Created attachment 116362 dmesg.txt (In reply to Ander Conselvan de Oliveira from comment #3) > Probably a duplicate of bug 90508. Could you give the patch referenced there > a try?
Bug #90508 is fixed in kernel-4.0.4-301. I'm using kernel-4.0.4-303 and I still got that issue. Fedora 22 Workstation, x86_64. After VT switch to X, I got this: [ 5427.787710] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1409133 Title: Heavy black flickering with Intel graphics after VT switching from X to Mir To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1409133/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
