To add some additional information, I am having the font rendering issue 
when connecting my X session to a remote CentOS 6.4 machine. I cannot 
duplicate the issue when running applications locally through Cygwin.

I'm having some trouble narrowing this down but here are the results of 
my tests:

Remote X font rendering changed:
gedit 2.28.4 (Consolas)
gedit 2.28.4 (DejaVu Sans Mono)
Eclipse 4.2 (Consolas)
gtk-demo (GTK2)

Local font rendering unchanged:
gedit 3.6.2 (Consolas)
gtk3-widget-factory
gtk-demo (GTK2)

 > Are you sure this odd rendering appears on all applications, and
 > isn't tied to a particular toolkit (Qt, gtk, etc. )?

I don't have any good candidates to test this with, as I'm only familiar 
with gtk applications.

Attached are the results from xdpyinfo.



On 6/11/2013 2:03 PM, Jon TURNEY wrote:
> On 11/06/2013 08:14, Matt D. wrote:
>> When running applications with a full-screen or -rootless X session, fonts
>> look fine. But when running the same application using the -multiwindow
>> switch, fonts are rendered oddly and are difficult to read.
>>
>> Here are some examples:
>>
>> Correct (full screen or rootless):
>> http://codespunk.com/files/upload/x_font.png
>>
>> Incorrect (multiwindow):
>> http://codespunk.com/files/upload/x_font_mw.png
>>
>> I prefer running as multiwindow because each application has its own unique
>> window for focus. In rootless mode all of the X windows come to the front when
>> one is selected.
>>
>> Does anyone know why fonts are rendering differently? Can this be fixed?
>
> Thanks for reporting this issue.
>
> This is pretty odd.  I have no idea what the cause is.
>
> Are you sure this odd rendering appears on all applications, and isn't tied to
> a particular toolkit (Qt, gtk, etc. )?
>
> You might start by looking at the dimensions and dpi details for "screen #0"
> reported by xdpyinfo, and see if there is a difference between these two modes.
>