Hello,

I'm also posting this query on the GOG site, but thought I'd try here as well.

I've downloaded the GOG version of Gabriel Knight 3 onto a Lenovo X1 Carbon, with Windows 7 64 bit.

When I try to start it, it immediately crashes, and says it is a Direct X error, from Invalid Pixel Format

Never seen that one before, and googling isn't helping.

Any ideas on how to fix this would be welcome.

Best,

Chris

You could try running this DirectX 9.0c updater from Microsoft.
http://www.microsoft.com/en-us/download/...034bcdd6d2=True

That updater actually helped me run an old game on a Windows 8.1 computer. Even though I'd already run some other older games on the computer, my DirectX was apparently still missing something.

I wasn't getting an "Invalid Pixel Format" error though. That might be specific to your laptop because it has such high graphics resolution (I read it is 2560 x 1440). I think the game runs in 640x480 by default. Is your laptop able to display 640 x 480 resolution? or at least in 1024x768?

I found some tips for running Gabriel Knight 3 in high resolution
http://www.sierrahelp.com/Games/GabrielKnight/GK3Help.html


There's another tip here which uses regedit
http://forum.pinkertonroad.com/showthread.php?164-Play-GK3-in-HD-resolutions!-%28720p-1080p-etc-%29

Keep in mind that if you set the resolution too high, you will have issues with the Sydney scene.

Thanks.

I've tried updating directx using the link above, and also tried to run the programme with a variety of resolutions, but no go. It just says that it is trying to revert to a lower resolution, and then throws up the pixel error as above.

Frustrating.

What is the minimum resolution and color depth that your laptop supports?

Are you able to set your desktop resolution to 640x480 (or 800x600 or 1024x768) at 16-bit resolution?

Control Panel --> Display --> Adjust resolution --> Advanced settings --> List all Modes button -->

in the box that lists possible resolutions, what is the lowest resolution and color depth you see there?


As an example, my Windows 8.1 computer has no options for anything other than 32-bit color at any resolution.
I think the game needs 16-bit color -- at least that's what's suggested at these sites:
http://www.sierrahelp.com/forums/viewtopic.php?f=5&t=3130
http://gk3tools.sourceforge.net/launcher.php

Interestingly, the same computer does not have the same limitation when booted to its Windows 7 partition. So the 32-bit-only limitation seems to be a Windows 8 limitation (at least with my particular video card/driver combination).

Oddly, when I do that (setting it to 16 bit, at any of the resolutions above), the error then changes to DirectX corrupted or not found, even though I've already installed Direct 9 in addition to what was already on there.

Hello. I understand that this is an old thread but I have been trying to find a solution to this problem and a couple of more that I had to face when I upgraded my Windows from 7 to 10. 7 were flawless in playing this great game but unfortunately 10 presented some graphic bugs. I think the problem lies within the OS, specifically how it handles lower DirectX needs. Mind you, I also read that DirectX 9 is problematic in its implementation and that several processes that mess with graphics options (or just monitoring) produce problems when using it. All in all, compatibility with older games is officially pushed out of the window (pun intended) steadily. I found this, however and it fixed almost everything: http://www.vogons.org/viewtopic.php?f=9&t=34931 It is a wrapper for old graphics APIs, named dgVoodoo. It is quite recent and, surprisingly, works just fine :-) The readme explains all and it's quite simple too.

Last but not least, if you decide not to use this but try things out yourself, you may need this: http://www.oldversion.com/windows/directx/ It's an archive containing every DirectX from 1 to final 9.

Have fun, everybody and let me know how it goes if you try it out ;-)

to GameBoomers, Alaster. Thanks very much for the info - it's appreciated.

Thank you for having me :-) At your service, anytime.

You won't be able to downgrade your DirectX.