Ok looks like I’m yet another Manjaro user facing this issue 
My laptop webcam does not get detected after the latest update. I’ve tried rebooting couple of times, not help.
Here are some outputs of the commands I used:
inxi -Fazy result:
system info
System:
Kernel: 5.17.1-3-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 11.2.0
parameters: BOOT_IMAGE=/boot/vmlinuz-5.17-x86_64
root=UUID=41e5b7b1-2fcc-46ac-a809-55b6ce116089 rw quiet
resume=UUID=f2530063-c444-43b1-bd74-4a5321932a40
Desktop: GNOME v: 41.5 tk: GTK v: 3.24.33 wm: gnome-shell dm: GDM v: 41.3
Distro: Manjaro Linux base: Arch Linux
Machine:
Type: Laptop System: Acer product: Predator PH315-51 v: V1.24
serial:
Mobo: CFL model: Sienta_CFS v: V1.24 serial:
UEFI: Insyde v: 1.24 date: 12/05/2018
Battery:
ID-1: BAT1 charge: 22.6 Wh (78.2%) condition: 28.9/48.9 Wh (59.1%)
volts: 15.2 min: 15.2 model: LG PABAS0241231 type: Li-ion serial:
status: discharging
CPU:
Info: model: Intel Core i5-8300H bits: 64 type: MT MCP arch: Coffee Lake
family: 6 model-id: 0x9E (158) stepping: 0xA (10) microcode: 0xEC
Topology: cpus: 1x cores: 4 tpc: 2 threads: 8 smt: enabled cache:
L1: 256 KiB desc: d-4x32 KiB; i-4x32 KiB L2: 1024 KiB desc: 4x256 KiB
L3: 8 MiB desc: 1x8 MiB
Speed (MHz): avg: 900 min/max: 800/2300 scaling: driver: intel_pstate
governor: powersave cores: 1: 900 2: 900 3: 900 4: 900 5: 900 6: 900 7: 900
8: 900 bogomips: 36812
Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
Vulnerabilities:
Type: itlb_multihit status: KVM: VMX disabled
Type: l1tf
mitigation: PTE Inversion; VMX: conditional cache flushes, SMT vulnerable
Type: mds mitigation: Clear CPU buffers; SMT vulnerable
Type: meltdown mitigation: PTI
Type: spec_store_bypass
mitigation: Speculative Store Bypass disabled via prctl
Type: spectre_v1
mitigation: usercopy/swapgs barriers and __user pointer sanitization
Type: spectre_v2 mitigation: Retpolines, IBPB: conditional, IBRS_FW,
STIBP: conditional, RSB filling
Type: srbds mitigation: Microcode
Type: tsx_async_abort status: Not affected
Graphics:
Device-1: Intel CoffeeLake-H GT2 [UHD Graphics 630]
vendor: Acer Incorporated ALI driver: i915 v: kernel ports: active: eDP-1
empty: none bus-ID: 00:02.0 chip-ID: 8086:3e9b class-ID: 0300
Device-2: NVIDIA GP107M [GeForce GTX 1050 Ti Mobile] driver: N/A
alternate: nouveau pcie: speed: Unknown lanes: 63 link-max: gen: 6
speed: 64 GT/s bus-ID: 01:00.0 chip-ID: 10de:1c8c class-ID: 0300
Device-3: Realtek USB Boot type: USB driver: N/A bus-ID: 1-5:2
chip-ID: 0bda:5841 class-ID: 0e02 serial:
Display: x11 server: X.org v: 1.21.1.3 with: Xwayland v: 22.1.1
compositor: gnome-shell driver: X: loaded: intel gpu: i915 display-ID: :1
screens: 1
Screen-1: 0 s-res: 1920x1080 s-size: <missing: xdpyinfo>
Monitor-1: eDP-1 mapped: eDP1 model: AU Optronics 0x60ed built: 2016
res: 1920x1080 hz: 60 dpi: 143 gamma: 1.2 size: 340x190mm (13.39x7.48")
diag: 394mm (15.5") ratio: 16:9 modes: 1920x1080
Message: Unable to show GL data. Required tool glxinfo missing.
