Using Thinkpad T495s with Ryzen 3500U, on Ubuntu Budgie 18.04. After upgrading to Kernel 5.3, I ran into black screen at login and general system instability, and lots of "failed to write reg ... wait reg ..." in dmesg. No issues when booting to Kernel 5.0.
Seems like there are several amdgpu firmeware upgrades in the past few week (https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux- firmware.git/log/). Followed these instructions (source: https://www.phoronix.com/scan.php?page=news_item&px=Ubuntu-19.10-Radeon- RX-5700): git clone git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git cd linux-firmware/ sudo cp -va amdgpu/ /lib/firmware/ sudo update-initramfs -u reboot After that, and I'm no longer seeing "failed to write reg ... wait reg ..." in dmesg, and system is generally more stable. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1838176 Title: Kernel 5.2.3 fails to fully boot on Lenovo 330s-15arr, black screen at login screen with cursor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1838176/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
