Hi,
I've not used RPCS3 in about a year and it turns out the UI in most recent builds is like the following...

I've spent a bit of time tracking down the last build that where the UI was drawn to screen correctly which is build "rpcs3-v0.0.8-9546-76271800_linux64.AppImage" as you can see below...

I'm not aware of any debug commands I can run to make RPCS3 output logging info outside of a game but, I can confirm that the AppImage does not output any error to console when executed from the command line
The desktop is just a standard X-server using openbox as the window manager. Here some info about my pc...
Processor Information:
CPU Brand: Intel(R) Core(TM) i7-4710MQ CPU @ 2.50GHz
Speed: 3700 Mhz
8 logical processors
4 physical processors
Operating System Version:
"Manjaro Linux" (64 bit)
Kernel Name: Linux
Kernel Version: 5.4.34-1-MANJARO
X Server Vendor: The X.Org Foundation
X Server Release: 12008000
X Window Manager: Openbox
Video Card:
Driver: NVIDIA Corporation GeForce GTX 870M/PCIe/SSE2
Driver Version: 4.6.0 NVIDIA 430.64
Primary VRAM: 6144 MB
Here's a link to more comprehensive details about my hardware...
https://gist.github.com/Niroc/ab1f133f7e79e9e0d7932670b5f6cdc5
Also, I can still run games perfectly fine on the newest builds. I just can't configure anything.
For the record, I use Manjaro and I'm not getting any of these issues, regardless of using AppImage or local build
The build you report as breaking this is #7460
ok, well I am running qt 5.14.2

My best guess is that this is yet another variation of #8052
It happens to me too, but only if I run the app as root. Otherwise it runs normally.
Why would you run it as root?
idk, I just told you when that happens to me. I don't usually run it as root but I did it once by mistake and the GUI got corrupted
The export command worked, Thanks.
Also, it definitely wasn't running as root as, it never asked me for a password.
similar issue here on arch linux i3wm. not exactly like your screenshot (even worse in my case: menu text totally unreadable), setting QT_AUTO_SCALE_FACTOR=0 as suggested in #8052 fixed it for me.
@Niroc can you please test PR #8649 ?
You should not need the export with the PR.
Most helpful comment
Why would you run it as root?