optical mouse, cursor speed varies

b-llwyd

I am using a simple microsoft intellimouse with intellieye (two buttons, wheel, optical), and I get this odd behaviour from time to time - the mouse cursor speed jumps between two different speed settings when I start my linux box. Either its slow...or its fast. I like it fast, so I would either have to fiddle with mouse settings from a control panel or something, or simply reboot the computer. (I tried rebooting X only, but it didnt seem to me it was working).

Has anyone else experienced this problem with optical mice? I am having these thoughts that the culprit is my mouse mat - because i also notice 'shakey' mouse cursor behaviour now and then - the cursor skitters back and forth on the place..no big movements, just enough to freak me out. Maybe the laser beam is having trouble focusing on a specific point on the mat.

theneopro · Tux's lil' helper Joined: 08 Aug 2002 Posts: 90

What are the settings you used in the /etc/X11/XF86Config file
Especially in the InpuDevice Section that states the mouse protocol
also the refresh rate is within the correct parameters??

-Check it out

Mykey
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That sounds wet!!!!

pilla · Posted: Wed Oct 09, 2002 2:40 am Post subject:

This is the config I use for mine (conected in the USB)

b-llwyd · Posted: Wed Oct 09, 2002 7:29 am Post subject:

I think I have the same config as Bloody Bastard, but I can't confirm it ATM. I saw another post concerning the herz/refresh rate... (option "refreshrate" 1800?) is that what you meant, theneopro?

pilla · Posted: Wed Oct 09, 2002 3:36 pm Post subject:

do you have gpm enabled?

b-llwyd · Posted: Wed Oct 09, 2002 5:53 pm Post subject:

I have GPM installed, but not enabled (can't find it in any of the /etc/runlevel 's, nor with ps aux | grep gpm).

b-llwyd · Posted: Wed Oct 09, 2002 5:55 pm Post subject:

Hmm...though I did add

sa · Guru Joined: 10 Jun 2002 Posts: 450

may i suggest changing your linux usb driver.
for me < > UHCI Alternate Driver (JE) support
gave me the problems that you are describing.

changing it to this fixed it:
<*> UHCI (Intel PIIX4, VIA, ...) support

hth,
sa

TenPin · Guru Joined: 26 Aug 2002 Posts: 500 Location: Kansas City

I would suggest that a resolution setting of 1800 is far too high. I assume that the setting is in dpi and the very best optical mice have a dpi of about 800.

I set my average PS/2 ball mouse to Resolution 200 and it gives a very nice improvement. ie. I can do xset m 1 1 (mouse moves in 1 pixel jumps with no acceleration) and cover my large desktop with littly mouse movement.

I have no idea if this setting works with USB mice but you can always convert them to PS/2.

Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "IMPS/2"
Option "Device" "/dev/mouse"
Option "ZAxisMapping" "4 5"
Option "SampleRate" "200"
Option "Resolution" "200"
EndSection

Vlad · Posted: Wed Nov 20, 2002 3:48 am Post subject:

FINALLY! My mouse works at a reasonable speed. I was going nuts with the mouse moving that slow. Bugs the hell out of me that the KDE developers didn't put a Mouse Speed setting in the Control Panel.

Adding