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The game doesn't support a lot of resolution options by default and none of them are widescreen, but you can set it to whaterver resolution/aspect ratio by editing the "autoexec.cfg" files as seen here: https://www.pcgamingwiki.com/wiki/Star_Wars:_Jedi_Knight_II_-_Jedi_Outcast#Widescreen_resolution
I recommend switching to OpenJK's native linux version, using Steam Tinker Launch to point to the new executable, no proton involved
You can play it as is, or tweak it to your liking (typically to use the whole screen for people not on 4:3 ones)
__GL_ExtensionStringVersion=17700 %command%
Had to force use Proton Experimental, the default Proton layer (I don't remember which one it was) made the game not show up even though Steam considered it playing.
Graphics tweaking
This is nothing due to Linux, I would have done the same on Windows.
I used a custom autoexec.cfg file to tweak graphics/audio quality, force 1920x1080 resolution, add dismemberment, ...
You can find it here, along instructions on how to use it or make your own:
gist.github.com/L0Lock/b970950b2d5097680fb43b91912db453
Nvidia GPUs launch option
The launch option __GL_ExtensionStringVersion=17700 %command% is required for Nvidia GPUs to scale the game properly when using non-4:3 resolutions like mine (removes black bars and such).
Better controls
If you tweaking with the resolution certain texture doesnt load properly
Aim control was laggy, tried with Joystick input and the lagg remained. Gyro helps a lot
Once again, I tweaked with the resolution, I couldnt load some save files. Had to change back to the original resolution and use FSR.
Need a little tweaking here and there, but completely playable
For earlier missions which are guns only, gyro is helpful
Luxtorpeda is an alternative to proton when a game has a linux engine replacement. Luxtorpeda is installable from protonup-qt. When Jedi Outcast 2 or Acdemy is set to Luxtorpeda (via force compatability), it will download OpenJK which is a native linux game engine for these games (it does not support multiplayer unforunately). OpenJK works perfectly well on steam deck. This is honestly a pretty cool compatability option I just learned about and played about 2 hours into the game.
See more games supported by luxtorpeda - https://github.com/dreamer/luxtorpeda
use: r_customwidth 2560 r_customheight 1440 r_mode -1 vid_restart cg_fov [Whatever FOV you want] com_maxfps 0 in the ingame console to make it run with uncapped fps in 1440p
Work flawlessly out of the box Maybe some minor graphics artifact in some missions. But that just be the games age. It stuttered once without crashing.
Remapped some back buttons to better use some force powers, switched left analog stick to Analog Emulation, enabled gyro aim
Slight audio crackling during movies
The game would only show a texture on the screen during gameplay or cutscenes until I switched off OpenGL Extensions
Input was weirdly choppy until I switched on Joystick Input
After some modifications of the in game settings the game ran great!
seta r_ignorehwgamma=1.8
Gamma seems a bit off. Also cannot use the Gamma bar. Indoors is much less of an issue, its the atmosphiric lighting where this is obvious
Had to bump the gamma to 1.8. Another report indicated going to 1.6 worked. Different monitors likely play a factor. Tried loading the game with Proton 7.0 and it seems the gamma issues are resolved, but haven't had significant time with 7.0 yet.
Textures forced to 16-bit and not look good.
For using 32-bit textures change in file GameData/base/jk2config.cfg at line seta r_ignorehwgamma value "0" to value "1".
Side issue is that changing brightness is not work - manually set in this file at line seta r_gamma value "1.0" to "1.6" (lighter) or other you prefer.
Played with Proton 6.3-8.
(Not tested) May be played under Wine (not Proton) directly using Windows binary from project https://github.com/JACoders /OpenJK
Proton 4.11-13 did the trick, out of the box no issues as of now.
Testing with different proton versions (such as experimental and 6.3-8) i found a problem where the menu screen was black, but replaced my cursor's texture (similar issue on swjkja).
Game fails to start, as an important file is missing from it's base directory.
It appears that Steam packages a configuration file incorrectly, preventing the game from starting. I have no way to fix that issue.
When changing resolution in game it doesn't do anything.
For some reason on nvidia GPUS the screen goes dark so use the command below:
__GL_ExtensionStringVersion=17700 %command%
Works well, but dark picture.
Not worked gamma correction in game.
Played with Proton 5.0-7
Runs almost flawlesly. Had to add this to config ("GameData/Base/jk2config.cfg") to fix fullscreen brightness: "seta r_overbrightbits "0" " And for custom resolution you can add this if desired: "seta r_customheight "1080" seta r_customwidth "1920" seta r_fullscreen "1" seta r_mode "-1" seta cg_fov "95" "
runs flawlessly with launch option "__GL_ExtensionStringVersion=17700 %command%" (for Nvidia)
Working perfectly out of the box. No workarounds were applied.
Game runs great. Can't open console.
Unknown(an hour with Proton)had to set the following launch options for it but works now 100%. __GL_ExtensionStringVersion=17700 %command%
Unknown(an hour with Proton)Game exits immediately
UnknownThe game quits right away.
UnknownGame exits immediately
As another user suggested adding "__GL_ExtensionStringVersion=17700 %command%" to the launch options got the game to launch.
Steam automatically sets __GL_ExtensionStringVersion which works for nVidia for AMD/Intel systems using MESA you have to go into launch options and set it to:
MESA_EXTENSION_MAX_YEAR=2003 %command%
Would be useful if proton did this automatically like it does with __GL_ExtensionStringVersion
Doesn't start. Stuck on Steam popup 'Preparing to launch...'
AMD / Intel users only. First you need to add "MESA_EXTENSION_MAX_YEAR=2003 %command%" to Steam launch options to get the game to launch, otherwise it instantly crashes. Then, open the game console and type the following commands: "r_customwidth 1920" (or your monitor width), "r_customheight 1080" (or your monitor height), "r_mode -1" and "vid_restart". You only need to do this once. The next time you open the game it'll have the same res.
Works fine after adding “__GL_ExtensionStringVersion=17700 %command%” to the launch options in Steam. If you are like me and have a modern screen resolution (mine is 1440p) Also do the following commands as previously provided by others. Enter them by opening the console (Shift+~) then typing each line r_customwidth 2560 r_customheight 1440 set cg_fov 90 r_mode -1 vid_restart Then restart the game.
Game closes immediately
To fix the problems with the menu: run WINEPREFIX=~/steam/steamapps/compatdata/32380/pfx/ winecfg, go to the Graphics section, enable Emulate a vrtual desktop and set the resolution to the real resolution of your normal screen (e.g. 1920 x 1080). If you have Problems with the mouse, disable Enable Free look in the ingame Setup at Controls in the Options section.
Unknown(< 15 minutes with Proton)Needed launch options: __GL_ExtensionStringVersion=17700 %command% but still has some minor issues with mouse, feels not smooth. Custom resolutions can be set like this: Open console (~) enter: r_customwidth 3840 then r_customheight 2160 then r_mode -1 then vid_restart
Unknown(< 15 minutes with Proton)Unknown(< 1 hour with Proton)Launch option: __GL_ExtensionStringVersion=17700 %command%
Unknown(< 1 hour with Proton)You need to add the launch option: __GL_ExtensionStringVersion=17700 %command%
Works with "MESA_EXTENSION_MAX_YEAR=2003 %command%" in launch options on Intel graphics. According to other reports for Nvidia launch option is "__GL_ExtensionStringVersion=17700 %command%".
