[Bug 80896] [BDW Regression]dmesg error "<3>[ 1.954836] [drm:gen8_irq_handler] *ERROR* The master control interrupt lied (SDE)!" after boot

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Oct 12 03:28:29 PDT 2015


https://bugs.freedesktop.org/show_bug.cgi?id=80896

--- Comment #15 from Kim Carlsen <kimc at operamail.com> ---
(In reply to Kim Carlsen from comment #14)
> Created attachment 118836 [details]
> The master control interrupt lied
> 
> kernel output on a 
> Lenovo X1 Carbon (3rd gen) connected to a lenovo onelink pro dock

Outputting 2560x1440 at 60 works fine, outputting 3840x2160 at 60 produces no picture
on external monitor. 

When removing the onelink prodock and connecting the dp cable directly to the
laptop then all resolutions works (3840x2160 at 60).

Whenever running xrandr it adds 36 lines to kernel log of 'The master control
interrupt lied'

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