linux-kernel - Re: 15-rc1: radeon modesetting fails

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Message-ID: <534D677C.6080407@gmail.com>
Date:	Tue, 15 Apr 2014 20:08:12 +0300
From:	Kertesz Laszlo <laszlo.kertesz@...il.com>
To:	Alex Deucher <alexdeucher@...il.com>,
	Borislav Petkov <bp@...en8.de>
CC:	Alex Deucher <alexander.deucher@....com>,
	Christian König 
	<christian.koenig@....com>,
	Maling list - DRI developers 
	<dri-devel@...ts.freedesktop.org>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: 15-rc1: radeon modesetting fails

Alex Deucher wrote:
> On Tue, Apr 15, 2014 at 8:07 AM, Borislav Petkov <bp@...en8.de> wrote:
>> Hi Christian,
>>
>> On Tue, Apr 15, 2014 at 11:28:55AM +0200, Christian König wrote:
>>> Hi Borislav,
>>>
>>> that's a known issue and should be fixed in the next rc, see this
>>> bugreport: https://bugs.freedesktop.org/show_bug.cgi?id=77009
>>>
>>> You might also want to try my branch with 3.15 fixes which includes
>>> the necessary patch for this: http://cgit.freedesktop.org/~deathsimple/linux/log/?h=drm-fixes-3.15-wip
>>>
>>> Let me know if that branch works for you or not.
>>
>> so I went and merged your branch as you suggested. Btw, on its tip it
>> has:
>>
>> commit ec02666dd0791312b5820e1a9a023681d99d07ec
>> Author: Quentin Casasnovas <quentin.casasnovas@...cle.com>
>> Date:   Tue Mar 18 17:16:52 2014 +0100
>>
>>      drm/radeon: memory leak on bo reservation failure. v2
>>
>> (just checking whether I got the right one)
>>
>> and, unfortunately, no change - same problem. Let me know if I should
>> bisect the subset of 59 radeon patches which went in during the merge
>> window...
>>
>> Btw, just in case, I went and updated radeon firmware in
>> /lib/firmware/radeon/ from upstream but it didn't change anything.
>
> Does reverting:
> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=32167016076f714f0e35e287fbead7de0f1fb179
> fix the issue?  We may need to tweak the pll parameters for older asics.
>
> Alex
>
>>

Same issue here (integrated Radeon HD 8570D), 64 bit Debian, kernel, drm, mesa built from git today. I see nothing and receive no message on the monitors (i have 2 identical ones, one on the DVI andother on HDMI), but the system is running fine  otherwise it seems, i could switch to the console, log in and reboot blindly. Cristian's branch didnt help.

Reverting 32167016076f714f0e35e287fbead7de0f1fb179 did work.

Attached dmesg (booted the unmodified rc1 kernel, switched to tty1 and rebooted blindly).

-- 
O zi buna,
Kertesz Laszlo

View attachment "dmesgblack.txt" of type "text/plain" (62030 bytes)