On Tue 04 Oct 2016 at 14:41:11 -0400, Felix Miata wrote: > Hans Kraus composed on 2016-10-04 20:01 (UTC+0200): > > >The VGA output: > >======================================================================== > >01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. > >[AMD/ATI] Turks XT [Radeon HD 6670/7670] (prog-if 00 [VGA controller]) > ... > >As far as I know I didn't install a special video driver. At least not > >for Jessie, and, to the best of my knowledge, not for Wheezy too. > ... > > Do you have xserver-xorg-video-ati, amd64-microcode and firmware-linu* > installed? Xorg.0.log reports using the radeon driver, but your Turks may > require the AMD driver from the ati package, and/or firmware not included in > a default installation. > > (EE) Failed to initialize GLX extension (Compatible NVIDIA X driver not > found) in Xorg.0.log would normally be a bad sign, but as you're using AMD > video, the appearance of that message should be a logging error, not a real > error.
You have highlighted > (EE) Failed to initialize GLX extension (Compatible NVIDIA X driver not found) This is an interesting line in the log. Why should using a radeon card give such a message? What has radeon to do with nvidia? It could be a logging error but why does it occur? xorg has sorted out which card is present. Incidentally, we know X comes up for the OP (gnome-session runs. Without X it wouldn't). So this may not be the problem at all. glxinfo | grep render is a good command for the OP to run. We would be interested in its output. However, perhaps the OP could look at dpkg -l | grep nvidia and purge any packages if anything nvidia related is in its output. -- Brian.