LCA: Graphics driver ponies

Posted Jan 28, 2010 7:42 UTC (Thu) by airlied (subscriber, #9104)
In reply to: LCA: Graphics driver ponies by thedevil
Parent article: LCA: Graphics driver ponies

If you don't enable KMS by default using the staging option, udev won't load it, so you'll need to load it by hand before starting X. This is really why distros need to ship support for KMS by default or don't bother.

So just load it by default somewhere before X starts and get a hires console.

LCA: Graphics driver ponies

Posted Jan 29, 2010 5:05 UTC (Fri) by thedevil (guest, #32913) [Link] (2 responses)

But it doesn't work! It gives me the same "No signal" behavior as when I enable vesafb.

I guess I should report this, but where?

LCA: Graphics driver ponies

Posted Jan 30, 2010 4:09 UTC (Sat) by thedevil (guest, #32913) [Link] (1 responses)

Solved! It turns out I haven't selected fbcon in the kernel config. So this is really a bug in the kernel build system: drm + kms should autoselect fbcon.

LCA: Graphics driver ponies

Posted Jan 30, 2010 11:36 UTC (Sat) by chris.wilson (guest, #42619) [Link]

It does, but only if you have not also selected to optimize for small/embedded systems where you can opt out of the overhead of allocating a framebuffer for the console.

config DRM_KMS_HELPER
tristate
depends on DRM
select FB
select FRAMEBUFFER_CONSOLE if !EMBEDDED