Since I'm also facing this bug I just want to confirm that the error also occurs on the latest mainline Kernel (5.1) and also on the current drm-tip kernel version (5.1.0.0994 from https://kernel.ubuntu.com /~kernel-ppa/mainline/drm-tip/2019-05-05/)
I'm trying to use an additional monitor on my X380 Yoga using an USB-C Dock. During the boot process the error message appears: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO After the boot process the monitor is sometimes enabled, but only a couple of seconds. -- 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