Audio:
Device-1: Intel Cannon Lake PCH cAVS vendor: Acer Incorporated ALI
driver: snd_hda_intel v: kernel alternate: snd_soc_skl,snd_sof_pci_intel_cnl
bus-ID: 00:1f.3 chip-ID: 8086:a348 class-ID: 0403
Device-2: NVIDIA GP107GL High Definition Audio driver: snd_hda_intel
v: kernel pcie: speed: Unknown lanes: 63 link-max: gen: 6 speed: 64 GT/s
bus-ID: 01:00.1 chip-ID: 10de:0fb9 class-ID: 0403
Sound Server-1: ALSA v: k5.17.1-3-MANJARO running: yes
Sound Server-2: JACK v: 1.9.20 running: no
Sound Server-3: PulseAudio v: 15.0 running: yes
Sound Server-4: PipeWire v: 0.3.49 running: yes
Network:
Device-1: Intel Cannon Lake PCH CNVi WiFi driver: iwlwifi v: kernel
bus-ID: 00:14.3 chip-ID: 8086:a370 class-ID: 0280
IF: wlp0s20f3 state: down mac:
Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
vendor: Acer Incorporated ALI driver: r8168 v: 8.049.02-NAPI modules: r8169
pcie: gen: 1 speed: 2.5 GT/s lanes: 1 port: 3000 bus-ID: 06:00.1
chip-ID: 10ec:8168 class-ID: 0200
IF: enp6s0f1 state: up speed: 1000 Mbps duplex: full mac:
Bluetooth:
Device-1: Intel Bluetooth 9460/9560 Jefferson Peak (JfP) type: USB
driver: btusb v: 0.8 bus-ID: 1-14:3 chip-ID: 8087:0aaa class-ID: e001
Report: rfkill ID: hci0 rfk-id: 3 state: up address: see --recommends
RAID:
Hardware-1: Intel 82801 Mobile SATA Controller [RAID mode] driver: ahci
v: 3.0 port: 5060 bus-ID: 00:17.0 chip-ID: 8086:282a rev: N/A class-ID: 0104
Drives:
Local Storage: total: 1.03 TiB used: 86.61 GiB (8.2%)
SMART Message: Required tool smartctl not installed. Check --recommends
ID-1: /dev/sda maj-min: 8:0 vendor: Kingston model: RBUSNS8180DS3128GJ
size: 119.24 GiB block-size: physical: 512 B logical: 512 B speed: 6.0 Gb/s
type: SSD serial: rev: 61E1 scheme: GPT
ID-2: /dev/sdb maj-min: 8:16 vendor: HGST (Hitachi) model: HTS721010A9E630
size: 931.51 GiB block-size: physical: 4096 B logical: 512 B speed: 6.0 Gb/s
type: HDD rpm: 7200 serial: rev: A3J0 scheme: GPT
Partition:
ID-1: / raw-size: 110.15 GiB size: 107.92 GiB (97.98%)
used: 86.61 GiB (80.3%) fs: ext4 dev: /dev/sda2 maj-min: 8:2
ID-2: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%)
used: 280 KiB (0.1%) fs: vfat dev: /dev/sda1 maj-min: 8:1
Swap:
Kernel: swappiness: 60 (default) cache-pressure: 100 (default)
ID-1: swap-1 type: partition size: 8.8 GiB used: 0 KiB (0.0%) priority: -2
dev: /dev/sda3 maj-min: 8:3
Sensors:
System Temperatures: cpu: 43.0 C pch: 42.0 C mobo: N/A
Fan Speeds (RPM): N/A
Info:
Processes: 252 Uptime: 19m wakeups: 1 Memory: 7.61 GiB
used: 1.96 GiB (25.8%) Init: systemd v: 250 tool: systemctl Compilers:
gcc: 11.2.0 clang: 13.0.1 Packages: pacman: 1416 lib: 436 flatpak: 0
Shell: Bash v: 5.1.16 running-in: gnome-terminal inxi: 3.3.15
sudo rmmod uvcvideo && sudo modprobe uvcvideo
I got no errors and no output, but still can’t see my webcam.
Result of v4l2-ctl --list-devices gives:
Cannot open device /dev/video0, exiting.
