[Launcher 2021.1 Linux] Launcher interface appears completely black when used with NVIDIA Prime Render Offload

[pessimism]

For anyone stumbling across this thread in 2022:
The --disable-gpu flag did not work for me for launcher 2022.9 running under Steam on LMDE5 (Debian 11)
What did work: edit ~/.paradoxlauncher/launcher-v2.2022.9/Paradox Launcher
add --pdxlDisableHardwareAcceleration beside the --no-sandbox argument

Set Steam Launch Options for the game:
__NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia %command%

These two actions fixed the black launcher screen and let the game use the NVIDIA card on my Nitro 5 AN515-54 laptop (Intel & NVIDIA switchable graphics).

 

[batu.borjigin]

For those using steam, you can also click on the settings icon for the game, click on "Properties" and add "--disable-gpu" to the box under "LAUNCH OPTIONS"

View attachment 807668

View attachment 807669

This works for me(nvidia 1660ti, ubuntu 20.04, nvidia driver version 515).