On Sat, Aug 30, 2025 at 5:40 PM Van Snyder <[email protected]> wrote:
> I have a monitor that confuses the graphics drivers. When Debian (12 or > 13) starts, the display is shifted about three inches to the right — both > in text mode while things are starting, and later when either sddm or gdm3 > runs. One can choose whether to use gnome or KDE as a window manager by > using the little gear icon at the bottom right corner, after choosing the > user and before submitting the password. But … with the display shifted, > the little gear icon isn't on the screen, so I can't select one (I have > Gnome and KDE installed). > > I tried putting video=1680x1050 on the "linux" line in grub.cfg but that > had no effect. > > 1. Can I specify the video mode that sddm or gdm3 uses? > > 2. Can I select the window manager other than by way of the little > (invisible) gear icon? > > The problem happens with two different computers, both running Debian 12 > (and then 13), using either NVidia drivers (for K2200 or FX 1300) or > nouveau drivers. > > And a new problem is that after reinstalling Debian 13 on one of the > computers, I can't get past the login screen, either using sddm or gdm3. > gdm3 doesn't even offer to accept the password. sddm accepts it, blanks the > screen as though it's about to launch the window manager, then goes back to > the login screen. Any ideas how to get around this? Or should I just give > up and reinstall Debian 13 (again)? > Try changing to a console terminal "Ctrl + Alt + F2". After login try running `startx` or wayland equivalent to attempt to launch the GUI. If it fails you should get error messages. -- ⢀⣴⠾⠻⢶⣦⠀ ⣾⠁⢠⠒⠀⣿⡁ Debian - The universal operating system ⢿⡄⠘⠷⠚⠋⠀ https://www.debian.org/ ⠈⠳⣄⠀⠀
