Unreal Tournament Forum

After upgrading to CrossOver Games 8.0 on my MacBook Pro (with Snow Leopard), I found Unreal Tournament to be unplayable: the mouse behaviour is completely whack. In the menus, the pointer moves very slow and jerky and in the game itself, the mouse controls are either too slow or too fast (depending on the extent of the mouse movement). There's virtually no middle ground: the speed jumps directly from crawling to lightning quick. That's neither a problem with the settings (see above), nor with the mouse (I tried three different mice).

I'm not yet sure if the same problem affects all FPS, but I would assume that's at least the case for other UT engine games. A pity, since the game otherwise runs perfectly.

Hm, this is really strange. May be the Problem is limited to MacOS ?
I've been testing UT99 with CrossOver Games 8.0 under Ubuntu 8.10 x64.
Everything worked fine. Mouse movement worked fluently and no issues observed.

UT has major issues with CPU throttling - it reads your CPU speed at the start and any changes will throw it all out of whack. I had to set the CPU throttle to Performance (full speed all the time) else in game it would get mental fast. Check you've not got Speedstep or the like turned on.

That's an issue that is in the native Windows and Linux clients as well, CPU throttling didn't exist at the time.

Nope, it's definitely not a performance problem. The game runs just perfectly smooth and at the right speed – just the mouse controls are broken.

EDIT: Oh, yes – I found my fears confirmed (see above). The problem extends to all FPS, like Half-Life, though to a somewhat lesser extent there.

So you're seeing a kind of mouse acceleration effect? That's strange.

Carl Morgan wrote:

So you're seeing a kind of mouse acceleration effect? That's
strange.

Actually not. A certain acceleration is built-in in every operating system's drivers and often even in the mice's firmware. The problem is that COG is handling the mouse speed wrong.

CrossOver doesn't "handle" mouse speed, at all. It just receives mouse movement events from the OS and conveys them to the Windows program.

Have you tried adjusting the OS's mouse tracking speed?

You mentioned that this happened after you upgraded to CrossOver Games 8 on Snow Leopard. This implies that everything had been working for you with some earlier version of CrossOver Games (presumably on an earlier version of Mac OS X). Is that right? Had you tried CrossOver Games 8 on Leopard? If you're game from a bit of hackery, you might try this technique to run CrossOver Games 7.2.2 on Snow Leopard.

I'm wondering if we can distinguish whether it's the version of CrossOver Games or the OS which introduced this issue.

Ken Thomases wrote:

Have you tried adjusting the OS's mouse tracking speed?

Yes. Several times. I tried both the in-game settings as well as the OS's settings. No avail.

You mentioned that this happened after you upgraded to CrossOver
Games 8 on Snow Leopard. This implies that everything had been
working for you with some earlier version of CrossOver Games
(presumably on an earlier version of Mac OS X). Is that right?

Yep. Correct.

Had you tried CrossOver Games 8 on Leopard?

No, I upgraded to SL before upgrading to CXG 8.

If you're game from a bit of hackery, you might try
[link=http://www.codeweavers.com/support/wiki/CXOffice7underSnow]this
technique[/link] to run CrossOver Games 7.2.2 on Snow Leopard.

I'm wondering if we can distinguish whether it's the version of
CrossOver Games or the OS which introduced this issue.

I might try that, when I have the time, but after submitting a support ticket, I saw I'm not alone with this problem. At least in one case, the submitter stated he still uses MacOS X 10.5, so it would seem CXG 8 is the culprit.