[Maverick] [PATCH 0/4] KMS Disablement for i8xx
Leann Ogasawara
leann.ogasawara at canonical.com
Fri Sep 3 00:10:11 UTC 2010
On Fri, 2010-09-03 at 09:52 +1000, Christopher James Halse Rogers wrote:
> On Thu, 2010-09-02 at 14:25 -0400, Steven wrote:
> > Dear Kernel Team,
> >
> >
> > Please do NOT reapply these patches. UMS causes the majority of 8xx
> > cards to boot to a black screen on Lucid and forward. I spent at least
> > a month fixing probably a hundred different peoples' install problems
> > after Lucid was released because of these patches.
> >
>
> The situation in Maverick is different. In Lucid, we had the 2.9.1
> Intel X driver, which still had a UMS codepath. In Maverick, we have
> 2.12, which does not have any UMS code. The Intel driver in Maverick
> will not load without KMS.
>
> Disabling KMS on these cards in Lucid resulted in them using the UMS
> codepaths of the Intel X driver, and in many cases failing.
>
> Disabling KMS on these cards in Maverick will result in them using the
> VESA X driver, which has been reported to work on the various i8xx bugs.
>
> >
> > If you do decide to reapply these, PLEASE consider paying especially
> > close attention to bugs related to this change, at the very least.
> >
>
> I will.
Chris, thanks for the follow up and the clarification. Based on your
feedback, I'll go ahead and re-apply these patches.
Thanks,
Leann
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