The same issue on my Lenovo T14s, frequently hanging after suspend. I'm using Ubuntu 20.04, with HWE kernel version 5.8.0-40-generic. I have two external monitors with 1980x1080 res, connected through a 2xHDMI to USB-C connector using DisplayLink.
This is really annoying! Are there any efforts being made to provide definitive root cause analysis and ship the solution into an upcoming kernel version? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1872760 Title: i915 - after return from suspend display is flickering / *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1872760/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
