Acer A515-57G Quanta Webcam 0x4033 Fix On Linux

acer_laptop_linux.md

• install kernel header files and build tools

# debian
sudo apt install linux-headers-amd64 build-essential

# fedora (might not be accurate!)
sudo dnf install kernel-devel<kernel_version>

• check current kernel version

uname -a

• download matching kernel tar file from (kernel)[https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/refs/tags] website.
• extracts and change directory to ./drivers/media/usb/uvc/
• open uvc_driver.c file and scroll down to find uvc_ids list, then add following like others:

	/* Quanta ACER HD User Facing */
	{ .match_flags 	= USB_DEVICE_ID_MATCH_DEVICE
			| USB_DEVICE_ID_MATCH_INT_INFO,
	  .idVendor = 0x0408,
	  .idProduct = 0x4033,
	  .bInterfaceClass = USB_CLASS_VIDEO,
	  .bInterfaceSubClass = 1,
	  .bInterfaceProtocol =	UVC_PC_PROTOCOL_15,
	  .driver_info = (kernel_ulong_t) &(const struct uvc_device_info ) { .uvc_version = 0x010a, } },

• build module with this command:

make -j4 -C /lib/modules/$(uname -r)/build M=$(pwd) modules

• copy uvcvideo.ko file to kernel module path

sudo cp uvcvideo.ko /lib/modules/$(uname -r)/kernel/drivers/media/usb/uvc/

• change directory to /lib/modules/$(uname -r)/kernel/drivers/media/usb/uvc/
• rename old file from uvcvideo.ko.xz to uvcvideo.ko.xz.bak (if required)
• rename file name from uvcvideo.ko to uvcvideo.ko.xz (if required)
• unload previous module

sudo modprobe -r uvcvideo

• use modeprobe command to load kernel module

sudo modprobe uvcvideo

Randomly stumbled on this upon an Arch user asking for help with their camera... have you contacted upstream about this?

was following this issue on launchpad and kernel developers also reacted to it so guess they are aware of that
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2000947
didn't contacted anyone myself