svn commit: r194540 - head/sys/dev/drm

Daniel Eischen deischen at
Sat Jun 20 19:05:18 UTC 2009

On Sat, 20 Jun 2009, Andriy Gapon wrote:

> on 20/06/2009 19:56 Daniel Eischen said the following:
>> On Sat, 20 Jun 2009, Robert Noland wrote:
>>> Author: rnoland
>>> Date: Sat Jun 20 16:45:14 2009
>>> New Revision: 194540
>>> URL:
>>> Log:
>>>  The G45 docs indicate that all G4X chips use the new framecount
>>> register.
>>>  Intel agrees with my reading of the docs, make it so for all G4X chips.
>>>  The new register also has a 32 bit width as opposed to 24 bits.  Fix
>>>  things up so that the counters roll over properly.
>> Could this possibly fix the problem I'm seeing with the screen being
>> garbage after a logout from KDE 3.x (using kdm)?  Everything works
>> fine after logging in, but when you log out, the screen is left with
>> garbage/lots of vertical striping.  This only happened after upgrading
>> my system (and all ports) to Xorg 7.4, worked just fine before that.
>> agp0: <Intel 82945GM (945GM GMCH) SVGA controller> on vgapci0
>> agp0: detected 7932k stolen memory
>> agp0: aperture size is 256M
>> vgapci1: <VGA-compatible display> mem 0xdff80000-0xdfffffff at device
>> 2.1 on pci0
> I had similar symptoms. In my case this was cause X server crashing?
> Do you see the same. If yes, there might be a recipe for cure.

Possibly, I don't recall if the X server crashed after logout.
Ctrl-Alt-F1, then Ctrl-Alt-Del to reboot was the only way to
recover, sometimes a hard reset was required.  I guess I'll
have to try this change to see if it resolves my problem.


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