wluma: [Bug]: ALS.webcam makes webcam hang

Steps for reproducing the issue

• install a distro using gnome
• run wluma as a user systemd service file
• put computer to sleep

What is the buggy behavior?

upon waking up webcam starts behaving weirdly, very.

• Before sleep the webcam light was blinking for a couple of milliseconds every second, now it’s constantly on.
• Wluma thinks it’s really bright, and enables outdoors brightness mode, even if I cover the camera with my finger.
• Accessing the webcam from any other app (including ffplay /dev/video0 shows nothing but a 720p black screen.
• Stopping wluma does not fix the webcam, the light is still on and the video is still a malevich square.
• if I reboot, nothing changes, the issue persists. Light doesn’t even go off.
• If I shutdown the laptop completely, and boot back up the light is off, BUT;
• After a shutdown, as soon as I try using the webcam is gets back to showing nothing but a black screen with the light constantly on, even if I’m not using the webcam. ffplay returns NaN instead of a video stream.

What is the expected behavior?

Well perhaps wluma should not murder my webcam.

Logs

vega@dart ~/s/w/t/release [SIGINT]> RUST_LOG=debug ./wluma
[2022-02-01T06:03:12Z DEBUG wluma] Using Config {
        als: Webcam {
            video: 0,
            thresholds: {
                45: "normal",
                15: "dark",
                75: "outdoors",
                60: "bright",
                30: "dim",
                0: "night",
            },
        },
        output: [
            Backlight(
                BacklightOutput {
                    name: "eDP-1",
                    path: "/sys/class/backlight/intel_backlight",
                    capturer: None,
                    min_brightness: 1,
                },
            ),
        ],
    }
[2022-02-01T06:03:12Z INFO  wluma] Continue adjusting brightness and wluma will learn your preference over time.
MESA-INTEL: warning: Performance support disabled, consider sysctl dev.i915.perf_stream_paranoid=0

libv4l2: error setting pixformat: Input/output error
libv4l2: error setting pixformat: Input/output error

Version

version 4.1.0, from the built artifact in releases folder

Environment

default command doesn't work, so here's information from neofetch, I guess.

             .',;::::;,'.                vega@dart 
         .';:cccccccccccc:;,.            --------- 
      .;cccccccccccccccccccccc;.         OS: Fedora Linux 35.20220125.0 (Silverblue) x86_64 
    .:cccccccccccccccccccccccccc:.       Host: Notebook NS50MU 
  .;ccccccccccccc;.:dddl:.;ccccccc;.     Kernel: 5.15.16-200.fc35.x86_64 
 .:ccccccccccccc;OWMKOOXMWd;ccccccc:.    Uptime: 1 day, 7 hours, 3 mins 
.:ccccccccccccc;KMMc;cc;xMMc;ccccccc:.   Packages: 1432 (rpm), 101 (flatpak) 
,cccccccccccccc;MMM.;cc;;WW:;cccccccc,   Shell: fish 3.3.1 
:cccccccccccccc;MMM.;cccccccccccccccc:   Resolution: 1920x1080 
:ccccccc;oxOOOo;MMM0OOk.;cccccccccccc:   DE: GNOME 41.3 (Wayland) 
cccccc;0MMKxdd:;MMMkddc.;cccccccccccc;   Theme: Adwaita-dark [GTK2/3] 
ccccc;XM0';cccc;MMM.;cccccccccccccccc'   Icons: Adwaita [GTK2/3] 
ccccc;MMo;ccccc;MMW.;ccccccccccccccc;    Terminal: gnome-terminal 
ccccc;0MNc.ccc.xMMd;ccccccccccccccc;     CPU: 11th Gen Intel i7-1165G7 (8) @ 4.700GHz 
cccccc;dNMWXXXWM0:;cccccccccccccc:,      GPU: Intel TigerLake-LP GT2 [Iris Xe Graphics] 
cccccccc;.:odl:.;cccccccccccccc:,.       Memory: 6620MiB / 31889MiB 
:cccccccccccccccccccccccccccc:'.
.:cccccccccccccccccccccc:;,..                                    
  '::cccccccccccccc::;,.