Created attachment 1662981 [details] dmesg Does the Bug Radeon persist even with Kernel 5.4.18 when it will be solved allowing the driver to boot correctly ? [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, trying to reset the VCPU!!! [ 66.027338] [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, trying to reset the VCPU!!! [ 67.047516] [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, trying to reset the VCPU!!! [ 68.067686] [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, trying to reset the VCPU!!! [ 69.087879] [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, trying to reset the VCPU!!! [ 70.108070] [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, trying to reset the VCPU!!! [ 71.128240] [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, trying to reset the VCPU!!! [ 72.148409] [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, trying to reset the VCPU!!! [ 73.168580] [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, trying to reset the VCPU!!! [ 74.188755] [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, trying to reset the VCPU!!! [ 74.208771] [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, giving up!!! [ 74.208776] radeon 0000:04:00.0: failed initializing UVD (-1).
But at least on kernel 5.5 problem has been fixed given that bugs reoccur every time the 5.4 kernel is released???
Bug in linux-firmware, not in kernel. Arch linux fixed here: https://bugs.archlinux.org/task/65363?string=UVD&project=1&type%5B0%5D=&sev%5B0%5D=&pri%5B0%5D=&due%5B0%5D=&reported%5B0%5D=&cat%5B0%5D=&status%5B0%5D=&percent%5B0%5D=&opened=&dev=&closed=&duedatefrom=&duedateto=&changedfrom=&changedto=&openedfrom=&openedto=&closedfrom=&closedto=
Else you can downgrade linux-firmware: yum downgrade linux-firmware
UPD: downgrade not help
Thanks for the update, will reassign to linux-firmware.
*** Bug 1811090 has been marked as a duplicate of this bug. ***
Now back to Windows,too many last kernel problems with that graphics card and you that bug was communicated very promptly for each release!!!! For now I need Photoshop, maybe I will try Again Fedora after summer hoping that by then it has solved some Bugs that on economic Notebooks bring many problems!!!!
I also see that on [AMD/ATI] Mars XTX [Radeon HD 8790M]. It started showing up in mid Feb, when I upgraded the kernel to 5.4.18-200.fc31.x86_64 and later, but I agree it's probably due to linux-firmware changes, not kernel. It can be mitigated by adding radeon.modeset=0 to the kernel commandline in /etc/defaults/grub followed by grub2-mkconfig I also tried directly disabling features in the driver, per advice from Ubuntu cat > /etc/modprobe.d/radeon.conf options radeon vce=0 but it didn't work (VCE is not a problem, UVD is). Somewhere else I saw a patch that allowed no_uvd=1 but I wasn't sure if it went mainline, so I didn't even try it
Fixed in the 20200316 release