Asus Table T100HA webcam does not work with Ubuntu 20.04 LTS

Question

I just installed Ubuntu 20.04 LTS on my Asus Table T100HA and the Webcam no longer works. I tried with Cheese and some other Programs on my Browser...

I need some Help. - Thanks!

Solution

I had the same problem on a desktop machine with a USB webcam. After 20.04 upgrade there's no webcam shown with lsusb and no files seen at /dev/video.

I fixed it by uninstalling Cheese:

sudo apt-get remove cheese

I installed guvcview:

sudo apt-get install guvcview

Then unplugged and replugged the USB webcam and ran guvcview.

Files have now appeared at /dev/video0 and /dev/video1. The webcam appears when I run lsusb and is functioning in Google Meet and Zoom.

Comments

[dlin]

Maybe a permissions issue, try sudo chmod 777 /dev/video.

[Kevin B]

Thanks for your reply. I tried the command you suggested and received the following error message: chmod: cannot access ' /dev/video': No such file or directory

[dlin]

missed an asterisc, try sudo chmod 777 /dev/video

[Kevin B]

Thanks - Where would I put the asterisk ?

[dlin]

sudo chmod 777 /dev/video*

[Kevin B]

Thanks - I got the exact same error message except with the asterisk included /dev/video*

[dlin]

No idea why. An option is to lower the resolution from "Preferences" in Cheese and restart it until you get it working, but this is a workaround and not a clear answer to your question.

[Kevin B]

Because it does not recognize a webcam, it does not give me an option to lower the resolution in Cheese.

[meetnick]

@KevinB how did you made the sound to work on Ubuntu 20.04? My t100HAN doesn't work the sound at all!!

[Kevin B]

I have also used external USB Webcams and have had no problems with them. (Logitech). This specific thread was about my embedded webcam in the ASUS Laptop. I believe that the problem is caused by a lack of Drivers in the distro of Linux. I have since installed Mint/Linux and the embedded webcam does not work there either. I am not alone, as there are scads of posts with users with the same problem. So, the solution is to buy a popular external webcam like a Logitech, and it will probably be recognized.

[davidhaynz]

OK, but my webcam is an external Logitech USB, and it was working fine until I upgraded Ubuntu 19.10 to 20.04 So I think the problem was with the upgrade package.

[Erik Norman]

I have big issues with my Logitech Brio 4K on 20.04. I works from time to time, but mostly it just shows a black screen. I've also tried the apt version of cheese and also guvcview, no difference.