Lost GPU acceleration and can't find any errors

Affected is video playback, webGL in chromium and anything 3D.

With video playback (mpv) i just get an A/V desynchronization error and it plays with less then 1fps. When i switch to -vo xv or x11 it plays fine.

WebGL (such as google maps in chromium) is also very slow or freezing. 3D-Stuff (i tried quake) is the same.

I have no errors in xorg.0.log (except vesa and fbdev module missing) or glxinfo, amdgpu is loaded.

I booted the previous kernel and it’s the same.

When i boot a manjaro live-usb stick acceleration works fine.

Im running a 4-display setup, 2 displays on the internal iGPU (i7-4790) and 2 displays on the Radeon rx-460.

I can move the windows around and everything is fine on the internal GPU or stops working on the radeon.

I’m running manjaro unstable.

Thank you for any advice.

[Zzzz sascha]# dmesg | grep EE
[    0.000000] Linux version 5.19.11-1-MANJARO (builduser@fv-az173-196) (gcc (GCC) 12.2.0, GNU ld (GNU Binutils)     2.39.0) #1 SMP PREEMPT_DYNAMIC Fri Sep 23 14:31:33 UTC 2022
[    1.637704] audit: type=1130 audit(1664017281.749:10): pid=1 uid=0 auid=4294967295 ses=4294967295     msg='unit=systemd-fsck@dev-disk-by\x2duuid-48C3\x2dE2EE comm="systemd" exe="/usr/lib/systemd/systemd"         hostname=? addr=? terminal=? res=success'
[    1.968230] at24 0-0050: 256 byte spd EEPROM, read-only
[    1.969400] at24 0-0051: 256 byte spd EEPROM, read-only
[    1.970053] at24 0-0052: 256 byte spd EEPROM, read-only
[    1.970708] at24 0-0053: 256 byte spd EEPROM, read-only

[Zzzz sascha]# cat /var/log/Xorg.0.log | grep EE
[     3.857] Current Operating System: Linux Zzzz 5.19.11-1-MANJARO #1 SMP PREEMPT_DYNAMIC Fri Sep 23 14:31:33 UTC 2022 x86_64
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[     3.920] (EE) Failed to load module "fbdev" (module does not exist, 0)
[     3.920] (EE) Failed to load module "vesa" (module does not exist, 0)
[     5.384] (II) Initializing extension MIT-SCREEN-SAVER
[  1522.866] (EE) event20 - HID 046a:0011: client bug: event processing lagging behind by 25ms, your system is too slow
[  2039.467] (EE) event20 - HID 046a:0011: client bug: event processing lagging behind by 26ms, your system is too slow
[  2503.396] (EE) event20 - HID 046a:0011: client bug: event processing lagging behind by 21ms, your system is too slow
[  2719.884] (EE) event20 - HID 046a:0011: client bug: event processing lagging behind by 26ms, you