[Post-Install] Installation goes wrong with flatpak

[kubuntero]

Well, I was trying install RetroArch flatpak (the file downloaded was named org.libretro.RetroArch.flatpakref),
following the instructions of the official site (https://docs.libretro.com/guides/install-gnu/).

Everything wen well, except that this install appears to updated something about the desktop

Now the computer runs extremely slow in Wayland, but runs fine in X11 except for some glitches.
i was guessing i could reinstall the desktop with sudo apt update && sudo apt full-upgrade followed by sudo apt install --reinstall kde-plasma-desktop
thinking that this problem could be solved by a downgrade

Im a fool, i know, i didn't read. How can i show a log or anything for you guys?

[claydoh]

Installing a flatpak would not install anything related to the desktop OS, nor affect it

A way to test would be to uninstall Retoarch, log out or reboot, and see if it acts the same.
Is retroarch running when you see this? Check to see if it is running in the background.

I wonder if a normal system update might be an issue? You might also try booting to a previous kernel to check.
Slow in wayland, and glitchy in X11 seem to point to a kernel or driver update. Nvidia?

I really don't think the flatpak is the cause here, but I can always be wrong.

You might also consider using Libreto's PPA as described in the docs for a more native install, if removing the flatpak puts thing back the way they were.


Some basic system specs might be handy - use "About this System" in System Settings
If using an Nvidia GPU, which driver version?

[Snowhog]

Well, I was trying install RetroArch flatpak (the file downloaded was named org.libretro.RetroArch.flatpakref),
following the instructions of the official site (https://docs.libretro.com/guides/install-gnu/).

Which directions there specifically? There are instructions for installing this app as a flatpak, but there are also instructions for installing it natively, as it is a package that already is provided via the Ubuntu repositories. One just has to run: sudo apt install retroarch

[kubuntero]

Some basic system specs might be handy - use "About this System" in System Settings
If using an Nvidia GPU, which driver version?

The command line ran a serie of installs, I remember freedesktop.org and NVIDIA mentioned, and then installed RetroArch


About this System:

KDE plasma version: 6.34
KDE frameworks version: 6.12.0
QT version: 6.8.3
Kernel version: 6.14.0-27-generic(64bits)
graphic platform: X11

Funny, where it says graphics processor, ir says: llvmpipe! i have a nvidia card

Snowhog:
Used the flatpak because I thought it would have more cores, cores are more limited in the software center

[claydoh]

Funny, where it says graphics processor, ir says: llvmpipe! i have a nvidia card

Ya, a driver issue. You might check the driver manager and maybe try reinstalling the desired driver - the latest kernel update , the nvidia module probably failed to build. This is not unusual.

Try booting to a previous kernel in your Grub menu, which should have a working module.

This sort of thing is unrelated to Flatpak, just bad timing.

Cores I believe can be added no matter how it was installed, though I imagine that the relatively old Ubuntu native package (actually just a Debian package from early 2024) might affect which cores are supported or available, maybe.

[kubuntero]

OK, im on the driver manager, it says:

"NVIDIA CORPORATION: TU116 [GeForce GTX 1650 SUPER]
The device is using a manually-installed driver"

(all the NVIDIA option are greyed out)

Last option says "Continue using a manually installed driver"

"no proprietary drivers are in use" grayed out "apply changes" "revert"

and a final note reads "A proprietary driver has private code that Ubuntu developers can't review or improve. Security and other updates are dependent on the driver vendor"


In GRUB there is 2 modules, neither worked

[kubuntero]

Sorry double post.

I solved it!
used commands from: https://documentation.ubuntu.com/ser...vidia-drivers/

"sudo ubuntu-drivers list" to list all my driversand then

"sudo ubuntu-drivers install nvidia:-here the diver i want-"

Now testing...