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Some weeks ago my Ubuntu installation on my Dell Latitude E7470 received kernel 6.2 (now 6.2.0-31-generic), but this update raises issue on my webcam. I can do meetings as usual but the image is flickering continuously because, I suppose, is continuing adjust brightness to react to environmental light. I try to boot with an older kernel, my case 5.19 and the issue disappeared. Given the facts that:

  • kernel 6.2 has some issue on the topic
  • kernel 5.19 seems discontinued

I need to find a way to use, as default so it should be something reboot/update proof, a previous kernel version that should be at this time 5.15.0-60-generic still installed.

Thanks for any advice

Luca Moscato
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  • Run the command lsusb. Edit your question to include the line of that output that is your camera. Show us that complete line. – user535733 Aug 30 '23 at 11:30
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    You've not mentioned what release you're using, but Ubuntu 22.04 LTS has two supported kernel stacks (I'm skipping OEM stacks for simplicity here), being 5.15 or the GA kernel stack, & HWE which is now 6.2 (it was 5.19 not long back; 6.2 from 23.04 & 5.19 from 22.10) thus if your release is 22.04 or jammy, then 5.15 is a supported kernel. You didn't mention your release though (6.2 is the kernel from 23.04, which is where 22.04 gets it) – guiverc Aug 30 '23 at 12:35
  • Please read https://askubuntu.com/help/how-to-ask and https://askubuntu.com/help/formatting . Take the [tour]. – waltinator Aug 30 '23 at 14:19
  • Does this answer your question? How can I disable hwe-support on ubuntu 18.04? – karel Aug 31 '23 at 10:15

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