What are you displaying? Are you using X or Wayfire as a window manager, or just a framebuffer based console?
If X or Wayfire, then xrandr / wlr-randr should allow you to do that.
If console, then adding "video=HDMI-A-1:1920x1080M@60,reflect_x" to /boot/firmware/cmdline.txt (don't add any carriage returns) will reflect just HDMI-1, whilst leaving HDMI-2 unreflected. In theory just "video=HDMI-A-1:reflect_x" should work, but it seems not to for me with a quick test.
Note that this will only reflect the primary plane, so starting a window manager will cause some fun with the mouse cursor not being inverted on that screen.
If X or Wayfire, then xrandr / wlr-randr should allow you to do that.
If console, then adding "video=HDMI-A-1:1920x1080M@60,reflect_x" to /boot/firmware/cmdline.txt (don't add any carriage returns) will reflect just HDMI-1, whilst leaving HDMI-2 unreflected. In theory just "video=HDMI-A-1:reflect_x" should work, but it seems not to for me with a quick test.
Note that this will only reflect the primary plane, so starting a window manager will cause some fun with the mouse cursor not being inverted on that screen.
Statistics: Posted by 6by9 — Wed Jan 31, 2024 4:47 pm
