I can confirm that reverting to linux-firmware:amd64=1.173.12 with kernel 5.3.0-40-generic on Xubuntu 18.04.4 solved my problem.
Workaround with kernel parameter "radeon.modeset=0 rd.driver.blacklist=radeon" removed error messages but caused fan to work constantly when watching e. g. youtube in chrome. Using Samsung ativbook 730U3E with display controller: Advanced Micro Devices, Inc. [AMD/ATI] Mars [Radeon HD 8730M] Regards Peter -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1865130 Title: [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, trying to reset the VCPU!!! To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1865130/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
