Comment 32 for bug 350306

I can't say for sure this is what is causing my X to hang.. but I do see the same error.

degroff@degrofft61:~$ dmesg|grep drm
[64485.809417] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0
[64502.356039] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0
[64552.908711] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0
[64583.100612] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0
[64616.319756] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0
[64623.276415] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0
[64626.588207] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0
[64812.197509] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0

If this is what is causing my X to hang.. it seems to happen when I launch something from the panel. When I click on an icon to launch an application, I get an orange'ish line vertically up and down the whole left side of my screen (external screen). When it hangs, that line often stays there.. and I have to switch to a console and kill X to get my computer back.

It is getting bad.. I lose everything I was doing.. and it happens quite often.

I'm on Ubuntu 9.04
Linux degrofft61 2.6.28-15-generic #48-Ubuntu SMP Wed Jul 29 08:54:56 UTC 2009 i686 GNU/Linux
00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c)
xserver-xorg-video-intel 2:2.7.1-0ubuntu1~xup~1

It also seems to happen more often than note when I launch Lotus Notes, Rational Application Developer, or tn5250j. I don't know that is related.. but that is when I seem to hit this.

I don't use compiz,