Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.debian.kernel > #90347

Bug#1121718: linux-image-6.17.8+deb14-amd64: Logitech C920 HD Pro Webcam shows flickering artifacts (sometimes)

Cross-posted to 2 groups.

Show all headers | View raw

Hi Salvatore,

Thank you for the reply!

> If you reliably can reproduce the issue then (although I realize that
> each testing step is time consuming), I would suggest to start a
> bisect.

Unfortunately I cannot reproduce it alone, I need someone else to be in the Zoom 
room. Also, I only have that webcam in the office, and I shouldn't spend hours 
of my employer's time on bisects. ;)  I guess I could take it home over a 
weekend or so, but I'd still need a way to reproduce the issue alone, and find a 
weekend day where I have nothing else to do.

So, a bisect is not currently practical I am afraid. I was hoping someone else 
might know better ways to reproduce this, e.g. some open-source program that 
also does whatever Zoom does when it reconfigures the camera when someone joins 
the call.

In case that changes in the future --
Do you know some folder(s) that the bisect could be limited to? That would cut 
down the number of steps significantly.

Kind regards,
Ralf

> First though narrow down more closely the Debian versions which expose
> the problen and not (using the images fetched from
> https://snapshot.debian.org/). Once you have two upstream versions
> close enough, start a bisect.
> 
> Do you need instructions/help on how to do that?
> 
> Regards,
> Salvatore

Back to linux.debian.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Bug#1121718: linux-image-6.17.8+deb14-amd64: Logitech C920 HD Pro Webcam shows flickering artifacts (sometimes) Salvatore Bonaccorso <carnil@debian.org> - 2025-12-02 17:50 +0100
  Bug#1121718: linux-image-6.17.8+deb14-amd64: Logitech C920 HD Pro Webcam shows flickering artifacts (sometimes) Ralf Jung <post@ralfj.de> - 2025-12-02 18:50 +0100
    Bug#1121718: linux-image-6.17.8+deb14-amd64: Logitech C920 HD Pro Webcam shows flickering artifacts (sometimes) Ralf Jung <post@ralfj.de> - 2025-12-08 19:50 +0100
    Bug#1121718: linux-image-6.17.8+deb14-amd64: Logitech C920 HD Pro Webcam shows flickering artifacts (sometimes) Ralf Jung <post@ralfj.de> - 2025-12-17 14:20 +0100
      Bug#1121718: linux-image-6.17.8+deb14-amd64: Logitech C920 HD Pro Webcam shows flickering artifacts (sometimes) Salvatore Bonaccorso <carnil@debian.org> - 2025-12-17 20:30 +0100
        Bug#1121718: linux-image-6.17.8+deb14-amd64: Logitech C920 HD Pro Webcam shows flickering artifacts (sometimes) Ralf Jung <post@ralfj.de> - 2025-12-17 20:40 +0100
          Bug#1121718: linux-image-6.17.8+deb14-amd64: Logitech C920 HD Pro Webcam shows flickering artifacts (sometimes) Ralf Jung <post@ralfj.de> - 2025-12-18 14:20 +0100
      Bug#1121718: linux-image-6.17.8+deb14-amd64: Logitech C920 HD Pro Webcam shows flickering artifacts (sometimes) Ralf Jung <post@ralfj.de> - 2026-01-02 14:30 +0100
        Bug#1121718: linux-image-6.17.8+deb14-amd64: Logitech C920 HD Pro Webcam shows flickering artifacts (sometimes) Salvatore Bonaccorso <carnil@debian.org> - 2026-01-02 15:10 +0100
          Bug#1121718: linux-image-6.17.8+deb14-amd64: Logitech C920 HD Pro Webcam shows flickering artifacts (sometimes) Ralf Jung <post@ralfj.de> - 2026-01-02 17:40 +0100
            Bug#1121718: linux-image-6.17.8+deb14-amd64: Logitech C920 HD Pro Webcam shows flickering artifacts (sometimes) Ralf Jung <post@ralfj.de> - 2026-01-05 16:50 +0100
            Bug#1121718: linux-image-6.17.8+deb14-amd64: Logitech C920 HD Pro Webcam shows flickering artifacts (sometimes) Laurent Pinchart <laurent.pinchart@ideasonboard.com> - 2026-01-05 19:10 +0100
            Bug#1121718: linux-image-6.17.8+deb14-amd64: Logitech C920 HD Pro Webcam shows flickering artifacts (sometimes) Ralf Jung <post@ralfj.de> - 2026-01-05 20:30 +0100
              Bug#1121718: linux-image-6.17.8+deb14-amd64: Logitech C920 HD Pro Webcam shows flickering artifacts (sometimes) Ralf Jung <post@ralfj.de> - 2026-01-20 15:30 +0100

csiph-web