I even ran sudo dmesg | grep usb
output of dmesg|grep usb:
[ 0.225087] usbcore: registered new interface driver usbfs
[ 0.225087] usbcore: registered new interface driver hub
[ 0.225087] usbcore: registered new device driver usb
[ 0.496025] usbcore: registered new interface driver usbserial_generic
[ 0.496029] usbserial: USB Serial support registered for generic
[ 1.595441] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.17
[ 1.595446] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.595449] usb usb1: Product: xHCI Host Controller
[ 1.595452] usb usb1: Manufacturer: Linux 5.17.1-3-MANJARO xhci-hcd
[ 1.595454] usb usb1: SerialNumber: 0000:00:14.0
[ 1.596986] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.17
[ 1.596989] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.596991] usb usb2: Product: xHCI Host Controller
[ 1.596992] usb usb2: Manufacturer: Linux 5.17.1-3-MANJARO xhci-hcd
[ 1.596994] usb usb2: SerialNumber: 0000:00:14.0
[ 1.597331] usb: port power management may be unreliable
[ 1.848021] usb 1-5: new high-speed USB device number 2 using xhci_hcd
[ 1.991069] usb 1-5: New USB device found, idVendor=0bda, idProduct=5841, bcdDevice= 1.03
[ 1.991080] usb 1-5: New USB device strings: Mfr=3, Product=1, SerialNumber=2
[ 1.991084] usb 1-5: Product: USB Boot
[ 1.991087] usb 1-5: Manufacturer: Generic
[ 1.991090] usb 1-5: SerialNumber: 2012
[ 2.114663] usb 1-14: new full-speed USB device number 3 using xhci_hcd
[ 2.259450] usb 1-14: New USB device found, idVendor=8087, idProduct=0aaa, bcdDevice= 0.02
[ 2.259459] usb 1-14: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 5.683552] usbcore: registered new interface driver btusb
[ 5.785079] usb 1-5: Found UVC 1.00 device USB Boot (0bda:5841)
[ 5.785329] usb 1-5: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround.
[ 5.785577] usbcore: registered new interface driver uvcvideo
[ 408.344749] usbcore: deregistering interface driver uvcvideo
[ 408.665292] usb 1-5: Found UVC 1.00 device USB Boot (0bda:5841)
[ 408.665763] usb 1-5: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround.
[ 408.666140] usbcore: registered new interface driver uvcvideo
[ 661.762976] usbcore: deregistering interface driver uvcvideo
[ 662.121996] usb 1-5: Found UVC 1.00 device USB Boot (0bda:5841)
[ 662.122403] usb 1-5: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround.
[ 662.122914] usbcore: registered new interface driver uvcvideo
Does my issue have something to do with [ 662.122914] usbcore: registered new interface driver uvcvideo
output of inxi -Gazy :
Graphics:
Device-1: Intel CoffeeLake-H GT2 [UHD Graphics 630]
vendor: Acer Incorporated ALI driver: i915 v: kernel ports: active: eDP-1
empty: none bus-ID: 00:02.0 chip-ID: 8086:3e9b class-ID: 0300
Device-2: NVIDIA GP107M [GeForce GTX 1050 Ti Mobile] driver: N/A
alternate: nouveau pcie: speed: Unknown lanes: 63 link-max: gen: 6
speed: 64 GT/s bus-ID: 01:00.0 chip-ID: 10de:1c8c class-ID: 0300
Device-3: Realtek USB Boot type: USB driver: N/A bus-ID: 1-5:2
chip-ID: 0bda:5841 class-ID: 0e02 serial:
Display: x11 server: X.org v: 1.21.1.3 with: Xwayland v: 22.1.1
compositor: gnome-shell v: 41.5 driver: X: loaded: intel gpu: i915
display-ID: :1 screens: 1
Screen-1: 0 s-res: 1920x1080 s-size: <missing: xdpyinfo>
Monitor-1: eDP-1 mapped: eDP1 model: AU Optronics 0x60ed built: 2016
res: 1920x1080 hz: 60 dpi: 143 gamma: 1.2 size: 340x190mm (13.39x7.48")
diag: 394mm (15.5") ratio: 16:9 modes: 1920x1080
Message: Unable to show GL data. Required tool glxinfo missing.
output of lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 0bda:5841 Realtek Semiconductor Corp. USB Boot
Bus 001 Device 003: ID 8087:0aaa Intel Corp. Bluetooth 9460/9560 Jefferson Peak (JfP)
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
output of ls -l /dev/video* is :
ls: cannot access '/dev/video*': No such file or directory
I have gone through similiar threads on the forum, nothing seems to provide a fix for my situation.
Desperately looking forward for some help from you guys! 
