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

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Message-ID: <534E422B.3030204@amd.com>
Date:	Wed, 16 Apr 2014 10:41:15 +0200
From:	Christian König <christian.koenig@....com>
To:	Kertesz Laszlo <laszlo.kertesz@...il.com>,
	Borislav Petkov <bp@...en8.de>,
	"Deucher, Alexander" <Alexander.Deucher@....com>
CC:	Alex Deucher <alexdeucher@...il.com>,
	Maling list - DRI developers 
	<dri-devel@...ts.freedesktop.org>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: 15-rc1: radeon modesetting fails

Am 16.04.2014 10:32, schrieb Kertesz Laszlo:
> Borislav Petkov wrote:
>> On Tue, Apr 15, 2014 at 10:32:56PM +0000, Deucher, Alexander wrote:
>>> Turning off modesetting basically disables the driver.
>>
>> Well, in my case, I was using the radeon.modeset=0 variant to rule out
>> issues in x.org. And in my case x.org did start still, albeit with a
>> jacked-up resolution.
>>
>> But in Laszlo's case, x.org gets "puzzled" too.
>>
>
> Maybe your distro's xorg has some generic vga fallback method. I am 
> not aware that mine (Debian Testing) has one.
> BTW I use Debian Testing (xfce) and glamor (compiled from git) so i 
> need a specific xorg.conf.
>

Using "nomodeset" or radeon.modeset=0 tries to use the deprecated user 
mode setting, which in your case isn't even supported by the driver.

Please provide dmesg logs with drm-debug=0xe instead.

Thanks in advance,
Christian.
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