?

-- 
Jon TURNEY
Volunteer Cygwin/X X Server maintainer

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Re: Cygwin clipboard flaky on Windows 7

[Chris Stenton]

On 21/10/2014 13:15, Jon TURNEY wrote:
> On 17/10/2014 12:28, Chris Stenton wrote:
>> When X is first started and with one "windows notepad" open I can
>> bi-directionally  cut and paste between the MS and X windows world.
>> However, it seems  that if I have multiple MS windows open then I can't
>> cut from MS windows and paste into the X world. It still works for X
>> world to MS World.
>
> Thanks for reporting your problem.
>
> I spent a little bit of time using X and 2 "windows notepad" windows 
> trying to reproduce the problem, but I wasn't able to do so.
>
> Do you have any other programs running when the problem occurs 
> (particularly 'clipboard manager' programs)?
>
> Can you attach a /var/log/xwin/XWin.0.log after you have seen the 
> problem?
>

Hi,

I don't think I have any other clipboard manager progs running . But a 
lot of progs are started at login.

Here is the output from  XWin.1.log you can see the GetClipboardData is 
failing.


Chris

Welcome to the XWin X Server
Vendor: The Cygwin/X Project
Release: 1.16.1.0
OS: CYGWIN_NT-6.1 mars 1.7.32(0.274/5/3) 2014-08-13 23:03 i686
OS: Windows 7 Service Pack 1 [Windows NT 6.1 build 7601] (Win32)
Package: version 1.16.1-2 built 2014-10-08

XWin was started with the following command line:

/usr/bin/XWin :1 -clipboard -nodecoration -notrayicon -dpi 100
  -query xxxxxxxxx  -from xxxxxxxxxxxx -once

ddxProcessArgument - Initializing default screens
winInitializeScreenDefaults - primary monitor w 1280 h 1024
winInitializeScreenDefaults - native DPI x 96 y 96
[361495.266] (II) xorg.conf is not supported
[361495.266] (II) See http://x.cygwin.com/docs/faq/cygwin-x-faq.html for 
more
formation
[361495.266] LoadPreferences: /home/jacs/.XWinrc not found
[361495.266] LoadPreferences: Loading /etc/X11/system.XWinrc
[361495.266] LoadPreferences: Done parsing the configuration file...
[361495.266] winDetectSupportedEngines - DirectDraw4 installed, allowing 
Shado
DNL
[361495.282] winDetectSupportedEngines - Returning, supported engines 
00000015
[361495.282] winSetEngine - Using Shadow DirectDraw NonLocking
[361495.282] winScreenInit - Using Windows display depth of 32 bits per 
pixel
[361495.329] winFinishScreenInitFB - Masks: 00ff0000 0000ff00 000000ff
[361495.329] MIT-SHM extension disabled due to lack of kernel support
[361495.329] XFree86-Bigfont extension local-client optimization 
disabled due
  lack of shared memory support in the kernel
[361495.344] (EE) AIGLX: No native OpenGL in modes with a root window
[361495.376] (II) AIGLX: enabled GLX_EXT_texture_from_pixmap
[361495.376] (II) AIGLX: Loaded and initialized swrast
[361495.376] (II) GLX: Initialized DRISWRAST GL provider for screen 0
[361495.578] winPointerWarpCursor - Discarding first warp: 640 492
[361495.578] (--) 3 mouse buttons found
[361495.578] (--) Setting autorepeat to delay=500, rate=31
[361495.578] (--) Windows keyboard layout: "00000809" (00000809) "United 
Kingd
", type 4
[361495.578] (--) Found matching XKB configuration "English (United 
Kingdom)"
[361495.578] (--) Model = "pc105" Layout = "gb" Variant = "none" Options 
= "no
"
[361495.578] Rules = "base" Model = "pc105" Layout = "gb" Variant = 
"none" Opt
ns = "none"
[361495.688] winClipboardThreadProc - DISPLAY=:1.0
[361495.688] winProcEstablishConnection - winInitClipboard returned.
[361495.688] winClipboardProc - XOpenDisplay () returned and 
successfully open
  the display.
[361495.719] winClipboardIOErrorHandler!
[361495.719] winClipboardProc - setjmp returned for IO Error Handler.
[361496.733] winClipboardProc - trying to restart clipboard thread
[361496.733] winClipboardThreadProc - DISPLAY=:1.0
[361496.733] winClipboardProc - XOpenDisplay () returned and 
successfully open
  the display.
[361531.973] winClipboardFlushXEvents - SelectionRequest - 
GetClipboardData ()
ailed: 00000000
[361531.973] winClipboardFlushXEvents - SelectionRequest - 
GetClipboardData ()
ailed: 00000000
[361531.973] winClipboardFlushXEvents - SelectionRequest - 
GetClipboardData ()
ailed: 00000000
XWin.1.log (END)

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Cygwin clipboard flaky on Windows 7

[Chris Stenton]

Further to below. I find that after a reboot I can cut and paste 
bidirectionally  between the  MS 7 and X win worlds for MS word and 
notepad but once I start IE 11 then cuting from MS 7 world and pasting 
in the X world stops working. Sometimes quitting out of IE 11 allows the 
cut and paste to start working again.

Thanks

Chris


-------- Forwarded Message --------
Subject: 	Cygwin clipboard flaky on Windows 7
Date: 	Fri, 17 Oct 2014 12:28:14 +0100
From: 	Chris Stenton <chris@stenton.me.uk>
To: 	cygwin@cygwin.com



After 4 years I've just upgrade to version :-

CYGWIN_NT-6.1 mars 1.7.32(0.274/5/3) 2014-08-13 23:03 i686 Cygwin

I use the following batch file :-

run XWin :1 -clipboard -nodecoration -notrayicon -dpi 100  -query
machine  -from xxx.xxx.xxx.xxx -once

on my windows 7 machine.

When X is first started and with one "windows notepad" open I can
bi-directionally  cut and paste between the MS and X windows world.
However, it seems  that if I have multiple MS windows open then I can't
cut from MS windows and paste into the X world. It still works for X
world to MS World.

Sadly I wrote over my old version which did not have this issue. Is
there any fix for this?

Thanks

Chris




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