USB passthrough not working

[fiftyfourthparallel]

Possibly related to this:

Latest version of xen-hvm-stubdom-linux broke USB passthrough

I upgraded xen-hvm-stubdom-linux on a vanilla install of Qubes 4.1, rebooted, and now USB passthrough does not work at all. lsusb of dom0 shows no devices, and in sys-usb it only shows the hubs. Sorry. I’m new to bug reporting, and don’t know what exactly you need. What information/logs do you need from my machine?

I can’t comment in that thread since I’m not on the testing team, but I noticed that sys-usb no longer allows passthrough of inputs. On a fresh installation (updated) I tried editing /etc/qubes-rpc/policy/qubes.InputKeyboard and its mouse counterpart as per the documentation but it didn’t work.

I tried the sudo qubesctl state.sls qvm.usb-keyboard but it also didn’t work.

My USB input devices work fine even for LUKS until a sys-usb is started. (The fresh installation didn’t come with a sys-usb, by the way.) The input device notifications appear but the devices are unresponsive. Shutting down sys-usb doesn’t bring the devices back.

For reference I use a debian-11-minimal with only the following modifications:

1. qubes-usb-proxy installed

2. The usb controller attached with no strict reset set to ‘true’

3. Meminfo_writer off

4. Kernelopts set to include ‘iommu=soft swiotlb=8192’.

Any input (pun totally intended) would be greatly appreciated.

[alzer89]

@fiftyfourthparallel

input

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Just checking the obvious. You’re not using the unstable repo, right?

[fiftyfourthparallel]

I’m adventurous but not suicidal, so no

[51lieal]

I’ve reinstalling my laptop a week ago using 4.1 stable in qubes homepage, update everything to latest in current-testing repo, and configure sys-usb, and everything still work as expected.

I think you missing qubes-input-proxy-sender try install it.

[fiftyfourthparallel]

I’d love to try (I think it’s the right answer), but the new qrexec overhaul has me spinning in circles right now