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Bug#867701: Radeon HD 6450, black screen, cursor, no console



On 15/07/17 07:24 AM, Ivan Sergio Borgonovo wrote:
On 07/15/2017 05:29 AM, Michel Dänzer wrote:
On 15/07/17 07:10 AM, Ivan Sergio Borgonovo wrote:
On 07/10/2017 04:03 AM, Michel Dänzer wrote:
On 09/07/17 03:06 AM, Ivan Sergio Borgonovo wrote:

Please provide the output of the following:

apt-cache policy libegl1-mesa

ldconfig -p|grep libEGL

See attachments.

Hmm, the string "EGL search path is" and the corresponding code was removed upstream for Mesa 10.6. Look for instances of libEGL.so.1* other than /usr/lib/x86_64-linux-gnu/libEGL.so.1* on your system and see if removing those helps.


Does the same problem happen with 1:7.8.0-1+b1 with

     Option "AccelMethod" "glamor"

in /etc/X11/xorg.conf ?

Older xserver-xorg-video-radeon with that option DOESN'T WORK.
Black screen, text cursor at the top right corner ( _ ).

Right, as expected the problem is specific to glamor, which is the
default for your GPU in 7.9.0 but wasn't yet in 7.8.0. This means in the
worst case you can work around the problem with

    Option    "AccelMethod" "EXA"

in /etc/X11/xorg.conf.

Thanks, this solved the problem.

Could I suggest to add some notes in the changelog before closing the bug?

It's just a workaround. We don't know yet what the problem is, though it's likely specific to your system.


--
Earthling Michel Dänzer            |                  http://www.amd.com
Libre software enthusiast          |                Mesa and X developer


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