[Bug 58876] [GM45 DP-DVI dongle regression] transient failure to read EDID (fbcon fails then X works)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=58876

--- Comment #44 from andreas.sturmlechner at gmail.com ---
Created attachment 108073
  --> https://bugs.freedesktop.org/attachment.cgi?id=108073&action=edit
20141019-2125_3.17.0-rc7+_dmesg-stop-ON.log (drm.debug=6)

I couldn't get any output on the external display in weeks, but today I
accidentally used drm.debug=6 instead of 0xe, and suddenly there's a screen
working as intended. And indeed, switching back and forth from these two debug
settings, it either works or not. Oh fun... ;)

As a side note, the above mentioned 'No connectors reported' message is
triggered by my trusty old (default) kernel param i915.panel_ignore_lid=0, so
no change actually.

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