Strange observation - to save my eyes from the strain of looking at the old laptop's screen, I hooked up a monitor over VGA - and the stalls stopped (on both the tested 16.04 and on 18.04!! The message is still there in dmesg, so this had the positive effect of cutting down the time to find "first bad kernel" drastically.
I tested on latest 16.04, and the first kernel with the "vblank wait timed out on crtc 0" message is 4.6-rc1; 4.5-rc7 is OK. I will upload dmesg logs shortly. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1685442 Title: Errors: flip_done timed out during boot-up; slow boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1685442/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
