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

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Date:	Tue, 8 Feb 2011 13:48:21 -0800
From:	Justin Mattock <justinmattock@...il.com>
To:	Alex Deucher <alexdeucher@...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 Feb 8, 2011, at 1:20 PM, Alex Deucher wrote:

> On Tue, Feb 8, 2011 at 3:52 PM, Justin P. Mattock
> <justinmattock@...il.com> wrote:
>> With the current HEAD Im getting screen flickering really bad to  
>> point where
>> it looks like the screen is damaged and/or half plugged-in etc..
>>
>> the bisect pointed to here:
>>
>> commit 619efb105924d8cafa0c1dd9389e9ab506f5425d
>>
>> doing a git revert 619efb10592
>> gets the screen working properly again.
>> I havent looked much through the code to see if I can fix this. for  
>> the time
>> being I'll revert this on my machine with the current, until later  
>> on.
>
> The attached patch should fix it assuming I got your pci ids correct.
> I'm done with the pll stuff; too may fixes break other boards.  Just
> add a quirk table and be done with it.
>
> Alex
>
>>
>> lspci -vv shows my card info(let me know if you need anymore)
>>
>> 01:00.0 VGA compatible controller: ATI Technologies Inc M56P [Radeon
>> Mobility X1600] (prog-if 00 [VGA controller])
>>        Subsystem: Apple Computer Inc. MacBook Pro
>>        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-  
>> ParErr-
>> Stepping- SERR- FastB2B- DisINTx+
>>        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
>> <TAbort- <MAbort- >SERR- <PERR- INTx-
>>        Latency: 0, Cache Line Size: 256 bytes
>>        Interrupt: pin A routed to IRQ 42
>>        Region 0: Memory at 40000000 (32-bit, prefetchable)  
>> [size=128M]
>>        Region 1: I/O ports at 3000 [size=256]
>>        Region 2: Memory at 50300000 (32-bit, non-prefetchable)  
>> [size=64K]
>>        Expansion ROM at 50320000 [disabled] [size=128K]
>>        Capabilities: <access denied>
>>        Kernel driver in use: radeon
>>        Kernel modules: radeon
>>
>>
>> Justin P. Mattock
>>
> <0001-drm-radeon-kms-fix-pll-algo-quirk-function.patch>



cool... The patch fixes it over here

Reported-and-Tested by: Justin P. Mattock<justinmattock@...il.com>

Thanks..

Justin P. Mattock
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