Description of problem: Desktop randomly goes blank whilst working. Desktop can be refreshed by maximizing a window and minimizing it again. Version-Release number of selected component (if applicable): x-org-x11-drv-openchrome - 0.2.900-7.fc8.x86_64 How reproducible: Bug randomly appears when working normally (i.e. internet browsing, using OpenOffice etc.). Bug is 100% reproducible when dragging an icon around on desktop with mouse for a short while. Steps to Reproduce: 1. left-click & hold icon which is located on desktop (i.e. trash) 2. drag icon around on desktop (i.e. left - right - left) 3. desktop goes blank/white Actual results: see attachment screenshot.png The visible parts of my orange desktop are due to opening the start-menu to locate the program for taking a screenshot. Maximizing a window also refreshs the desktop. Expected results: no blank screen. Additional info: Happens @ resolution of 1024 x 768 with 16 bpp and 32 bpp. Size of shared VGA-memory (32/64MB) has no effect.
Created attachment 292158 [details] screenshot of partially blank desktop
No time to try to reproduce this yet, but could you try to add Option "EnableAGPDMA" "0" to the Device section in your xorg.conf ? Please note this is only a possible workaround and not the proper fix in any case. It's likely to have a bad impact on the X performances of your machine. iirc, you're using a K8M800, right ?
Hello Xavier, sorry, I forgot to mention: Yes, my chipset is a VIA K8N800 on a Benq Joybook R23. Option "EnableAGPDMA" "0" in Device section of xorg.conf fixes the problem. No more blank screens! X performances not notably slower than with standard Vesa driver. Thank you once again :o)
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) 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 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 294275 [details] xorg.conf
booting without xorg.conf fails due to incorrect autodetection of my laptop screen. A standard CRT-monitor is used which leaves me with a black screen due to wrong resolution and refresh rate.
Created attachment 294277 [details] Xorg.0.log
Created attachment 294278 [details] Xorg.20.log
Created attachment 294279 [details] Xorg.setup.log
(In reply to comment #3) > Hello Xavier, > sorry, I forgot to mention: Yes, my chipset is a VIA K8N800 on a Benq Joybook R23. > Option "EnableAGPDMA" "0" in Device section of xorg.conf fixes the problem. > No more blank screens! It turns out this is most probably a bug with drm. This bug is likely to be fixed in the drm git tree from today (16/03/2008). I'd be really grateful if you can build this tree and give it a try without disabling AGPDMA. Here's a compilation guide : git clone git://anongit.freedesktop.org/git/mesa/drm cd drm cd linux-core make LINUXDIR=/lib/modules/`uname -r`/build DRM_MODULES=via cp *.ko /lib/modules/`uname -r`/updates/kernel/drivers/char/drm/ depmod -ae This will _not_ remove the modules shipped with the kernel rpm, but they will be loaded instead of the kernel ones. You'll need to make sure the old modules are unloaded before starting X. The easiest is probably to reboot. Lemme know if you need any help. Thanks in advance, Xavier
Reporter PM'ed me that he doesn't own the hardware anymore and thus cannot test... Closed INSUFFICIENT_DATA. However, I strongly believe this bug is fixed in upstream kernel by the following commit : http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f0fb6d7798e7e2d1f37a2c15892910661bdaba55