Ubuntu 16.04 LTS 64位系统下Logitech C170摄像头启动Cheese报错求助

Hey there, let's work through this webcam issue since your Logitech C170 works fine on the 32-bit version of Ubuntu 16.04 but throws an error in Cheese on the 64-bit install. This points to 64-bit-specific driver or library issues—here are actionable steps to fix it:

1. Verify the webcam is detected by the system #

First, confirm your Logitech C170 shows up in the lsusb output. Look for a line like this:

Bus 001 Device 002: ID 046d:082b Logitech, Inc. C170

If you see this, the system recognizes the hardware, so we can move on to software fixes.

2. Install/verify video capture utilities #

Cheese relies on the V4L2 framework. Install the 64-bit tools to diagnose and configure your webcam:

sudo apt-get update
sudo apt-get install v4l-utils

Check if the webcam is listed as a video device:

v4l2-ctl --list-devices

You should see an entry for your Logitech C170 pointing to /dev/video0 (or similar). To confirm the camera is functional, run:

v4l2-ctl -d /dev/video0 --all

This will show camera parameters—if it runs without errors, the hardware is accessible at the system level.

3. Reinstall Cheese and its 64-bit dependencies #

Corrupted or missing 64-bit libraries often cause this error. Reinstall Cheese and its core dependencies:

sudo apt-get install --reinstall cheese libcheese-gtk23 libcheese7

This ensures you have the correct 64-bit versions of all required files.

4. Test with an alternative webcam app #

To rule out a Cheese-specific bug, install and run guvcview:

sudo apt-get install guvcview
guvcview

If guvcview can access the webcam, the problem is with Cheese's configuration. Reset Cheese's settings to default:

rm -rf ~/.config/cheese/

Then launch Cheese again to see if it works.

5. Check and configure the UVC video module #

Logitech C170 uses the uvcvideo kernel module. First, confirm it's loaded:

lsmod | grep uvcvideo

If it's not listed, load it manually:

sudo modprobe uvcvideo

Some webcams need a quirk parameter to work correctly on 64-bit systems. Add this configuration:

sudo echo "options uvcvideo quirks=128" >> /etc/modprobe.d/uvcvideo.conf

Reboot your system for the changes to take effect.

6. Update your kernel #

Outdated 64-bit kernels can have compatibility issues with webcams. Update to the latest available kernel for Ubuntu 16.04:

sudo apt-get update
sudo apt-get upgrade linux-image-generic

Reboot your system after the update and test Cheese again.

内容的提问来源于stack exchange，提问作者Lumaja