[Intel-gfx] Several regressions in KMS vs UMS mode

[Robert Lowery]

> On Fri, 4 Dec 2009 08:11:07 +1100 (EST)
> "Robert Lowery" <rglowery at exemail.com.au> wrote:
>
>> > On Thu, 3 Dec 2009 21:48:15 +1100 (EST)
>> > "Robert Lowery" <rglowery at exemail.com.au> wrote:
>> >
>> >> Folks,
>> >>
>> >> After recently upgrading to my GM965 based AOpen MP965DR MiniPC to
>> >> Ubuntu Karmic (9.10), I have noticed several regressions when
>> >> running in KMS mode
>> >>
>> >> 1) My 1080p Sony VPL-VW50 projector comes up by default in 1024x768
>> >> mode instead of 1920x1080
>> >> 2)  My CRT TV which is attached via component video no longer comes
>> >> up in 576p mode as specified in xorg.conf (I have tried specifying
>> >> both "TV Format" and "mode" options)
>> >> 3) Margin settings in xorg.conf for the same TV are being ignored.
>> >
>> > Have you filed bugs for these issues?  I think we only recently
>> > added a few TV properties in the KMS case (though the old ones
>> > should have worked too).
>> Not yet, I was first looking for confirmation that it was not just a
>> configuration issue.  xorg.conf always seems to be hard to get just
>> right and it looks like with KMS the TV output became TV1 and the "TV
>> Format" option became "mode".  Can someone please look at my
>> xorg.conf and confirm it looks ok?
>>
>> Also, Is the 2.6.32 kernel likely to have already fixed any of these
>> issues?
>>
>> I'm happy to submit them if they appear to be real issues.
>
> They sound like real issues, I wouldn't be surprised if the first
> problem was an EDID fetching bug like ajax mentioned.  The other two
> may be related to the way our KMS usermode code interacts with the
> kernel; I don't think they're likely to be fixed in 2.6.32 but I
> haven't looked at the TV patches that went in recently.

OK, I have submitted them as
25428 - [GM965 KMS] Default resolution is incorrect in KMS mode
25429 - [GM965 KMS] TV Format ignored in xorg.conf
25430 - [GM965 KMS] TV margins ignored in xorg.conf

Cheers

-Rob
>
> --
> Jesse Barnes, Intel Open Source Technology Center
>