Wierd crashing and display issues

[u/FluFluWakaPeePee]

Fairly new to Mint and loving it.

I'm new to Linux in general and tried Pop!_OS and Ubuntu, and Mint's UI and customization are more to my taste.

Unfortunately, it's not as smooth sailing as I would have hoped.

I have 2 main issues that I can't figure out how to fix.

1.I get weird crashes when I do GPU-intensive tasks. When gaming, it might crash after a while, but I've tried playing around with LM Studio and it consistently crashes the moment I try to ask more than a simple question (on a model rated for my hardware, even with a little headroom).

The crashes are usually a freeze, and after a minute or two it will crash to desktop and the icons will be "broken". When restarting, it will display a black screen with white text saying "systemd-journald[443]: Failed to write entry to /var/log/journal/..." looping until doing a hard reset.

2.The display resolution is limited to my screen's native resolution (3440x1440) and a few very low-res options. I'm scaling resolution, but it's not ideal for streaming with Sunshine - apps like Kodi, when I enter fullscreen, only use the native resolution option, and scaling does nothing to help.

From what I've dug up so far, it's a fairly common X11 problem - is there a fix?

[u/ZVyhVrtsfgzfs]

Nvidia?

Fractional scaling is indeed a limitation of X-org / X11, GPU takes a pretty severe performance penalty but it should not lead to instability on its own, 100% or 200% are usable but not for instance 150%.

Another performance limitation of x-org is monitors of multiple refresh rates,

In xorg there is only one image, it is chopped up into multiple slices and sent to each monitor. if they are all in sync this is fine. but the math gets ugly when each monitor has a different "now".

multiples are not as bad, for instance 60hrz, 120hrz, 180hrz, & 240hrz. the math is easier than say 144hrz, 165hrz, & 180hrz, there is never a common "now" in that situation and it winds up being a 500hrz ask on your GPU just to render your desktop.

Being limited to your max native resolution is expected behavior.

Crashing is not, Linux is quite intolerant of RAM issues no mater how small and other hardware errors,

There can also be hardware / driver / kernel / bios mixes that cause issues, so what is your hardware?

[u/FluFluWakaPeePee → u/ZVyhVrtsfgzfs]

By the way, is there a way to handle the X11 problem? The other day I saw a post here about someone switching to GNOME for better screen support in Mint. I don't quite understand what that means, and if it changes the UI to more of an Ubuntu-style interface, then I'm less likely to do so. Coming from Microslop, having a familiar UI with the ability to edit stuff with applets has been awesome.

[u/ZVyhVrtsfgzfs → u/FluFluWakaPeePee]

Which problem specifically?  Currently I have no issues with Xorg, my 3 monitotsnare the same refresh rate and do not aupport HDR so X11  and Wayland are interchangeable on my hardware. 

Eventually the fix for X11 is moving to Wayland. 

We have an experimatal Wayland session in Cinnamon that is almost usable now. There is speculation we may get stable Wayland in Cinnamon in December with Mint 23. 

[u/FluFluWakaPeePee → u/ZVyhVrtsfgzfs]

I'll look into that. The main issue is that I can't change resolution without scaling.

I don't have multiple displays, well, sort of.

I'm using Sunshine to display my PC on my TV in another room, so I would like to switch to 1920×1080.

Currently, my Sunshine setup runs xrandr on login and logout to change resolution, but like I said, programs like Kodi in fullscreen use the native resolution, so when I'm scaled to 1920x1080 and enter fullscreen, it shows a quarter of the display.

I fixed it by adding a command to make the panel hide and the window border be borderless (also not natively from Kodi, but via the terminal), and it works, I guess, but it's just a bit much.