On 2017-12-10, Vagrant Cascadian wrote: > Since upgrading to 4.9.65-3, my screen occasionally starts rapidly > scrolling sideways, flashing on and off repeatedly... ... > When this starts to happen, usually there is a log in the dmesg output > like this: > > [drm:gen8_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun ... > I'm going to try to find the last kernel version before I upgraded and > see if I the issue is also triggered on that... Have been running 4.9.51-1 without issue today, so it seems like it really was introduced in 4.9.65-3. Also tried a 4.13.x kernel from stretch-backports, which seemed to have the same issue (though *maybe* less severe)... So I'm guessing some fix/feature was backported to 4.9 that triggers this problem. live well, vagrant
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