Quest for Glory 2 speed bug

Report bugs or find solutions to hardware problems regarding KQ1VGA and KQ2:RTS.

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Chris724
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Posts: 4
Joined: Wed Jul 11, 2012 12:27 am

Quest for Glory 2 speed bug

#1 Post by Chris724 » Wed Jul 11, 2012 12:30 am

For some reason, the speed in QFG2 randomly goes from fast to slow. The speed slider will show no difference in gameplay, and combat is sluggishly slow. This has only happened recently, I played the game months ago on the same computer and this did not happen. Any help would be appreciated.

Markus Ramikin
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Posts: 106
Joined: Sun May 03, 2009 1:26 am
Location: Holy Terra

Re: Quest for Glory 2 speed bug

#2 Post by Markus Ramikin » Thu Jul 12, 2012 11:59 am


Chris724
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Posts: 4
Joined: Wed Jul 11, 2012 12:27 am

Re: Quest for Glory 2 speed bug

#3 Post by Chris724 » Sat May 18, 2013 5:53 am

Bumping this, because it's happening to me again on Windows 8. I followed the advice of another forum and made a batch file to have it run on one core, but when the bug is working all that does is make it slightly less slow then if I started it from the launcher. I don't know if you guys have a permanent fix yet, but any help would be nice.

BigB0SS
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Joined: Mon Oct 15, 2018 4:47 pm

Re: Quest for Glory 2 speed bug

#4 Post by BigB0SS » Mon Oct 15, 2018 4:54 pm

I think I figured out what the problem is.

I was playing QFG2 VGA on newer desktop (Windows 7 x64 OS). This computer has an HD graphics card installed in PCI slot. The game slowed down over several play sessions. Regardless of putting the speed at full setting.

So I pulled out my old desktop (Windows XP x32 OS). This computer has an old geforce 6200 graphics card installed in PCI slot. The game also slowed down over several play sessions. Regardless of putting the speed at full setting.

However, I tried disabling the geforce 6200 graphics card and enabled the integrated graphics (the graphics that are built into the motherboard). That seems to have solved the speed problem. Played many sessions since then, and no speed issues.

So, for whatever reason, the speed issue seems to be related to graphics cards (perhaps how the gpu on the graphics card interacts with the cpu on the motherboard).

hammerblade
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Joined: Mon Jun 17, 2024 3:35 am

Re: Quest for Glory 2 speed bug

#5 Post by hammerblade » Mon Jun 17, 2024 3:37 am

This works like a charm as of today (16-Jun-24):

1. Install Adventure Game Studio (As of writing, on version 3.6.1)
2. Navigate to the installation directory
(should be 'C:\Program Files (x86)\Adventure Game Studio 3.6.1')
3. Copy 'acwin.exe' AND 'SDL2.dll'
4. Paste into the installation location of QFG2 VGA (should be 'C:\Program Files (x86)\AGD Interactive\Quest for Glory II')
5. Run 'acwin.exe' from the QFG2VGA location
6. Enjoy QFG2VGA at blazing fast modern PC speeds!

(OPTIONAL: In the QFG2 VGA directory, rename 'Qfg2vga.exe' to 'Qfg2vga(backup).exe', then in the same directory, rename 'acwin.exe' to 'Qfg2vga.exe'. This will permanently fix the problem on your installation, and you can run the game normally, such as from the launcher)

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