[quake2] Highly erratic mouse behavior

Anders Storsveen wakko at generation.no
Sat Mar 19 22:09:56 EST 2005

anyone else got the negative movement bug that I have in glx?
anyone have any idea what it might be?

On Fri, 18 Mar 2005 23:53:55 +0100, Anders Storsveen <wakko at generation.no>  

> bump, check out the demo.
> On Fri, 18 Mar 2005 01:24:05 +0100, Anders Storsveen  
> <wakko at generation.no> wrote:
>> heres the demo, it actually didnt seem mouse acceleration was on in q2
>> now. but its still definantly on in q3...
>> On Thu, 17 Mar 2005 21:52:47 +0100, Anders Storsveen  
>> <wakko at generation.no>
>> wrote:
>>> On Thu, 17 Mar 2005 12:49:51 +0100, Julien Langer <jlanger at zigweb.de>
>>> wrote:
>>>> On Sa, 2005-03-12 at 17:35 +0100, Anders Storsveen wrote:
>>>>> I'm 100% sure that this problem is mouse accelleration related. I  
>>>>> have
>>>>> been whining about this for years now, linux
>>>>> seems to have mouse accelleration that is impossible to turn off...
>>>>> It's
>>>>> like this in every game! I've posting
>>>>> around the net on this, and no one seems to figure it out.
>>>>> I've done xset m 0 0 and set the mouseaccel to 1x in kde. but nothing
>>>>> works.
>>>>> If you try to move the mouse very slowly you will get the following
>>>>> artifacts, in SDL you will get no or slow
>>>>> movment, and in glx you will get negative movment and if you speed  
>>>>> up a
>>>>> little you will get zero movment and then
>>>>> correct movment again. I'm definantly sure that this is some problem
>>>>> with
>>>>> how X or some other backend handles mouse
>>>>> and mouse accelleration. I'm also betting that, in regular x with  
>>>>> mouse
>>>>> acceleration set to "off" there is still
>>>>> mouse acceleration, even though it is hard to detect.
>>>>> If someone made an app that compared raw mouse input to the length
>>>>> actually moved on the desktop I'm sure the
>>>>> length would change dependant on the speed, even though the physical
>>>>> length moved stays the same. But what I'm sure
>>>>> of is that mouse acceleration in the game is what this problem is, it
>>>>> also
>>>>> affects other games including quake3!
>>>>> It's stupid to have to dualboot to windows to play games that are
>>>>> native
>>>>> in linux and performes very well (and even
>>>>> better in the case of q3) in linux when compared to windows.
>>>> Hi,
>>>> I don't see such a behavior on my machine.
>>>> No matter how fast I move the mouse, the distance it covers is always
>>>> the same... in q2 and in q3.
>>>> And I have even enabled mouse acceleration in Gnome.
>>>> But it's true that there's no movement with SDLGL if the mouse is  
>>>> moved
>>>> very slow.
>>> wel, that would seem that you have acceleration, only its constant at
>>> higher speeds. Do you have the negative movement when moving really  
>>> slow
>>> with glx?
>>> btw: I could make a demo for you guys to show what I mean.

Anders Storsveen
The Next Generation

More information about the quake2 mailing list