LCA: Graphics driver ponies [LWN.net]

LCA: Graphics driver ponies

Posted Jan 29, 2010 5:05 UTC (Fri) by thedevil (guest, #32913)
In reply to: LCA: Graphics driver ponies by airlied
Parent article: LCA: Graphics driver ponies

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?

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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