[ubuntu-x] x.org cpu spin / hang while using XAA on G45 with 2.4.1 driver (stack included)

Bryce Harrington bryce at canonical.com
Tue Sep 30 01:09:24 BST 2008

On Sat, Sep 27, 2008 at 09:42:01AM +0200, Martin Olsson wrote:
> Bryce Harrington wrote:
> > On Fri, Sep 26, 2008 at 10:43:03PM +0200, Martin Olsson wrote:
> > For the -intel driver, upstream does not support XAA any longer, and
> > probably wouldn't be surprised to hear there are bugs when using it.  ;-)
> > 
> > So, I'd be more interested in why you're using XAA instead of EXA.  If
> > there are other bugs with EXA, those will have some priority; XAA bugs
> > will probably be filed as won't-fix.
> On my box (and I think all G45 / GMA X4500HD machines) EXA+2.4.1 driver is
> too unstable to use. It rarely survives more than a few seconds before it
> starts to flash and then turns black (and sometimes corrupted image on screen).

So that's probably the bug to focus time on, rather than the issue when
using XAA.

Have you tried disabling compiz (e.g. sudo chmod a-x /usr/bin/compiz)?

> However, I heard Zhenyu say on irc last night that he had a G43 chipset
> machine running pretty stable (except for some window corruptions) so I
> think trunk is in way better shape compared to the version
> that I'm using.

Have you confirmed that running trunk and EXA works for you?

> Will intrepid have time to merge the trunk versions of intel driver repos
> before release?

There is not much time left.  We may be able to pull in individual
patches.  The current git of -intel (and thus the next release) require
an unreleased git version of libdrm; pulling git versions of both the
driver and libdrm brings a very large load of risk, so would require a
very strong justification to do something like that.

> It would be a shame if all new intel cards didn't boot
> ubuntu for the next 6 months.

Do you have proof that other new intel cards are not booting ubuntu?
All my intel hardware is booting Ubuntu okay.


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