On Fri, 29 Dec 2017, Jiri Kosina wrote: > When I dock my thinkpad x270 [1] and run xrandr --auto, image correctly > appears on external display. > [1] 00:02.0 VGA compatible controller: Intel Corporation Skylake GT2 [HD Graphics 520] (rev 07) > After undocking and docking again, the image on external display doesn't > appear any more, and this pops up in dmesg > > [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun > > After restarting X (no need to reboot), I am able to dock again and get > image on external display. > > I don't think this is a regression, I tried a few older kernels up to > something around 4.11, and nothing worked. Forgot to mention: I'm observing this on (and up to) 4.15-rc5 Thanks, -- Jiri Kosina SUSE Labs _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
