Hubert Hesse, to confirm this is resolved for you in Ubuntu, could you please either upgrade your 16.04 enablement stack as per https://wiki.ubuntu.com/Kernel/LTSEnablementStack or test http://cdimage.ubuntu.com/daily-live/current/ and advise to the results?
** Tags removed: bios-outdated-1.42 ** Tags added: bios-outdated-1.46 ** Summary changed: - [i915]] *ERROR* CPU pipe A FIFO underrun - Xorg glitches + [Lenovo ThinkPad X220] *ERROR* CPU pipe A FIFO underrun - Xorg glitches ** Attachment removed: "shaju personal.ods" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1550779/+attachment/5224082/+files/shaju%20personal.ods ** Attachment removed: "Syslog from my failed attempt to log in." https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1550779/+attachment/4740111/+files/syslog.error -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1550779 Title: [Lenovo ThinkPad X220] *ERROR* CPU pipe A FIFO underrun - Xorg glitches To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1550779/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs