Hello, I have an XPS9310 and I'm in a very similar situation with AX500. 
Any news there?

Also, audio does not work. I'm running qubes 4.0.4 and It used to work 
until I upgraded to kernel 5.10.13-1. I have absolutely no experience with 
kernel building, any possible further detail you could share about what you 
did to make audio work would be super appreciated!

On Sunday, January 10, 2021 at 6:06:24 AM UTC+1 fac...@gmail.com wrote:

> 4.0.4 or 4.0.4rc1 would not install (tried all the workarounds).   4.1 
> alpha installed no problems, no special boot options it just worked.
>
> Upgraded to kernel latest, which fixed bluetooth and some performance.    
> Needed to give sys-usb more RAM to function properly (otherwise 
> keyboard/mouse would lag when started usb network).
>
> I built a custom kernel for latest intel sound drivers and Qualcomm wifi6 
> (linux-kernel.patch attached).
>
> Works:
> Everything except wifi works.
> Touchscreen sort of works (acts like a tablet input)
> Bluetooth works.
> Audio works (with kernel 5.10 and attached kernel base-config patch  + 
> latest 1.6.1 sof-bin firmware https://github.com/thesofproject/sof-bin 
> and alsa-ucm-config files.   see 
> https://blog.fts.scot/2020/07/04/dell-xps-2020-how-to-get-audio-working-on-linux/
>  
> for alsa ucm config ).
>
> Does not work:
> Qualcomm AX500 wifi.   I have the latest firmware and it works fine on 
> bare metal fedora 33.   However, with Qubes, the xen pci passthrough is not 
> working.   Here is the error from the sys-net qube dmesg:
> [    5.706045] ath11k_pci 0000:00:06.0: WARNING: ath11k PCI support is 
> experimental!
> [    5.706448] ath11k_pci 0000:00:06.0: BAR 0: assigned [mem 
> 0xf2000000-0xf20fffff 64bit]
> [    5.734248] ath11k_pci 0000:00:06.0: failed to get 32 MSI vectors, only 
> -28 available
> [    5.734289] ath11k_pci 0000:00:06.0: failed to enable msi: -28
> [    5.736589] ath11k_pci: probe of 0000:00:06.0 failed with error -28
> I have tried permissive, no reset etc.   I even tried the latest ath11k 
> driver from the 5.11 kernel but no luck getting it to work with xen pci 
> passthrough.
>
> There is a TPM 2.0 module which the kernel appears to see but HCL report 
> doesn't?
>
>

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