February 7, 2020 6:00 AM, zachm1...@gmail.com wrote: > I have a Thinkpad T495 with an AMD Ryzen Pro 3700U and Vega 10 graphics. > Everything seems to be > working besides suspend/resume which is crucial for me since I'm on the go a > lot. I had to build my > own Qubes R4.0 ISO to get the installer to work due to it needing a 5.0+ > kernel for the graphics > driver. I installed `kernel-latest` from qubes-dom0-current testing but still > didn't work. After > trying every kernel option on the face of this Earth I decided to use an > experimental Qubes R4.1 > build as some things were pointing to dom0 Fedora 25 being the issue. On dom0 > Fedora 31 it's still > an issue with a 5.4 kernel. Has been driving me nuts as I've spent almost the > whole day trying to > figure the issue out. > > When I suspend, it clearly suspends but when I open it back up the screen is > off but the power LED > is on. I can hear the fan spin up for a bit but nothing happens. CTRL + ALT + > Backspace does > nothing. I also tried switching to text mode before suspending with CTRL + > ALT + F2. Nothing... I > also disabled the compositor in XFCE to give it a try in both R4.0 and R4.1, > no difference. It > totally seems like an X server or amdgpu issue but I really don't know what > to do. > > I don't have any VMs running when I test the suspend and I don't have a > sys-usb VM to take that out > of the equation. Any ideas? I'm scratching my head over here and I'm at a > loss on what to try next. >
Did you try the Xen power.c patch? It sounds like a Xen panic. Some or all AMD Fam15h processors change their CPUID feature bits after resume, which triggers a Xen panic (LEDs and fans on, screen off, keyboard and power button unresponsive). There is a patch and instructions towards the end of this thread: https://www.mail-archive.com/qubes-users@googlegroups.com/msg31517.html - It takes some work but it sounds very likely it will fix your problem. Sys-usb causes other problems on a lot of Ryzen machines, so continue to keep it disabled for now. It doesn't sound like a graphics problem. Usually X or amdgpu issues result in the screen's backlight coming on but displaying a blank screen, and often the keyboard is responsive just not the screen. At least in my experience. PS: when replying to mailing lists please write your response *below* the quoted text you're replying to. -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/929c8ac5e136abf7258a1c91d6f58fae%40disroot.org.
