Troubleshooting newer hardware

By default, the kernel that is installed in dom0 comes from the kernel package, which is an older Linux LTS kernel. For most cases this works fine since the Linux kernel developers backport fixes to this kernel, but for some newer hardware, you may run into issues. For example, the audio might not work if the sound card is too new for the LTS kernel.

To fix this, you can try the kernel-latest package - though be aware that it’s less tested! In dom0:

sudo qubes-dom0-update kernel-latest

Reboot when it’s done installing. You can double-check that the boot used the newer kernel with uname -r, which prints the version of the currently-running kernel. Compare this with the output of rpm -q kernel. If the start of uname -r matches one of the versions printed by rpm, then you’re still using the Linux LTS kernel, and you’ll probably need to manually fix your boot settings. If uname -r reports a higher version number, then you’ve successfully booted with the kernel shipped by kernel-latest.