KWin option of auto-suspending for fullscreen windows often causes X to crash in libdrm_intel
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
libdrm (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
xorg-server (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
xserver-xorg-video-intel (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
Ubuntu release: KUbuntu 12.04 (beta)
libdrm-intel1 2.4.32, xserver-xorg-core 1.11.4
In the Ubuntu 12.04 with the KWin option "suspend desktop effects for fullscreen windows"
enabled, I often get X crashes. This usually occures when I just exit from a fullscreen application,
before the usual KDE desktop should show up. Such thing usually happens with applications running
under wine, but recently I got a similar crash with the usual KDE screensaver. X server just restarts
and all unsaved work in my KDE session gets lost.
In the Xorg.0.log.old I find some stack backtrace, which may differ from case to case, but it always
ends in libdrm_intel. I attach a few examples below. I realize that these logs are possibly not very useful
(there are only raw addresses), but I have no idea how to make X to dump more detailed backtrace,
with full debug info. These crashes are rather well reproducible, and if someone explains how to get
more detailed information, I will gladly do this.
And I forgot to say that all this happens with the following graphics card:
Mobile Intel GL960/GM965 Chipset.