Re: 2.6.32 regression (bisected): Video tearing/glitching with T400laptops

From: Jesse Barnes
Date: Sun Oct 18 2009 - 21:05:27 EST


On Thu, 15 Oct 2009 00:02:04 -0400
Theodore Tso <tytso@xxxxxxx> wrote:

> On Wed, Oct 14, 2009 at 10:26:45PM -0400, Theodore Tso wrote:
> >
> > If I need to live with a display glitch every 5-10 minutes or so to
> > get better power savings, I'll take it....
> >
>
> While mail reading and composing responses in a tty based mail reader
> (mutt/emacs -nw), I'm seeing display glitches every 3-5 minutes. Each
> time it's quite minor so it's the sort of thing which is definitely
> "blink at the wrong time and you'll miss it".
>
> Being a battery lifetime freak, I'll definitely take the tradeoff, but
> given that it occurs even when I'm plugged into AC mains, I could see
> some users being annoyed by it, and I could see them wanting to be
> able to switch off the feature when they are on AC, if we find a
> complete fix.

Ok, hopefully this is the "correct" patch. It works for me, can you
give it a try?

Thanks,
Jesse