linux-kernel - Re: [BISECTED] commit 619efb1059 makes the MacBookPro2,2 screen flicker like its broken or half plugged in

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Date:	Fri, 11 Feb 2011 20:15:42 -0500
From:	Alex Deucher <alexdeucher@...il.com>
To:	Justin Mattock <justinmattock@...il.com>
Cc:	dri-devel@...ts.freedesktop.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	airlied@...hat.com
Subject: Re: [BISECTED] commit 619efb1059 makes the MacBookPro2,2 screen
 flicker like its broken or half plugged in

On Fri, Feb 11, 2011 at 10:57 AM, Justin Mattock
<justinmattock@...il.com> wrote:
>
>>
>> Better yet, can you try the attached patch on top of 2.6.38-rc4 or newer?
>>
>> Alex
>>
>
> o.k. applied that patch... unfortunately Im seeing the flickering screen and
> the crud shows up..
> initially during boot everything looked fine, its when I suspended the
> machine, upon wake-up
> the flickering occurred.
> kernel version is the current: 2.6.38-rc4-00107-gaa502b4

Can you try this patch?  Try uncommenting the following lines to see
if either of those flags work any better.  Try them individually and
together if possible and report back which, if any, helps.

/*pll->flags |= RADEON_PLL_PREFER_MINM_OVER_MAXP;*/

/*if (ASIC_IS_AVIVO(rdev))
        pll->flags |= RADEON_PLL_USE_FRAC_FB_DIV;*/

Thanks!

Alex

>
> Justin P. Mattock
>

View attachment "0001-drm-radeon-kms-hopefully-fix-pll-issues-for-real-v2.patch" of type "text/x-patch" (3179 bytes)