search

geoffreybennett / scarlett-gen2

Linux kernel source tree with additional Focusrite Scarlett and Clarett support ("Scarlett2 USB Protocol Mixer Driver")
185 stars 6 forks source link

USB Autosuspend #11

Closed lehmanju closed 2 months ago

lehmanju commented 2 months ago

I am on Fedora 40 Silverblue and my Scarlett Focusrite Solo Gen 3 stops working regularly. On Archlinux I had no problems but I think power management wasn't enabled there.

After waking up from sleep, dmesg shows that other devices are found and enabled again but not my audio interface.

geoffreybennett commented 2 months ago

Hi @lehmanju,

Thanks for your report! Does it only stop working after waking up from sleep? I'll see if I can reproduce the issue on my Fedora 40 system. In the meantime, if you wouldn't mind checking a few things...

Does dmesg say anything about the Scarlett during suspend/resume?

Can you check what sort of sleep is happening? What's the output from the following commands:

cat /sys/power/state
systemctl status sleep.target suspend.target hibernate.target hybrid-sleep.target

?

Can you reproduce the problem by doing systemctl suspend?

Also please check the .../power/control file for your Scarlett:

lsusb -t
grep . /sys/bus/usb/devices/*/power/control

Is it set to auto? If so, then (as root):

echo on > /sys/bus/usb/devices/.../power/control

and let me know if that makes any difference.

Thanks, Geoffrey.

lehmanju commented 2 months ago

Thanks for the quick reply. Oddly enough, it seems to work now for the time being after a reboot.

The issue I experienced did not relate directly to standby/wakeup. Rather, audio suddenly stopped working after a short period of playback. No error messages in dmesg/pipewire, everything showing normal playback but no sound anymore. It also happened after waking up from sleep that's why I suspected autosuspend/power management to be the culprit.

/power/control is already set to on for the audio interface.

I'd close this issue and reopen it if it happens again. Maybe it's a hardware issue with my USB hubs after all (already ordered a new one).

geoffreybennett commented 2 months ago

Could be a hub or cable problem then. Focusrite's recommendations are here: https://support.focusrite.com/hc/en-gb/articles/206849569-Can-I-use-any-USB-cable-with-my-Focusrite-USB-Interface https://support.focusrite.com/hc/en-gb/articles/207547015-Troubleshooting-audio-interface-issues

Good luck!