ubuntu-x-swat team mailing list archive

[Christian Neumair <cneumair@xxxxxxxxx>]

> Kernel 2.6.29-02062904-generic seems to solve the problems for me too (X700 mobility, Ubuntu 9.04).
> I used to have random freezes while using 3D apps.

Same over here. With a fully updated stock Ubuntu Jaunty on a T43p / i386 with a
  01:00.0 VGA compatible controller: ATI Technologies Inc M22 [Mobility Radeon X300]
graphics card, the "radeon" driver and the packages
  linux-image-2.6.28-11-generic 2.6.28-11.42
  xserver-xorg 1:7.4~5ubuntu18
  xserver-xorg-video-radeon 1:6.12.1-0ubuntu2
and an empty xorg.conf.

Problems were:
* random freezes with 3D applications [both with compiz enabled or disabled, DRI & AIGLX were always enabled]
* poor Compiz performance

Both issues were solved by upgrading to linux-
image-2.6.29-02062904-generic from the above kernel PPA source. I wonder
whether the relevant kernel changes will be backported? I could help to
track down in detail what caused the issue. The alternative of disabling
DRI for all affected users as described in comment 30 isn't particularly
nice.

Those whose problems could not be solved by a kernel upgrade seem to be
affected by random freezes even when no 3D application runs. Maybe those
people could describe their configuration, and used packages in depth?
Especially which kernel/xorg combinations work, and which don't. Also,
focusing on "future" technologies [recent DRI releases, EXA] instead of
downgrading X.Org would be nice, since XAA or support for the old DRI
architecture will be discontinued. Also, please try to start with stock
packages and _systematically_ vary the kernel/xorg versions.

-- 
[RV250] Kubuntu: X Freezes with Radeon driver EXA/XAA Composite
https://bugs.launchpad.net/bugs/348332
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