Use http for preseeding please, it works much better with Debian-installer.Yes, I can confirm a smooth installation on g4. Sometimes the installer just doesn't accept the https of configuration file and I have to change it to http...
sudo apt install firmware-amd-graphics
It would be nice if you send me the installation log file. I am interested in errors.Make sure you have firmware-amd-graphics installed. It should be installed, if not:
Code:sudo apt install firmware-amd-graphics
You also might want to downgrade mesa:
sudo libreoffice
SAL_USE_VCLPLUGIN=gen libreoffice
export SAL_USE_VCLPLUGIN=gen
source ~/.bashrc
libreoffice
Another solution from within a Mint-LXDE session:
Code:SAL_USE_VCLPLUGIN=gen libreoffice
This will force the use of a generic (X11) backend for its graphical user interface. It will look outdated but it works at least from within LXDE.
If you want to make this option permanent, edit ~/.bashrc and add this line at the end
Code:export SAL_USE_VCLPLUGIN=gen
force reload ~/.bashrc:
Code:source ~/.bashrc
Now launch libreoffice the usual way from the console:
Code:libreoffice
Exec=env SAL_USE_VCLPLUGIN=gen libreoffice %F