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Re: 4.8-rc1: it is now common that machine needs re-run of xrandr after resume

From Martin Steigerwald <martin@lichtvoll.de>
Newsgroups linux.kernel
Subject Re: 4.8-rc1: it is now common that machine needs re-run of xrandr after resume
Date 2016-09-15 17:40 +0200
Message-ID <shGVz-ku-9@gated-at.bofh.it> (permalink)
References <sh2v8-6Mr-9@gated-at.bofh.it> <shewh-7tn-7@gated-at.bofh.it> <shgoq-ao-35@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Am Mittwoch, 14. September 2016, 14:14:35 CEST schrieb Jani Nikula:
> On Wed, 14 Sep 2016, Jani Nikula <jani.nikula@linux.intel.com> wrote:
> > 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?
> 
> Please try this patch, backported from our next.

Was busy up to now, and weekend also quite full already.

Thing is: I didn´t see this blank screen thing with 4.8-rc6 so far. And I did 
not have above EDID stuff in my log either. So I first wait whether I see 
blank screen again and if so, then know that a test would make sense. Maybe I 
see it before I complete a rc7 or rc8 (if there will be one), then I would 
include the patch of course.

-- 
Martin

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Thread

4.8-rc1: it is now common that machine needs re-run of xrandr after  resume Pavel Machek <pavel@ucw.cz> - 2016-09-13 22:30 +0200
  Re: 4.8-rc1: it is now common that machine needs re-run of xrandr after resume Martin Steigerwald <martin@lichtvoll.de> - 2016-09-13 22:50 +0200
    Re: 4.8-rc1: it is now common that machine needs re-run of xrandr  after resume Pavel Machek <pavel@ucw.cz> - 2016-09-14 09:50 +0200
      Re: 4.8-rc1: it is now common that machine needs re-run of xrandr after resume Jani Nikula <jani.nikula@linux.intel.com> - 2016-09-14 12:10 +0200
  Re: 4.8-rc1: it is now common that machine needs re-run of xrandr after resume Jani Nikula <jani.nikula@linux.intel.com> - 2016-09-14 09:40 +0200
    Re: 4.8-rc1: it is now common that machine needs re-run of xrandr after resume Jani Nikula <jani.nikula@linux.intel.com> - 2016-09-14 09:50 +0200
    Re: 4.8-rc1: it is now common that machine needs re-run of xrandr  after resume Pavel Machek <pavel@ucw.cz> - 2016-09-14 10:00 +0200
      Re: 4.8-rc1: it is now common that machine needs re-run of xrandr after resume Jani Nikula <jani.nikula@linux.intel.com> - 2016-09-14 11:20 +0200
        Re: 4.8-rc1: it is now common that machine needs re-run of xrandr after resume Jani Nikula <jani.nikula@linux.intel.com> - 2016-09-14 13:20 +0200
          Re: 4.8-rc1: it is now common that machine needs re-run of xrandr after resume Martin Steigerwald <martin@lichtvoll.de> - 2016-09-15 17:40 +0200
            Re: 4.8-rc1: it is now common that machine needs re-run of xrandr after resume Jani Nikula <jani.nikula@linux.intel.com> - 2016-09-16 09:00 +0200
        Re: 4.8-rc1: it is now common that machine needs re-run of xrandr after resume Martin Steigerwald <martin@lichtvoll.de> - 2016-09-14 13:40 +0200
  Re: [Intel-gfx] 4.8-rc1: it is now common that machine needs re-run  of xrandr after resume Chris Wilson <chris@chris-wilson.co.uk> - 2016-09-14 12:40 +0200

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