kubuntu 8.10 kwin crash

[Hakan Koseoglu]

Jonas Norlander said the following on 18/11/08 14:19:
> 2008/11/18 Hakan Koseoglu <hakan.koseoglu at gmail.com>:
>> Hi all,
>> 
>> As soon as the kwin start, it crashes w/o any visible errors
>> and X restarts.

OK, this appears to be a bug (feature?) in
xserver-xorg-video-openchrome and KDE 4.1.

I'll put in how I worked around the problem, just in case someone
googles for it.

KDE 4.1 on 8.10 tries to turn the hardware acceleration and promptly
crashes. No useful information is logged in Xorg log nor
.xsession-errors but the dmesg contains this helpful message:

[ 1557.504914] agpgart-amd64 0000:00:00.0: AGP 3.5 bridge
[ 1557.504981] agpgart-amd64 0000:00:00.0: putting AGP V3 device
into 8x mode
[ 1557.505141] pci 0000:01:00.0: putting AGP V3 device into 8x mode
[ 1566.298753] [drm:via_verify_command_stream] *ERROR* Accelerated
3D is not supported on this chipset yet.

Since 3D is not supported, instead of continuing w/o bothering with
it, KDE 4.1 stops loading and promptly crashes and exists.

Gdb and valgrind weren't much help.

Solution is working around the hardware acceleration by
creating a xorg.conf and adding the following option to the device
entry:
        Option      "NoAccel" "True"

The specific controller that has the "bug" is this:
01:00.0 VGA compatible controller: VIA Technologies, Inc.
K8M890CE/K8N890CE [Chrome 9] (rev 11)

I'm not sure if this is a bug. Should I raise it or just leave it?

Now, the next I shall tackle, why does Thunderbird insists on
wrapping this mail even though I told it not to... :)