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SubjectRe: 4.8-rc1: it is now common that machine needs re-run of xrandr after resume
Date
Am Mittwoch, 14. September 2016, 12:17:53 CEST schrieb Jani Nikula:
> On Wed, 14 Sep 2016, Pavel Machek <pavel@ucw.cz> wrote:
> > For the "sometimes need xrandr after resume": I don't think I can
> > bisect that. It only happens sometimes :-(. But there's something
> > helpful in the logs:
> >
> > [ 1856.218863] [drm:drm_edid_block_valid] *ERROR* EDID checksum is
> > invalid, remainder is 130
> > [ 1856.218863] Raw EDID:
> > [ 1856.218863] 00 ff ff ff ff ff ff 00 ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] [drm:drm_edid_block_valid] *ERROR* EDID checksum is
> > invalid, remainder is 130
> > [ 1856.218863] Raw EDID:
> > [ 1856.218863] 00 ff ff ff ff ff ff 00 ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] [drm:drm_edid_block_valid] *ERROR* EDID checksum is
> > invalid, remainder is 130
> > [ 1856.218863] Raw EDID:
> > [ 1856.218863] 00 ff ff ff ff ff ff 00 ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] [drm:drm_edid_block_valid] *ERROR* EDID checksum is
> > invalid, remainder is 130
> > [ 1856.218863] Raw EDID:
> > [ 1856.218863] 00 ff ff ff ff ff ff 00 ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > [ 1856.218863] i915 0000:00:02.0: HDMI-A-1: EDID block 0 invalid.
>
> Pavel, Martin, do you always see this when the display fails to resume?
> Is it HDMI/DVI for both of you?

According to zgrep "EDID" /var/log/kern* I don´t have any EDID related error
messages. I am using DisplayPort cable via ThinkPad Minidock Plus (dock for
ThinkPad T520) or what it was named.

--
Martin

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