mike.rosset@gmail.com writes:

> I have a simple CPP for testing it can be found
> here. https://github.com/mrosset/testqt.
>
> for testing I use this enviroment.
>
> --8<---------------cut here---------------start------------->8---
> ./pre-inst-env guix environment  --ad-hoc qtbase qtwebengine qtdeclarative qtwebchannel coreutils gcc-toolchain nss-certs
> --8<---------------cut here---------------end--------------->8---
>
> and then I test with
>
> --8<---------------cut here---------------start------------->8---
> cd testqt
> qmake
> make
> ./main
> --8<---------------cut here---------------end--------------->8---

This worked for me.

> or there are hardware acceleration problems
>
> --8<---------------cut here---------------start------------->8---
> QT_XCB_FORCE_SOFTWARE_OPENGL=1 ./main
> --8<---------------cut here---------------end--------------->8---

No problem on my end with an AMD RX 580.

-- 
Pierre Neidhardt
https://ambrevar.xyz/