From: Jesse Barnes <jbarnes@virtuousgeek.org>
To: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Markus Rechberger <mrechberger@gmail.com>,
Greg KH <greg@kroah.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-usb@vger.kernel.org, werner@guyane.dyn-o-saur.com,
Marcus Meissner <meissner@suse.de>,
linux-kernel@vger.kernel.org
Subject: Re: 2.6.33 bugs (USBFS, Intel graphic)
Date: Sat, 27 Feb 2010 08:49:06 -0800 [thread overview]
Message-ID: <20100227084906.6b05fa5e@jbarnes-piketon> (raw)
In-Reply-To: <84144f021002270417j4d690ad2qf5db26b2b6dad232@mail.gmail.com>
On Sat, 27 Feb 2010 14:17:14 +0200
Pekka Enberg <penberg@cs.helsinki.fi> wrote:
> On Sat, Feb 27, 2010 at 2:15 PM, Pekka Enberg
> <penberg@cs.helsinki.fi> wrote:
> > On Sat, Feb 27, 2010 at 1:00 PM, Markus Rechberger
> > <mrechberger@gmail.com> wrote:
> >>> Linus, I know you didn't want to do a kzalloc, but it looks like
> >>> this is the easiest/simplest thing to do, unless you can think of
> >>> something else?
> >>
> >> do you have any idea what to cherrypick in order to get rid of that
> >> flickering with the intel GM45?
> >> The flickering itself occures randomly, it was not there with the
> >> original Ubuntu kernel (2.6.31 with alot patches)
> >> This is pretty much a standard graphicchip nowadays....
> >
> > Yeah, same here. I tried to bisect the damn thing but didn't find
> > any single commit. I think the problem was introduced in in the DRM
> > merge between 2.6.31 and 2.6.32-rc1. Some people suggested
> > privately that it might be related to frame buffer compression.
> > Unfortunately I wasn't able to revert that particular patch.
>
> Btw, after I reinstalled Ubuntu 9.10 from scratch for unrelated
> reasons, I haven't seen the flicker effect. Dunno if that's just a
> coincidence or if userspace has something to do with the bug.
Some people reported ACPI related flicker due to lid detection taking a
long time and X periodically probing for it. Maybe that's what you
were seeing?
--
Jesse Barnes, Intel Open Source Technology Center
next prev parent reply other threads:[~2010-02-27 16:48 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-27 3:42 Markus Rechberger
2010-02-27 3:56 ` Greg KH
2010-02-27 4:05 ` Markus Rechberger
2010-02-27 4:18 ` Greg KH
2010-02-27 4:29 ` Linus Torvalds
2010-02-27 4:34 ` Markus Rechberger
2010-02-27 5:17 ` Greg KH
2010-02-27 5:26 ` Greg KH
2010-02-27 5:38 ` Markus Rechberger
2010-02-27 5:48 ` Greg KH
2010-02-27 11:00 ` Markus Rechberger
2010-02-27 12:15 ` Pekka Enberg
2010-02-27 12:17 ` Pekka Enberg
2010-02-27 16:49 ` Jesse Barnes [this message]
2010-02-27 18:08 ` Markus Rechberger
2010-02-27 22:33 ` Markus Rechberger
2010-02-27 17:20 ` Alan Stern
2010-03-03 0:09 ` Greg KH
2010-03-05 21:37 ` Markus Rechberger
2010-03-06 16:30 ` Markus Rechberger
2010-03-06 17:06 ` Greg KH
2010-03-06 20:04 ` Alan Stern
2010-02-27 4:11 ` Linus Torvalds
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