kernel 4.3 -> black console

[Emil Velikov]

On 11 November 2015 at 05:30, Alex Deucher <alexdeucher at gmail.com> wrote:
> On Tue, Nov 10, 2015 at 11:32 PM, Daniel Mota Leite
> <daniel at motaleite.net> wrote:
>> Hi
>>         Since i upgrade from kernek 4.2.5 to 4.3 i notice that i have no
>>         console, i get a black screen and the monitor flags no signal.
>>
>>         When the X is loaded, i get the normal X screen and everything
>>         works. If i switch to the console using ctrl+alt+f1, again the
>>         monitor enters in energy saving mode.
>>
>>         Going back to 4.2.5 everythings works fine.
>>         I'm using slackware64-current on a A10 APU and mesa 11.0.4
>>
>>         Any way to fix/debug this, or i will have to bisect it?
>>         should i restrict the bisect to drivers/gpu/drm/radeon path
>>         or should use more paths
>
> It sounds like you didn't compile fbcon into your kernel or if you
> built it as a module, you didn't load it.
>
... or the new DRM_FBDEV_EMULATION option ended up set to N ?

-Emil