![]() ![]() Someone could give his or hers opinion what the culprit of my problem could be and maybe how to mitigate it andĢ. I dug for days through forums and wikis, to find the right variables. MangoHUD works fine with vulkan applications but OpenGL? Not so much. According to pcgamingwiki this game uses opengl 3.3, which should work with mangohud (i checked the man page and followed it's instructions -> game crashes), and again this game has linux a native version, so it's a bit of a head-scratcher for why exactly this game behaves so weirdly. Regarding the frame-timing, i have no way of confirming this since MangoHUD refuses to work with Devil Daggers, no matter the version (Linux native, proton, etc.), or what variables i feed to MangoHUD. So i want to go to the bottom of this problem, so that it doesn't bite me in the bum later. Gaming is not it's primary focus, but as i said i'm a bit worried on how reliable this installation will be, if it already fails with a "simple" OpenGL app. The PC that has this problem, currently runs Mint 21.1 and is primarily built for calculating fractals, rendering and handling very big eurorack synthesizer setups. So maybe something has fundamentally changed between version 21 and 21.1 regarding OpenGL? This rig runs everything absolutely perfectly. Not that i think it's impossible, but all the more a reason to get to the bottom of this.Īnyway, as i describe below i have sadly no way of confirming this, because everything i try to do exactly that fails.įurther below i have also listed my specs and what i've tried so far to mitigate the problem.Īlso worth mentioning, my old machine runs Linux Mint 21, with NVIDIA Drivers 515, has i7 6700k Processor, paired with a Nvidia GTX980ti. I checked both hashes of the ISO and the installation-medium, they are both correct. This would surprise me because this is vanilla and fresh install of Linux Mint 21.1. I suspect that somethings up with frame-timing when using OpenGL or my system is broken somewhere deep down, which would be a nice thing to fix. So far Vulkan applications work fine and games using DXVK as well. Yet there are also no drops in framerate. ![]() Glxgears shows stuttering at seemingly random points, with or without Vsync. I noticed very slight stuttering here and there but nothing serious. I did a quick install of quakespasm, because as i understand, this sourceport also uses OpenGL. ![]() Which doesn't make sense, since this system is way less powerfull then my current rig and the game isn't demanding at all. Game for many hours on my old machine, which had the same Nvidia provided graphics driver (version 515) and it also ran via steam proton (ge-proton to be exact) or Steam Linux runtime, with no issues at all. It looks like the game dropped down to 20 FPS, it's a slideshow almost, BUT the framerate stays consistent at 120 FPS, i could push it even higher, wayĪbove 1000 FPS, which I wouldn't do of course, because that would stress the GPU unnecessarily. BUT after a few minutes, as i said the graphics begin to "stutter". That wouldn't be surprising to me if the framerate would dip, which it doesn't, it stays at a rock solid 120 FPS, with maybe 1-2 frames dropping here and there. Be it if the screen is busy or merely empty, it just seems to happen at random points, but gets worse the longer the program runs. I notice very strong stuttering, despite the framerate being very high. The most obvious one would be Devil Daggers. So far i tested: glxgears (started via terminal), devildaggers, quakespasm. So i have this really weird problem with OpenGL applications, probably all of them. ![]()
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