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Bug#822575: debian regression: no more console output after "switching to mgag200drmfb from simple"



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On Mon, Apr 25, 2016 at 03:54:30PM +0200, Harald Dunkel wrote:
[...]
>	fb: switching to mgag200drmfb from simple
> 
> on amd64 at boot time. No further console output, esp. no
> login prompt. This is a regression of Debian's version 4.4.x;
> older kernels or a kernel built from upstream's sources
> doesn't show this problem. (I tried upstream's 4.4.8 and
> 4.5.2 on unstable.)
[...]
> Please note the "Console: switching to colour dummy device 80x25".
> I am using GRUB_GFXMODE=1280x1024.

And have you tried removing that?

[...]
>  I got quiet a number of these intel boards, i.e. its a pretty
>  painful problem. I wouldn't like to run all these hosts with
>  80x25.

That might be an effect of the driver being confused by GRUB's
modesetting.  I don't know.

Ben.

-- 
Ben Hutchings
The generation of random numbers is too important to be left to chance.
                                                            - Robert Coveyou

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