simplescreenrecorder can not record the screen

[classe]

The Mp4 file （obtained from the recording screen with simplescreenrecorder) can be played, but the output is black screen and without any content.

Replacing wayland with xorg can solve this problem. I guess that it maybe related to the graphics card driver.
How to confirm what is the reason ？And, how to resolve it ?

My laptop:
thinkapd w540
buster GNOME (installed from 10.0.0-live+nonfree.iso)
upgrade to 2019-08-23
lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06)
01:00.0 VGA compatible controller: NVIDIA Corporation GK106GLM [Quadro K2100M] (rev a1)

Thank you~

[classe]

This afternoon, I reinstalled the system using a new USB boot disk(made from 10.0.0-live+free.iso).
The problem still exists.

My laptop:
thinkapd w540
buster GNOME (installed from 10.0.0-live-free.iso)
upgrade to 2019-08-23
lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06)
01:00.0 VGA compatible controller: NVIDIA Corporation GK106GLM [Quadro K2100M] (rev a1)

[stevepusser]

Are there any bugs about that issue for the package at packages.debian.org?

If not, report it, using reportbug.

[classe]

OK. I will try it.

Thank you~

[classe]

On the homepage of SSR: https://github.com/MaartenBaert/ssr/issues/431

The Author said that SSR would not support wayland until some security questions solved.

So, I hand to turn back to xorg, or, replace SSR with another screen recorder tools that support wayland......

Does anyone can recommend me one ?