[PATCH] drm/bochs: convert bochs driver to atomic mode-setting

John Hunter zhjwpku at gmail.com
Wed Jun 10 01:15:09 PDT 2015

Thanks for the information, I will try that : )

On Wed, Jun 10, 2015 at 4:04 PM, Gerd Hoffmann <kraxel at redhat.com> wrote:

>   Hi,
> > As far as I know, the convertion got some problem, and after I
> > add the bochs driver when I boot the qemu VM, it just can not
> > start up, works fine if I delete bochs-drm.ko from it's directory.
> With fbdev enabled alot initialization happens with some important
> console lock taken, which has the effect that you don't see any kernel
> messages until it all succeeded.  If it doesn't succeed you are stuck in
> the dark.  Guess this is what happened ...
> So, configure a serial console for your virtual machine.
> Turn off fbdev support (bochs_drm has a module option for that).
> That most likely gives you a clue where things blow up.
> Then get X11 running.
> kmscon is a nice test too.
> When all this works try turning fbdev back on.
> HTH,
>   Gerd

Best regards
Junwang Zhao
Microprocessor Research and Develop Center
Department of Computer Science &Technology
Peking University
Beijing, 100871, PRC
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