there's a big rewrite of DP MST being done upstream https://patchwork.freedesktop.org/series/68359/
which is the last portion of it. You could try latest drm-tip mainline build from the mainline ppa to see if it's any better now. anyway, having 'fifo underrun' in dmesg can mean many things, and likely isn't the same cause for everyone on this bug, so I'm not sure it's useful to have a 3+ year old bug about it open. File a new bug if you still see it with the latest Ubuntu release and/or upstream kernel. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1550779 Title: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1550779/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
