I should have noted that I'm aware vesafb is compiled into the kernel. For some reason, no matter what combination of modes are put on the kernel command-line, it doesn't help the virtual consoles.
With just vesafb+fbcon I tried vga=0x317 (1024 x 768 x 16) and 0x318 (1024 x 768 x 24) and they both worked whilst the system was starting up.
Another issue, possibly related, is that the initial GDM greeter screen is terribly colour-inverted (dark blue, negative-looking image). This is cured by switching away from VT7 and then switching back.
I should have noted that I'm aware vesafb is compiled into the kernel. For some reason, no matter what combination of modes are put on the kernel command-line, it doesn't help the virtual consoles.
With just vesafb+fbcon I tried vga=0x317 (1024 x 768 x 16) and 0x318 (1024 x 768 x 24) and they both worked whilst the system was starting up.
Another issue, possibly related, is that the initial GDM greeter screen is terribly colour-inverted (dark blue, negative-looking image). This is cured by switching away from VT7 and then switching back.