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ps2 to usb - anyone try this? - pic attached

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ften:

        I haven't had any issues hot-swapping my keyboard on my computer and the motherboard is new. Probably switched it back and forth between my Mame computer/laptop/main computer a few hundred times in the last 2 months. My laptop will freeze the mouse though if I try hot-swapping the mouse.

-FTen

Tiger-Heli:
KenToad was asking about using a PS/2-USB adapter with the KeyWiz, so I did some play testing and verification of my QVS PS/2 to USB adapter last night and got very weird results.

Long story short is I saw different results with the keyboard connected, with the KeyWiz connected, and in MAME.

I previously posted that with the keyboard hooked up, the first key would stop registering after I pressed and released a second key. 

I verified this in Word.  I held down

KenToad:
Wow, Tiger-Heli, thanks a lot, I was still wondering about that, although I hadn't found the time to go pick one up.  Also, I'm still debating just going the road of reconfiguration and ordering a GP-Wiz from RandyT as part of my next order.  So, thanks a million.  Also, I've seen some Radio Shack branded ones and also the Compaq branded one from the pic at the top of this thread.  Do you think there might be any difference in performance between different adaptors,? 

The cool thing about the "big hulking CP" used with the laptop is that I can connect to someones TV from the S-Video port--kind of a cheapo portable Mame system.  I originally had my CP set up with a pair of PSX pad hacks and that meant that, not only was it portable, I could also plug it into any old playstation for Tekken or Tony Hawk.  The KeyWiz is a great product, though, and nicely replaced my second failed hack, which I realized wasn't really up to par for performing the special moves on SFII.  It might have been the adaptor, but the KeyWiz was the twenty-dollar pain reliever that also let me setup my favorite virtual pinball games without any intermediary programs running in the background. 

Well, I have more to think about.  Thanks again.

Cheers,
KenToad

Tiger-Heli:

--- Quote from: KenToad on May 08, 2005, 06:11:21 pm ---Also, I'm still debating just going the road of reconfiguration and ordering a GP-Wiz from RandyT as part of my next order.

--- End quote ---
That should provide better performance, although you would have to re-wire and re-configure everything and use RBJoy or something similar for Visual Pinball.

--- Quote ---Also, I've seen some Radio Shack branded ones and also the Compaq branded one from the pic at the top of this thread.  Do you think there might be any difference in performance between different adaptors,?

--- End quote ---
Mine was a QVS (MicroCenter) one, and that's the only one I've tried, but based on Andy and Randy's posts above, I would guess performance differences might be likely.

What I am not clear about is that I saw poor performance with the adapter and the keyboard in MAME, Word and Ghostkey, and poor perfromance with the adapter and the KeyWiz in Word and Ghostkey, yet pretty good performance with the adapter and KeyWiz in MAME.  Something there doesn't add up. . . 

--- Quote ---The cool thing about the "big hulking CP" used with the laptop is that I can connect to someones TV from the S-Video port--kind of a cheapo portable Mame system.

--- End quote ---
Ah, sweet!!!

--- Quote ---The KeyWiz is a great product, though, and nicely replaced my second failed hack, which I realized wasn't really up to par for performing the special moves on SFII.

--- End quote ---
And that may make a difference with this also.  I play mostly the classics and 1942 and PacMan just aren't that demanding on an encoder.  If you need special moves in SFII and will be using the laptop more than occasionally, you may well be better off with the GP-Wiz and re-configuring.  Even with an intermediary program when you play VP!

Tiger-Heli:
Did some more testing and have some updated results - using WinXP instead of Win98, but don't think that matters. . .

The adapter has two problems similar to what I experienced with normal keyboarding:

First, if you hold a key depressed, the key will register for about 1 second, not register for about 1/3 second, and then register again indefinitely.

Secondly, there is a slight but perceptable lag in all key response.  I would estimate it around 0.003-ish seconds.  It is faster than you (I) can mash the buttons, so I doubt it has a huge effect on gameplay, but it is there.

What effect this has on games depends on the games you are playing - In games like Tiger-Heli, 1942, Twin Cobra, Gyruss, etc., you rarely get to hold the stick in one position for very long, which is why I probably didn't see it previously.

In games like Battlezone, or Top Gunner or PacMan, it is just long enough to allow the tanks/ghosts to catch up with you when you otherwise would have gotten away, and is therefore unacceptable.

In short, this would only be acceptable to me for very occasional use with a laptop PC or sth, where I had no other option.

Again, I have heard reports of different sets of problems with other brands of adapters, and YMMV.

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