Kernel and gnome-screenshot

rado84 · 2019-12-08 11:45:12

I'm posting this here because with every next kernel update the situation improves just a bit which makes me think it's a kernel problem and not a gnome-screenshot problem.

In this topic I have described the problem - how when taking screenshots a flash appears which during watching movies (mpv/smplayer) includes the short appearance of the panel and once the flash is gone, the panel goes into hiding again and all that used to happen in about 3 seconds.
When I wrote that topic on gitlab, I thought the problem was in gnome-screenshot. However, a month and a bunch of kernel versions later, to me it seems to be a kernel problem (because gnome-screenshot was never updated ever since I posted the problem on gitlab). Cuz now when I take screenshots (kernel 5.4.2), this flash in question is much quicker - appears and disappears in maybe a quarter of the second and the panel doesn't appear while watching movies with mpv.
So, if the kernel programmers have a way to track down the origin of that flash and disable it, I'd be grateful. If you require any logs, just let me know. Or, if there's any option in the DE to do it myself, that'd be even better.

The DE is Cinnamon 4.4.3 and gnome-screenshot is 3.34.0.

Last edited by rado84 (2019-12-08 11:47:02)

V1del · 2019-12-08 16:36:25

The origin of the flash is gnome-screenshot. there's a PR slated for making this configurable https://gitlab.gnome.org/GNOME/gnome-sc … /issues/64

As for how the kernel made this faster, that's likely the graphics driver being used for accelerating the effect, but that's a side effect and not the cause of the issue.

rado84 · 2019-12-09 07:12:37

I understand. I thought it was the kernel because the flash appeared for the first time after updating to 5.3.6.

Arch Linux

#1 2019-12-08 11:45:12

Kernel and gnome-screenshot

#2 2019-12-08 16:36:25

Re: Kernel and gnome-screenshot

#3 2019-12-09 07:12:37

Re: Kernel and gnome-screenshot

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