[Bug 91137] New: System randomly suspends thinking the lid was closed

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91137

            Bug ID: 91137
           Summary: System randomly suspends thinking the lid was closed
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/intel
          Assignee: chris at chris-wilson.co.uk
          Reporter: nalimilan at club.fr
        QA Contact: intel-gfx-bugs at lists.freedesktop.org

Created attachment 116769
  --> https://bugs.freedesktop.org/attachment.cgi?id=116769&action=edit
journalctl -b -a

Since I've upgraded from Fedora 21 to 22, my system sometimes suspends without
any reason, even when active. I suspect the issue might come from the Intel
graphics driver because of this excerpt of the system log, obtained with
drm.debug=14 (see full log attached):

juin 28 21:19:28 milan kernel: [drm:intel_lvds_detect] [CONNECTOR:26:LVDS-1]
juin 28 21:19:28 milan systemd-logind[686]: Lid closed.
juin 28 21:19:28 milan kernel: [drm:intel_dp_detect] [CONNECTOR:42:DP-1]
juin 28 21:19:28 milan kernel: [drm:intel_hdmi_detect] [CONNECTOR:37:HDMI-A-1]
juin 28 21:19:28 milan kernel: [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] NAK for
addr: 0050 w(1)
juin 28 21:19:28 milan kernel: [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] NAK on
first message, retry
juin 28 21:19:28 milan kernel: [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] NAK for
addr: 0050 w(1)
juin 28 21:19:28 milan kernel: [drm:drm_do_probe_ddc_edid] drm: skipping
non-existent adapter i915 gmbus dpc
juin 28 21:19:28 milan kernel: [drm:intel_lvds_detect] [CONNECTOR:26:LVDS-1]
juin 28 21:19:28 milan kernel: [drm:intel_crt_detect] [CONNECTOR:34:VGA-1]
force=1
juin 28 21:19:28 milan kernel: [drm:intel_ironlake_crt_detect_hotplug] ironlake
hotplug adpa=0xf40000, result 0
juin 28 21:19:28 milan kernel: [drm:intel_crt_detect] CRT not detected via
hotplug
juin 28 21:19:28 milan kernel: [drm:gmbus_xfer] GMBUS [i915 gmbus vga] NAK for
addr: 0050 w(1)
juin 28 21:19:28 milan kernel: [drm:gmbus_xfer] GMBUS [i915 gmbus vga] NAK on
first message, retry
juin 28 21:19:28 milan kernel: [drm:gmbus_xfer] GMBUS [i915 gmbus vga] NAK for
addr: 0050 w(1)
juin 28 21:19:28 milan kernel: [drm:drm_do_probe_ddc_edid] drm: skipping
non-existent adapter i915 gmbus vga
juin 28 21:19:28 milan kernel: [drm:intel_crt_get_edid] CRT GMBUS EDID read
failed, retry using GPIO bit-banging
juin 28 21:19:28 milan kernel: [drm:intel_gmbus_force_bit] enabling bit-banging
on i915 gmbus vga. force bit now 1
juin 28 21:19:28 milan kernel: [drm:drm_do_probe_ddc_edid] drm: skipping
non-existent adapter i915 gmbus vga
juin 28 21:19:28 milan kernel: [drm:intel_gmbus_force_bit] disabling
bit-banging on i915 gmbus vga. force bit now 0
juin 28 21:19:28 milan kernel: [drm:intel_crt_detect_ddc] CRT not detected via
DDC:0x50 [no valid EDID found]
juin 28 21:19:28 milan systemd-logind[686]: Suspending...
juin 28 21:19:28 milan kernel: [drm:intel_dp_detect] [CONNECTOR:42:DP-1]
juin 28 21:19:28 milan kernel: [drm:intel_hdmi_detect] [CONNECTOR:37:HDMI-A-1]

This is with kernel 4.0.6 and xorg-x11-drv-intel 2.99.917-12.20150615.fc22. No
external monitor was plugged at any point. I have set acpi_backlight=vendor --
if that makes any difference I can try without.

My card is an Ironlake Mobile:
Intel Corporation Core Processor Integrated Graphics Controller [8086:0046]
(rev 02)

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