On PCLinux Mate, I ran into an issue. After installing the nvidia drivers for my card it messed up the font sizes for GDM. I asked about it on the PCLinux forums but it doesn't appear that they know how to fix it either. I saw something in the arch wiki. https://wiki.archlinux.org/index.php/GDM#Larger_font_for_log-in_screen
but I don't have any of the files they talk about.
[gregory@localhost db]$ cd ~
[gregory@localhost ~]$ cd /etc
[gregory@localhost etc]$ cd dconf
[gregory@localhost dconf]$ cd db
[gregory@localhost db]$ ls
[gregory@localhost db]$ cd gdm.d
bash: cd: gdm.d: No such file or directory
PCLinux idea was to change the fonts inside this file.
I tried searching for all the fonts called Arial and changing them all to 20 and then rebooting the system. I could see no effect on the login screen.
Here a member of PCLinusOS shows what the login screen looks like. Keep reading down and you will see what the suggestion is. I tried it and it didn't work. I posted at the bottom of this what I tried and told them it didn't work.https://www.pclinuxos.com/forum/index.php/topic,149548.msg1276366.html#msg1276366
Surly this is not just a PCLinux issue. If people like Ubuntu can make things work, then there must be a way to make it work here too. I do know what Xubuntu and Linux Mint Xfce is using LightDM instead of GDM. I made one attempt at opening up synpatic package manager and searching for LightDM. Doesn't appear to be in the PCLinux Repos.