Mostafa Shahverdy composed on 2016-05-30 17:53 (UTC+0430): > I have an ultra wide monitor that supports 2560x1080. > While I have a Radeon 5450 graphic card, running Debian Sid, I only can get > 1920x1080. ...
I suggest you try purging xserver-xorg-video-ati and xserver-xorg-video-radeon. I couldn't get Stretch's radeon to do 2560x1080 with HD5450 either, but 2560x1080 WFM with the built-in/native Xorg modeset driver, the recommended FOSS driver for non-ancient gfxchips in xserver versions >1.16.x: http://fm.no-ip.com/SS/KDE/d9tde-desktop-2560x1080.jpg -- "The wise are known for their understanding, and pleasant words are persuasive." Proverbs 16:21 (New Living Translation) Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata *** http://fm.no-ip.com/