linux-kernel - Re: Linux 5.10-rc4; graphics alignment

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Message-ID: <0ffe5554-83f4-bff6-d3f0-5a30dfe2920c@suse.de>
Date:   Wed, 25 Nov 2020 09:25:19 +0100
From:   Thomas Zimmermann <tzimmermann@...e.de>
To:     David Laight <David.Laight@...LAB.COM>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Daniel Vetter <daniel.vetter@...ll.ch>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        "Huang, Ray" <ray.huang@....com>, Dave Airlie <airlied@...hat.com>,
        Christian König <christian.koenig@....com>
Subject: Re: Linux 5.10-rc4; graphics alignment

Hi

Am 24.11.20 um 17:27 schrieb David Laight:
> From: David Laight
>> Sent: 20 November 2020 15:39
>>
>> From: Thomas Zimmermann
>>> Sent: 20 November 2020 13:42
>> ...
>>> I did a diff from v5.10-rc4 to drm-tip to look for suspicious changes.
>>> Some candidates are
>>>
>>>     8e3784dfef8a ("drm/ast: Reload gamma LUT after changing primary
>>> plane's color format")
>>
>> Ok, that one fixes the screen colours (etc).
>> So 8e3784dfef8a was good and then HEAD^ was bad.
>>
>> I might try to bisect the breakage.
>>
>> The stack splat is entirely different.
>> I'll try to bisect that on Linus's tree.
> 
> The good news is I'm not getting the stack splat on rc5.
> I'm not sure I can be bothered to find out when :-)
> 
> Applying 8e3784dfef8a to rc5 by hand also fixes the display colours.

I've added this commit to drm-misc-fixes and it should show up in the 
upstream kernel soonish.

Best regards
Thomas

> 
> 	David
> 
> -
> Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
> Registration No: 1397386 (Wales)
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-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer

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