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Re: X session turns white after display is turned back on


On 06/03/2011 14:06, Natarajan Murugaiyan wrote:
> I am using cygwin on a Dell windows 7 laptop, running X windows
> through startx command with fvwm2 window manager.
> 
> The laptop display gets turned off after a period of inactivity. When
> I log back in, the X
> session and all clients inside  it are white. I have no problems with
> the X session prior
> to when display got turned off.
> 
> 
> tail of /var/log/Xwin/XWin.0.log:
>     [ 19432.919] winClipboardProc - XOpenDisplay () returned and
> successfully opened the display.
>     [ 19506.037] winWindowProc - WM_DISPLAYCHANGE - new width: 0 new
> height: 0 new bpp: 0
>     [ 19603.148] winWindowProc - WM_DISPLAYCHANGE - new width: 0 new
> height: 0 new bpp: 0
>     [ 19682.599] winWindowProc - WM_DISPLAYCHANGE - new width: 0 new
> height: 0 new bpp: 0
>     [ 19682.599] winCreatePrimarySurfaceShadowDDNL - Could not create
> primary surface: 8876024e

This is DDERR_UNSUPPORTEDMODE, which doesn't make a great deal of sense.

I'd suggest the first thing you try is updating the Windows display drivers.

> Ran cygwin setup to update laptop to latest version of cygwin. Problem
> is present after cygwin update.

-- 
Jon TURNEY
Volunteer Cygwin/X X Server maintainer

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