Camera reset fails on Dell XPS 9315

[gaul]

I tried to follow the Hans de Goede's instructions but the driver cannot reset the hardware:

[   11.336391] intel_vsc intel_vsc: hw_reset failed ret = -22
[   11.377183] intel_vsc intel_vsc: hw_reset failed ret = -22
[   11.415463] intel_vsc intel_vsc: hw_reset failed ret = -22
[   11.415493] intel_vsc intel_vsc: reset: reached maximal consecutive resets: disabling the device
[   11.415502] intel_vsc intel_vsc: reset failed ret = -19
[   11.415506] intel_vsc intel_vsc: link layer initialization failed.
[   11.415509] intel_vsc intel_vsc: error -ENODEV: init hw failed

I am using the upstream version of the driver using kernel 6.11.2-300.fc41.x86_64. Previously I installed the closed-source driver but I believe that I removed all traces of this. Any suggestions on how I can address this problem?

[twouters]

Same, but slightly different output on my XPS 9315

# dmesg -T | grep vsc
[Tue Oct  8 13:14:23 2024] vsc-tp spi-INTC1094:00: wait rom failed ret: -110
[Tue Oct  8 13:14:23 2024] intel_vsc intel_vsc: hw_reset failed ret = -110
[Tue Oct  8 13:14:24 2024] vsc-tp spi-INTC1094:00: wait rom failed ret: -110
[Tue Oct  8 13:14:24 2024] intel_vsc intel_vsc: hw_reset failed ret = -110
[Tue Oct  8 13:14:24 2024] vsc-tp spi-INTC1094:00: wait rom failed ret: -110
[Tue Oct  8 13:14:24 2024] intel_vsc intel_vsc: hw_reset failed ret = -110
[Tue Oct  8 13:14:24 2024] intel_vsc intel_vsc: reset: reached maximal consecutive resets: disabling the device
[Tue Oct  8 13:14:24 2024] intel_vsc intel_vsc: reset failed ret = -19
[Tue Oct  8 13:14:24 2024] intel_vsc intel_vsc: link layer initialization failed.
[Tue Oct  8 13:14:24 2024] intel_vsc intel_vsc: error -ENODEV: init hw failed

Maybe the difference is caused by booting from an F41 nightly built live image (Fedora-Workstation-Live-x86_64-41-20241006.n.0.iso)

On Arch Linux there's much less info, maybe Fedora patched the kernel with some additional debugging

[   12.665856] vsc-tp spi-INTC1094:00: probe with driver vsc-tp failed with error -22

[jwrdegoede]

I have been trying to reproduce this on a Dell XPS 13 9320, but I only hit this sporadically and only when doing a cold boot (boot after poweroff and then wait 15 min before powering up again).

For me a reboot pretty much always clears these errors. Note I'm not saying that we should not fix them , but without a good reproducer this is going to be hard to fix.

@gaul, @twouters does this always happen to you, as in you get these errors every boot even if you reboot a couple of times ?

[twouters]

For me, it happens every reboot.

I did boot from Ubuntu in between, and the camera works/worked in Ubuntu 24.04.
I'm not able to troubleshoot at this time and forgot the last successful Ubuntu kernel version I've booted. I'll post an update on this later.

[jwrdegoede]

For me, it happens every reboot.

Ah I just noticed this bit in your prior comment:

On Arch Linux there's much less info, maybe Fedora patched the kernel with some additional debugging

[ 12.665856] vsc-tp spi-INTC1094:00: probe with driver vsc-tp failed with error -22

Yeah so that is a different error. -22 is -EINVAL. I'm not sure where that is coming from, but I guess it has something to do with some other needed driver not being enabled in Arch's kernel config.

Can you attach Arch's kernel config here?

[twouters]

I've shutdown my laptop for 15 minutes, with detached AC adapter and booted Fedora from a USB flash drive a few times and the above errors occurred on every boot.

Eventually rebooted into Ubuntu with 6.8.0-47.47-generic where the webcam works, but I'm not sure if this version uses the upstream ivsc driver.

dmesg.ubuntu.txt

Rebooted into Fedora afterwards and it still shows the same errors.

[gaul]

My understanding is that the 9315 and 9320 have different cameras despite being released around the same time. I can provide more debugging info from Fedora 41 if it helps.