On Tue, Jan 6, 2015 at 11:32 PM, Daniel Vetter <daniel at ffwll.ch> wrote:
>
> Yeah if the edid probe fails userspace will get a hotplug and
> autodisable the output. With a failsafe X session (just a dumb
> terminal) we can avoid that to check that dpms on itself would work or
> whether the edid probe fail here is just indicative of more trouble.
> Also please boot with drm.debug=0xe, repro and grab dmesg, that might
> shed some more light on what's failing.
Here is an annotated attachment with the dpms off output witj drm.debug=0xe.
It turns out the real failure case doesn't seem to be when the bad
EDID happens. See my notes interspersed with the dmesg output.
Linus
-------------- next part --------------
A non-text attachment was scrubbed...
Name: dpms-failure
Type: application/octet-stream
Size: 79407 bytes
Desc: not available
URL:
<http://lists.freedesktop.org/archives/dri-devel/attachments/20150107/32ad4248/attachment-0001.obj>
