I recently built a Debian “Wheezy” system,
which booted via GRUB to a non-framebuffer console, printingConsole: colour VGA+ 80x25
during boot. To
/etc/default/grub
I addedGRUB_GFXMODE=1920x1200 GRUB_GFXPAYLOAD_LINUX=keep
giving me the boot messages:
vesafb: mode is 1920x1200x16, ... fbcon: VESA VGA (fb0) is primary device Console: switching to colour frame buffer device 240x75 fb0: VESA VGA frame buffer device
But when I installed and booted Xen,
it reverted to the non-fb console.
/dev/fb0
isn’t present under dom0.How do I enable a framebuffer console under dom0?
(Note that this question is not about virtual framebuffers for a domU. There is no domU yet.)
This is for
grub-common
1.99-27+deb7u2,xen-system-amd64
4.1.4-3+deb7u3. The motherboard is a SuperMicro A1SRi-2558F, with an Aspeed AST2400.
Answer
I remedied this with
GRUB_CMDLINE_XEN_DEFAULT="vga=gfx-1920x1200x16"
One could use vga=ask
initially to see the available modes.
Notably,
GRUB_CMDLINE_LINUX_XEN_REPLACE_DEFAULT="quiet video=1920x1200"
did not solve the problem.
Attribution
Source : Link , Question Author : Mike , Answer Author : Mike