On Mon, Jul 06, 2020 at 10:57:05PM +0200, Jakob Miksch wrote: > Hello everybody, > > I am running Debian "Sid" on a desktop PC with the "AMD ATI FirePro W5100" > graphics card. When I connect a second monitor, Debian recognizes it but the > monitor stays black. I can even move windows on it, but I cannot see them. > > On the same computer is a Windows 10 partition on which the connection of both > monitors works without problem. > > I have installed all drivers like described here > https://wiki.debian.org/AtiHowTo . I also tried to install the proprietary > driver from the AMD website. Everything without success. > > Do you have any idea what the problem could be? > > I am happy about any hint. > Thanks and best wishes, > Jakob
I assume you are using some version of RandR? Try searching the packages for "randr". I use "xrandr" for scripting, but also the XFCE desktop's normal settings dialog for "Monitors" which runs the xfce4-display-settings program. Good lick,
