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I just installed a new Logitech trackball. Everything works fine but the trackball motion is far too sensitive. I even added a min and max speed to my xorg.conf, but it doesn't seem to make any difference...
I tried playing with the "Resolution" option as well as the "SampleRate" and "BaudRate" (those last two are supposedly almost always not needed, but I can't find a good explanation of them). I just can't get this trackball working nicely. It's a new Logitech TrackmanWheel (if that helps).
I guess I should have described the problems better:
It is too sensitive in Linux. A small push on the trackball causes the mouse to move too much. I can't seem to find a way to change this nicely. It also moves a bit too jerkily.
It works fine in windows, but is very frustrating to use in Linux.
I tried `xset m...` too but I couldn't get it working well. Does anyone else use this trackball under linux? maybe you could tell me your configuration?
Last edited by Lord Zoltar; 07-13-2005 at 05:55 PM.
Those xorg config settings are fine. The question is... what desktop/window manager do you use? KDE has a mouse control center to fine tune these details. I'm sure other environments would be similar....
I use KDE. It does have a mouse adjustment centre, but it's not very useful. It was the first thin I tried playing with, but it didn't help much. I can set the acceleration to between 1.0x and 20.0x, and the threshold also has the same range of values. I can't enter numbers out of this range. Right now I have acceleration set to 1 (it moves smoother, the lower it is, and I have the threshold set to 11 (but the value for this seems to make no difference at all... I wonder if it's even actually working?).
Are there other methods to adjust the mouse speed? xset seems to work best so far, but I'm not sure where I should put the xset line so that KDE won't override it with it's own values.
And I'm still curious to the "BaudRate" and "SampleRate" in the xorg.conf file. In windows, I can set the sample rate for the mouse up to 200. Would it work in Linux too?
I tried the IMPS/2 protocol, didn't seem to do much...
But I looked at the comments, and there was also a Logitech protocol. So I tried that, and yeah, the trackball motion was a lot smoother and better. The only problem is that the scroll wheel no longer works. And yes, I have the "ZAxisMapping" "4 5" line.
I don't know how you can stand the tracking with the IMPS/2 protocol... i find the motion to be jerky and overly sensitive... I use the Logitech protocol and I get very smooth and fine control over the pointer, but I STILL can't get the scroll wheel to work. I even added `Option "Buttons" "5"` right before the ZAxisMapping line, and it didn't seem to do anything. Does the Logitech protocol even support 5 buttons? also, is there a way to adjust the SPEED of the mouse? I don't mean threshold) or acceleration, Windows allows all three (speed, accel, threshold) to be adjusted. If I could adjust the speed, then I could just reset the protocol to Auto or IMPS/2.
Location: Moriarty, NM, USA about 100 yards form Rattle Snake Coutry
Distribution: Slackware , Ubuntu
Which version of KDE & X are you using? I am on KDE3.4.1 & Xorg 6.8.2. And admittedly I tend to like a lively mouse pointer, I find setting the acceleration to 1x in the KDE control panel to slow it down considerably (too slow for my taste).
And the scroll wheel still works, at least for me. And it is smoother but not quite as slow as my first attempt.
I have mine set up through the PS/2 port, not sure if that would matter but worth a mention.
BUT...... to get it all working, I first ran mouseconfig (as root) and set the mouse to be an IMPS/2 mouse (I put the trackball back onto the PS/2 port). THEN, I edited the xorg.conf file to have the IMPS/2 protocol. Then I restarted X and things got weird... the keyboard would sometimes stop responding and I'd have to restart X again. Also,the tracking got very slow. It ended up once that I had to reboot the machine. And then, everything seemed to work very nicely ...mostly. I still think the tracking was smoother with the logitech protocol (and I'll try it again when I have time to spare), but I don't want to try it right now because it's still PRETTY smooth and the scrollwheel works.
I still feel that I don't have as fine control as I did with the mouse. Do other trackball users feel this too? I just tried tracing some pattersn in Gimp. These are easy with the mouse, but very difficult with the trackball.
One last thing: I tried the Resolution line like you had, and my X server wouldn't even start . wtf?
Ok, I had to go back to the Logitech Protocol. It was just too jumpy on IMPS/2....
Does anyone know a way to adjust Mouse SPEED? Windows has a setting for the mouse called speed. NOT Acceleration or Threshold... it has those TOO. If I can adjust the speed then I'll go back to using IMPS/2 protocol...
OR......... is there an ALTERNATE way to set the scrollwheel? So that I can get it working with Logitech? I'm really getting very very frustrated with this... I'd go back to a mouse, but it is just getting too uncomfortable and painful. the Trackball would be great if I could get smooth tracking AND a working scrollwheel at the same time.