Bug#974581: np longer able to set native resolution of Dell U3014
Given some other experiences with amdgpu modesetting problems, and looking at this bug, I would say:- 1) Please try updating all packages and reboot and try again, kernel should be now 4.19.0-16 2) Secondly, enable backports https://backports.debian.org/Instructions/ and then:- apt-get -t buster-backports install linux-image-amd64 linux-headers-amd64 This should get you a 5.10 series kernel. My strong experience with amdgpu has been that a whole lot of modesetting, sleep, etc etc. issues are massively improved in 5.10 kernel series of late, irrespective of the xserver-xorg version in use. NB: At boot-time, in normal cases, GRUB menu should allow you to 'select' which kernel you boot into i.e you should be able to select between 5.10.0.bpo.?? and 4.19.0-16 kernel. I note, the backports kernel is lagging behind a little, hopefully 5.10.0-0.bpo.6 and 5.10.0-0.bpo.7 will come out soon. --Simon
Bug#892982: system freeze after lock screen/switched off moniturs/spontaneously
I have had first-hand experience of these Xorg crashes and lockups in combination with either sleep or un-powering monitors. I would 100% agree with Hermann that this is highly likely to be improved with kernel update. In short, I would go to *at least* the buster-backports kernel i.e. https://backports.debian.org/Instructions/ apt-get -t buster-backports install linux-image-amd64 linux-headers-amd64 Over the recent 5.10 debian kernel provisions, I have seen incremental improvement in this issue, to the point that now this seems to have gone away. I still experience complex MST monitor arrangement reordering the displayport- virtual numbers (fixed with xrandr script) but NO LONGER crashes needing reboot or restart-X11 like before... In any case, please report back how 5.10 series kernel does/does-not avoid the issue occuring for you. --Simon p.s. The buster-backports kernel [5.10.0-0.bpo.5-amd64] is lagging behind a little. Hopefully .bpo.6 and .bpo.7 will come out soon. I notice debian-deriv MXlinux have put out their own 5.10.0-7mx kernel already.
Bug#942318: xserver-xorg-video-amdgpu: VGA output is not detected in Radeon R7 (Carrizo) only the HDMI works. Motherboard MSI A68HM-E33 v2
I can say, I understood a limitation of amdgpu kernel driver has been not supporting VGA/analogue outputs in some (or all?) cases. I understood this is part of the reason it is not the default driver over radeon for some cards. However, given many other other experiences and bugreports with amdgpu modesetting problems, and looking at this bug, I would recommend trying newer kernel in buster:- enable backports https://backports.debian.org/Instructions/ apt-get -t buster-backports install linux-image-amd64 linux-headers-amd64 This should get you a 5.10 series kernel which could well behave better for you (let us know!). --Simon p.s. the backports kernel is lagging behind a little, hopefully 5.10.0-0.bpo.6 and 5.10.0-0.bpo.7 will come out soon.
Bug#900087: AMD RX 550 often locks up
I would generally say this looks like problems more in kernel and firmware land, than bugs in the xserver driver to me... I would, generally note a lot of wider AMD instability/issues (that Alan) talks about improved a lot in 5.8-ubuntu and 5.10-debian (bullseye and buster-backports) kernels. Even 5.4-ubuntu kernels still have problem with some newer Ryzen systems. In short, I'd recommend testing debian buster-backports version of linux-image-amd64 linux-headers-amd64 and report back on this bug. In particular -- can this bug now be closed, anyhow? How could debian warn users to update BIOS/firmware? --Simon
