Return to Castle Wolfenstein - Could not load OpenGL subsystem

[alexondrums]

I’m running the retail PC CD-ROM of Return to Castle Wolfenstein on Windows 10.

It works perfectly fine apart from in higher or widescreen resolutions.

Everything is fine up to 1280x960, any higher and I either get a grey window, rather than the game in full screen, or an error (for widescreen) ‘Could not load OpenGL subsystem’.

I have googled these issues and applied the following ‘fixes’:

https://www.moddb.com/games/return-to-castle-wolfenstein/downloads/rtcw-opengl-error-fix

Replace opengl32.dll

In:

C:\Program Files (x86)\Return to Castle Wolfenstein\Main

Also tried placing the file in different folders (as mention on various sites)

C:\Program Files (x86)\Return to Castle Wolfenstein\Main\gl
C:\Windows\System32 (removing ones in the above locations)

This has made no difference.

Can anyone advise any other solutions for this issue please?

Lenovo Thinkpad P50

 

[Parky]

Probably a resolution that's not supported normally, you could try setting the resolution manually through the console, I had to do similar steps in order to get Jedi Outcast & Jedi Academy years back to work at 1080p (also Quake 3 engine games).

Open the console and try:

seta r_mode -1
seta r_fullscreen 1
seta r_customwidth 1280 (or whatever res you want)
seta r_customheight 960 (or whatever res you want)
seta r_customaspect 2

Once you've done all those run Vid_restart and it should apply the changes.

 

[alexondrums]

Awesome that seems to have worked! Thanks very much

 

[Parky]

Awesome that seems to have worked! Thanks very much

No problem, it pretty much works across all this old Q3 games.

I think changing graphics settings can sometimes make it revert back as it will edit the config file, will just be a case of running the commands again if that's the case.