My brother is having problems with the mouse on a 486 system I gave
him. We can't figure out why it isn't working correctly. It works with
Windoze apps and the BIOS bootup menu, but not with XFree86 (3.3.6
IIRC). We've tried every combination of driver and protocol there is,
and it still acts crazy! We've tried two serial mice (a trackball and
some other mouse) and they both do the same thing:
> Another thing I discovered last night was that the mouse will move
more when
> I roll the trackball *very* slowly. By move I mean that it jerks
around
> usually to the left. When I move the trackball normally, the
cursor
> usually stays still and jerks around rarely.
Some additional notes:
- It's a serial, Logitech (Trackman?) trackball.
- The system is a 486/66 running Red Hat Linux 6.1
- It is single-boot system.
- Yes, we've searched deja.com and groups.google.com again and again
for quite a long time now.
Any Ideas?
- Bob Glover
"I hate meeces to pieces!"
> Bob,
>
> The mouse driver you were talking about on the phone was gpm. I could not
> find it being loaded anywhere. ps didn't show it running either. gpm
> definately could have been the culprit, though.
>
> I looked in /proc/interrupts to see if the mouse irq was there and found
> this instead:
>
> CPU0
> 0: 376138 XT-PIC timer
> 1: 9717 XT-PIC keyboard
> 2: 0 XT-PIC cascade
> 5: 1 XT-PIC soundblaster
> 8: 1 XT-PIC rtc
> 13: 1 XT-PIC fpu
> 14: 98535 XT-PIC ide0
> 15: 5 XT-PIC ide1
> NMI: 0
>
> It looks like there's no irq set for the serial mouse. Am I reading this
> wrong?
>
> Another thing I discovered last night was that the mouse will move more when
> I roll the trackball *very* slowly. By move I mean that it jerks around
> usually to the left. When I move the trackball normally, the cursor
> usually stays still and jerks around rarely.
>
> Also, I looked at the permissions for /dev/ttyS0 which /dev/mouse was linked
> to. /dev/ttyS0 had permissions crw------- so I changed the permissions to
> crw-rw-rw- hoping against hope to fix things and of course nothing improved.
>
> Still plugging away at the mouse problem and learning a bit more about X and
> Linux along the way.
>
> Jim
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