Can you get a dmesg or journalctl log from one of the failed boots? It's also worth testing your `amdgpu.dcdebugmask=0x10` suggestion.
Can you replicate this on the 7.0 mainline kernel? You can find the .debs here: https://kernel.ubuntu.com/mainline/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2169805 Title: [7.0.0-38] amdgpu: DMUB/DMCUB errors + intermittent black screen on boot on Lenovo IdeaPad Slim 3 15AHP10 (HawkPoint1 1002:1900) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2169805/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
