drm2 again

[Steve Kargl]

On Thu, Nov 01, 2018 at 08:30:08AM +0000, Johannes Lundberg wrote:
> On Wed, Oct 31, 2018 at 10:32 PM Steve Kargl <
> sgk at troutmask.apl.washington.edu> wrote:
> 
> > If I compare Xorg.0.log for drm-legacy-kmod to drm-stable-kmod,
> > the black screen of death seems to be related to this failure in legacy
> >
> >  (II) RADEON(0): Setting screen physical size to 508 x 285
> >  failed to add FB for modeset
> >  (WW) RADEON(0): Failed to set mode on CRTC 0
> >  (EE) RADEON(0): Failed to enable any CRTC
> >
> > The only other difference in the Xorg.log file are
> >
> > legacy contains
> >
> >  (II) RADEON(0): mem size init: gart size :1fdef000 vram size: s:40000000
> >  visible:3f7d7000
> >  (II) RADEON(0): VRAM usage limit set to 928850K
> >
> > while stable has
> >
> >  (II) RADEON(0): mem size init: gart size :3fdde000 vram size: s:40000000
> >  visible:3f4b4000
> >  (II) RADEON(0): VRAM usage limit set to 925959K
> >
> > Note, the system does not have an /etc/X11/Xorg.org file.
> >
> 
> As for legacy I can't find any functional changes for the kernel drivers..
> I will look over the firmware code again today, see if I find anything.
> 
> Just out of curiosity, did you try drm-devel-kmod?
> 

I haven't tried drm-devel-kmod.  I assumed that if my hardware
wasn't supported by drm-stable-kmod, it would not be supported
in -devel-.  I'll try -devel- later today.
-- 
Steve
20170425 https://www.youtube.com/watch?v=VWUpyCsUKR4
20161221 https://www.youtube.com/watch?v=IbCHE-hONow