OpenGL suddenly stopped working.

[NumberNegative]

Output log: https://drive.google.com/file/d/0B0BZCbirvqyweFRMRWZxNFBIenM/view?usp=sharing[1]

I run my game in OpenGL to save ram because I run a ludicrous amount of mods. The other day I tried launching KSP and the screen started flashing and the game crashed if I hit any keys. It was working fine before. I made no changes to my system, all graphics drivers are up to date, and the game loads in dx9 without issue until it hits my ram limit. I couldn't find anything on this issue online.

[Malah]

Have you try KSP 32b ? It seems that you use KSP 64b which is unstable on Windows.

If you don't trust me, you can read this: http://forum.kerbalspaceprogram.com/threads/96320

And if you really want to use KSP 64b, I suggest you to use KSP on Linux, it work fine in 64b on it.

[NumberNegative]

I've been running 64-bit with minimal issues with anything. Even 32-bit won't run with OpenGL so I doubt that's the problem and dx9 32- bit is much, much worse than 64-but.

[Master Tao]

Your log shows this message repeatedly: Shader 'AtmosphereFromGround': fallback shader 'None' not found. I've never seen it more than once. Could you try changing your shader settings under Graphics? There are two to play with: Fallback shaders and SM3 Terrain Shaders.

You also said your graphics drivers are up to date. Did you update them just before KSP started flashing and crashing?

[NumberNegative]

There were no updates installed previous to having issues and when it first started I ran an update check that had nothing new. Last driver update was sometime in July and has been up-to-date since.

I haven't changed the shader settings but how can I change them now that I can't get the game to start?

[Master Tao]

Do you still have Launcher on the Steam version? You can use it to change settings without starting the game.

If not, you'll need to edit the settings file by hand. Open KSP\settings.cfg with a plain text editor, like Notepad. Find these two lines:

FALLBACK_PART_SHADERS = False
PLANET_FORCE_SHADER_MODEL_2_0 = True

Both are False by default. The first is the Fallback shader option and the second is the SM3 Terrain Shaders option. Try switching one or both to True.

Another option is to temporarily remove your mods and launch the game using DirectX. As long as you don't load your saves, they shouldn't be affected. Always good to make backups.

[NumberNegative]

I'll definitely give that a shot when I get home in a few hours and will let you know what happens.

[NumberNegative]

Update: Changing the shader settings still didn't help

[Kamuchi]

Do me a favor and search if you have "RealSolarSystem.dll" in your GameData folder and how many bites it is (file properties)

Did you install new/updated mods since it started?

[BudgetHedgehog]

I had the same problem and despite removing RSS from the install, I still couldn't launch OpenGL. I changed nothing (except to put RSS back in) and didn't attempt to start KSP again until the next morning (didn't turn off my computer though). Next morning, everything worked fine - even with RSS installed. So I can assure you, it's not RSS.

[Ruedii]

Something could have changed on your system that reduced the memory or video memory available to the game.

Did you try removing one or two mods, or try using Active Texture Management (ATM) or reduce your ATM quality settings to save RAM?

However, if the log is correct, it seems it's failing early in the loading process, possibly before loading the first Mod. You might to make a fresh install then move over all your mods one by one, then finally your saves.

Could you upload the other log? (KSP.log in the KSP home directory)

Some things load with more detail in one log, some in the other.

Edited November 12, 2014 by Ruedii

[NumberNegative]

Ksp.log: https://docs.google.com/file/d/0B0BZCbirvqywNmRxWWphdXRqZXc/edit?usp=docslist_api

I have even tried reverting my KSP back to stock and the problem persists.

Edited November 12, 2014 by NumberNegative

[Master Tao]

I'm afraid that log isn't helping much. It's even more empty the than the output_log.txt.

What else have you tried?

• Stock install?
  
• Reinstall graphics drivers?
  

[NumberNegative]

Reinstalling graphic drivers was one of my first ideas. The problem persists in stock and I even made a new thread here: http://forum.kerbalspaceprogram.com/threads/99891-OpenGL-suddenly-stopped-working

[sal_vager]

What's in the dxdiag? Maybe the driver isn't in right.

[NumberNegative]

Where would I find that?

[sal_vager]

It's a Windows diagnostic tool, see here.

[NumberNegative]

This? http://imgur.com/VkwY9iT apologize about the quality, I'm using remote desktop from my phone.

[sal_vager]

That is it but you'll need to save all the info to a file and post it to somewhere like pasetbin, or here in [code ] [/code ] tags.

[NumberNegative]

How's this? https://docs.google.com/file/d/0B0BZCbirvqywbEVGUjQ1eHY0Slk/edit?usp=docslist_api

[sal_vager]

Yeah that's it, and it looks fine, no clues there :/

I don't know how to fix this sorry, or even how to find out what's caused it.

[NumberNegative]

Understood, thanks for the help anyway. Hopefully someone who can figure it out comes along.

Maybe something worth sending directly to Squad?

Edited November 12, 2014 by NumberNegative