my big dream to work completely on Qubes is within reach.
For the work I need programs that need to be accelerated on the hardware side.
Amd ryzen 7 5800x
rog strix x570-F gaming
amd radeon rx 580 (1. gpu)
amd radeon rx vega 64 (2. gpu)
2*32 GB ddr4 ram
1tb m2 ssd
If necessary I can provide more system specs.
Since the attempt to install qubes 4.0.3 failed because of a blackscreen at boot time I use qubes 4.1 (Signed Q4.1 alpha iso).
I would like to detach the 2nd GPU from dom0 and assign to a hvm.
I have read various guides and failed with all of them.
In detail I wonder what went wrong with https://groups.google.com/g/qubes-users/c/zHmaZ3dbus8/m/rWll-ywQCAAJ:
I first got the device id for my second GPU:
[user@dom0 ~]$ qvm-pci ... dom0:0c_00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Vega 10 XL/XT [Radeon RX Vega 56/64] dom0:0c_00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Vega 10 HDMI Audio [Radeon Vega 56/64] ...
Then edit grub: (I tried both parameters xen-pciback.hide=(0c:00.0)(0c:00.1) and rd.qubes.hide_pci=0c:00.0,0c:00.1) individually and together.)
[user@dom0 ~]$ sudo vim /etc/default/grub GRUB_TIMEOUT=5 GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true GRUB_TERMINAL_OUTPUT="gfxterm" GRUB_CMDLINE_LINUX="rd.luks.uuid=luks-1b2813e0-e5fd-4dfb-84ad-400aa8f4504f rd.lvm.lv=qubes_dom0/root rd.lvm.lv=qubes_dom0/swap plymouth.ignore-serial-consoles rd.driver.pre=btrfs rhgb quiet xen-pciback.hide=(0c:00.0)(0c:00.1) rd.qubes.hide_pci=0c:00.0,0c:00.1 modprobe=xen-pciback.passthrough=1 xen-pciback.permissive" GRUB_DISABLE_RECOVERY="true" GRUB_THEME="/boot/grub2/themes/qubes/theme.txt" GRUB_CMDLINE_XEN_DEFAULT="console=none dom0_mem=min:1024M dom0_mem=max:4096M ucode=scan smt=off gnttab_max_frames=2048 gnttab_max_maptrack_frames=4096" GRUB_DISABLE_OS_PROBER="true" [user@dom0 ~]$ sudo grub2-mkconfig -o /boot/grub2/grub.cfg [user@dom0 ~]$ reboot
Since the guide uses an Intel processor, I can’t check this 1:1, but here is the output.
[user@dom0 ~]$ xl dmesg
xl-dmesg-output.log (9.0 KB)
So far so good, but then somehow only the vga device is assignable and not the sound device.
[user@dom0 ~]$ xl pci-assignable-list
I just went ahead and assigned the GPU (both 0c:00.0,0c:00.1 only taking 0c:00.0 results in a driver reset conflict) to the hvm via the qubes manager gui.
Nothing happens at startup, only that the computer slowly freezes. The qrexec seem to be broken. Here are the logs:
I would really appreciate help, but I also know that you have a lot to do. That’s why I would be willing to donate $100 to Qubes if a solution works
Edit: According to some guides I need to edit the hvm kernel, but I have no idea where to start…