Robert Pommrich composed on 2019-01-23 15:58 (UTC+0100): > I checked and indeed found it a Richland one.
> But no combination of radeon.si_support and amdgpu.si_support helped. ... > Display Server: X.Org 1.19.2 drivers: ati,radeon (unloaded: > modesetting,fbdev,vesa) ... > Resolution: 1920x1080@60.00hz, 1280x1024@60.02hz > VGA-0 connected 1280x1024+1920+0 (normal left inverted right x axis y > axis) 338mm x 270mm > Any other ideas? You're using the ati/radeon driver. Have you tried the modesetting? Either specify modesetting in /etc/X11/xorg.conf.d/50-device.conf, or purge xserver-xorg-video-ati & xserver-xorg-video-radeon. -- Evolution as taught in public schools is religion, not science. Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata *** http://fm.no-ip.com/