A solution to an interesting problem. Multi-monitor, multi-GPU: console framebuffer

[Catra]

A recent upgrade to the kernel can change which framebuffer the linux console uses if you have a multi-gpu/multi-monitor set up.

If you need the console to appear on a different framebuffer (not which monitor, but which gpu) you add the following to GRUB_CMDLINE_LINUX_DEFAULT=

fbcon=map:x

Where x is the framebuffer you want to use. (Starts at 0)

HTH, Additions and corrections would be cool.

[petsam]

Would you mind posting links to relevant documentation, or any other helpful info?

[tbg]

Thanks for the helpful tip @Catra.

It's always nice to see you posting on the forum.

[Catra]

re this post:

A solution to an interesting problem. Multi-monitor, multi-GPU: console framebuffer

A recent upgrade to the kernel can change which framebuffer the linux console uses if you have a multi-gpu/multi-monitor set up. If you need the console to appear on a different framebuffer (not which monitor, but which gpu) you add the following to GRUB_CMDLINE_LINUX_DEFAULT= fbcon=map:x Where x is the framebuffer you want to use. (Starts at 0) HTH, Additions and corrections would be cool.

the full, official documentation for fbcon:
https://www.kernel.org/doc/html/latest/fb/fbcon.html