linux-kernel - Re: Linux 2.6.37-rc8

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Message-ID: <AANLkTikq9QHDk2zN+b8LFjrfqmHgtHWS8nT42hfiSwrz@mail.gmail.com>
Date:	Thu, 6 Jan 2011 08:49:57 +1000
From:	Dave Airlie <airlied@...il.com>
To:	Pavel Machek <pavel@....cz>
Cc:	Chris Wilson <chris@...is-wilson.co.uk>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Linux 2.6.37-rc8

On Thu, Jan 6, 2011 at 8:05 AM, Pavel Machek <pavel@....cz> wrote:
> Hi!
>
>> >> > I still see blank screen on thinkpad x60... but so do I on 2.6.36 with
>> >> > same config, so maybe it is just tricky to configure?
>> >>
>> >> Old bug? I thought we had KMS on 945 pretty well understood by now. Care
>> >> to attach the dmesg with drm.debug=0xe? And to check against linus/master
>> >> for the most recent regression fixes.
>> >
>> > dmesg is attached (delme.gz), as is config.
>> >
>> > And yes, I did git pull few minutes ago...
>>
>> Disable CONFIG_FB_VESA or remove the vga= line from the commandline for a
>> first test.
>
> Yes, that helped, thanks. (But are not framebuffers expected to "take
> over" and replace one another?)

In an ideal world they should, but vesafb can do things to the
hardware and leave it in a bad
state for the intel driver and it doesn't figure it out. Also I think
the handover needs to be done
earlier for Intel as well, like nouveau and radeon do.

Dave.
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