On Wednesday, 22 March 2023 at 17:12, Steven A. Falco wrote: > On 3/22/23 11:23 AM, stan via devel wrote: > > On Tue, 21 Mar 2023 17:14:44 -0400 > > "Steven A. Falco" <stevenfalco@xxxxxxxxx> wrote: > > > > > I think I'm finally getting somewhere with this problem. > > > > > > My motherboard has a built-in VGA interface, which shows up as > > > "astdrmfb" on fb0. My AMD video card is "amdgpudrmfb" on fb1. > > > > > > For some reason, the kernel uses fb1 for the graphical desktop, but > > > when I type Ctrl-Alt-F3 it switches to the VGA interface on fb0. > > > > > > So my question is now probably simpler - I need to find a way to tell > > > the kernel to ignore fb0 completely, and just use fb1 for everything. > > > > > > I'll do some searching to see if I can figure that out, but if > > > someone knows off the top of their head how to force a framebuffer to > > > be ignored, I'd appreciate it. > > > > Is there a way to turn off the fb0 in the BIOS? Hit F2 or Del to get > > into the bios while booting. Yours might be different, but I think > > these are pretty standard. > > I read through the motherboard manual and while I don't see a way to > turn off the on-board VGA hardware from the BIOS, there is a physical > switch on the motherboard to disable it completely. > > I tried that, and it worked. Now the kernel only sees my AMD video > card and assigns it to fb0. And all the virtual consoles now work > properly. > > Thanks again for your help, Stan. I appreciate it! For future reference and for others who bump into similar issue, you can use the fbcon=map:1 kernel option to map the second fb to the console. See https://www.kernel.org/doc/html/latest/fb/fbcon.html for more details. Regards, Dominik -- Fedora https://getfedora.org | RPM Fusion http://rpmfusion.org There should be a science of discontent. People need hard times and oppression to develop psychic muscles. -- from "Collected Sayings of Muad'Dib" by the Princess Irulan _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
