ubuntu-x-swat team mailing list archive

[useResa <rdrijsen@xxxxxxxxx>]

*** This bug is a duplicate of bug 541492 ***
    https://bugs.launchpad.net/bugs/541492

In the Master bug #541492 I read the following:
However, I think it's pretty well known at this point that upstream's
code is fairly buggered with i845, so if you have that video card, if
you have a freeze it's probably not worth putting in more bug reports
about it at this point.  You can track the upstream bug report as it
progresses, and help them with testing things.  Be aware you'll probably
be expected to patch and build new kernels in order to do this.

Beyond that, assuming a patch doesn't come to light, the one other knob
we have to fiddle with at the distro level is to blacklist KMS from this
hardware.  See http://wiki.ubuntu.com/X/KernelModeSetting for more info
about this and how to configure it off (basically boot i915.modeset=0)
so it uses UMS instead.

Do I understand correctly that it is being advised to turn *off* KMS and check whether the freeze issues are over then?
In the Wiki I read it is possible to turn off KMS and thus reverting to UMS. But also the option of using framebuffering is mentioned. Which option is best to test?

Please advise

-- 
[i845] GPU lockup da27380f (PGTBL_ER: 0x00000049)
https://bugs.launchpad.net/bugs/545201
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xserver-xorg-video-intel in ubuntu.