Red Hat Bugzilla – Bug 479721
Deselecting 'display window contents while resizing' causes display to blank
Last modified: 2009-12-18 02:35:32 EST
Description of problem:
On a fresh install of Fedora 10 x86_64 with KDE, I deselected the 'display window contents while resizing' option under system settings and applied.
The display changed immediately to a solid white display except for the outline of the window and the mouse pointer. The mouse pointer would still move around the screen, and changed to the resize pointer over the window border.
After using ctrl-alt-backspace to kill X and logging back in, the kde splash screen displays and then the display goes all black except for the mouse pointer. In this state, KDE is completely unusable.
Version-Release number of selected component (if applicable):
don't know yet
Steps to Reproduce:
1. In KDE, Go to system config --> window settings (?)
2. Deselect the "display window contents while resizing" option
Screen turns solid white.
System functions normally, and while resizing a window only the border of the window is displayed.
If anyone can tell me how to change this option back from a console I can try to reproduce it, until then, KDE is unusable on this system, as it only displays a blank screen.
What graphics hardware and driver?
NV driver on a Nvidia Geforce 7300 GS
Look in ~/.kde/share/config/kwinrc
and remove that line
In the meantime, looks, acts, smells like a driver bug, reassigning.
Thanks for the bug report. We have reviewed the information you have provided above, and there is some additional information we require that will be helpful in our diagnosis of this issue.
Please attach your X server config file (/etc/X11/xorg.conf, if available) and X server log file (/var/log/Xorg.*.log) to the bug report as individual uncompressed file attachments using the bugzilla file attachment link below.
Could you please also try to run without any /etc/X11/xorg.conf (if you have one) whatsoever and let X11 autodetect your display and video card? Attach to this bug /var/log/Xorg.0.log from this attempt as well, please.
We will review this issue again once you've had a chance to attach this information.
Thanks in advance.
Created attachment 328797 [details]
Xorg log file
This is now more strange. I tried changing the ResizeMode line in the kwinrc file to Opaque, and tried deleting the MoveMode and ResizeMode lines from the file, none of which worked. However, compositing was set to enabled=true, and setting that back to enabled=false fixed the problem.
So now my bug is that compositing was enabled for some reason, without the 10 second did this work button, when I changed the option to display content in resizing windows in the window behavior gui.
I can not reproduce this effect, and I know compositing was not turned on before I changed resizing behavior (because the graphics don't work with compositing enabled). Intentionally turning compositing on does immediately reproduce the effect, but correctly reverts in 10 seconds.
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