Mouse lag with Mandrake 10.0

Xathin · 05-31-2004, 02:59 PM

I have not used Linux very much, and I have been looking tirelessly through all the forums I could find to no avail.

I have a Logitech DualOptical USB mouse which seems to lag quite a bit. This is not related to video frame rate or cpu usage. I have tested both of these with the test software available, and it reported back acceptable numbers for both. CPU usage was <15%, and frame rate was around 70fps. I have the Sapphire ATI Radeon Atlantic 9600 video card and AMD Duron 800Mhz CPU.

I have the mouse connected through USB and have tried various drivers. The only one which seems to work is the universal mouse I believe.

At first I thought it might have been caused by lack of 3D acceleration, but with the 70fps from the tests, I do not believe this is the case. I have the latest drivers for my video card installed, and fglrxinfo reports ATI, not Mesa3d.

The mouse lag occurs constantly while I am running Mandrake, even with nothing actually running.

Any suggestions to this problem would be greatly appreciated. Unfortunately I do not have or can not find the USB-PS/2 connector, so I am unable to test this. The mouse works perfectly fine through Windows XP with no lag at all.

I have run other Linux distro's in the past, and have not encountered this problem using the exact same setup. I'm wondering if this is a problem with the new Linux kernel, or possibly something with my current setup for my mouse.

g452 · 05-31-2004, 03:20 PM

hi - can u tell me when u use the mouse - does it feel like the system is getting hicups ??? like u move the mouse and it just doesn't move (or it lags) for that second(s) ???

cause i rebuild my slackware to kernel 2.6.5 and i seem to have the same prob as u have - and would love to know why this happens -

laterz

Xathin · 05-31-2004, 04:35 PM

The mouse is constantly lagging. When I first move the mouse, it takes a bit to respond right away, but after it starts moving, it still lags a bit. I'd say it's about a second or so behind the movements of the mouse. If the mouse moves enough, it will jump from point to point instead of a fluid motion from one spot to the next.

I will be meeting with the person I got the distro from to find out if he knows what ma be the problem. If he knows and it works, I will post the solution here.

If anyone else knows why this might be happening, please feel free to suggest a solution.

vectordrake · 05-31-2004, 08:53 PM

I had that problem with a Labtec mouse I bought once. I searched Google for about 8 hours, I mean scoured it (that's how I am). The result I found was to add a line to the mouse section of my /etc/X11/XF86Config (or XF86Config-4) file. You wanna add this option.

Code:

Option  "Resolution"  "400"

You can play with different values, but I found that 400 worked for that mouse. Microsoft usually defaults its mouse driver to 300dpi, so 300-600 will work with reasonable usefulness. Good luck. I hope that your problem is the same as mine was.

Xathin · 05-31-2004, 11:31 PM

I changed the resolution option in the XF86Config-4 file, and it didn't change anything. The mouse is still lagging like crazy, so I don't think it's a problem with the resolution.

vectordrake · 06-01-2004, 07:02 AM

Did you shutdown "X" and restart it before you wrote this. I know it sounds silly, but I left that off...

Xathin · 06-01-2004, 08:57 AM

Yes. Once the drivers were installed and the XF86Config-4 file modified, the computer was completely restarted.

vectordrake · 06-01-2004, 05:27 PM

Can you post the mouse section of your XF86Config-4?

Xathin · 06-01-2004, 05:43 PM

The following is the settings for the mouse section of the XF86Config-4 file.

Just as a side note, the mouse works perfectly fine in the 2.4 kernel. Lags slightly when the cpu is working, but no worse than Windows. I believe it might be the 2.6 kernel not working properly with many of the USB mice.

Section "InputDevice"

# Identifier and driver

Identifier "Mouse1"
Driver "mouse"
Option "Protocol" "ImPS/2"
Option "ZAxisMapping" "4 5"
Option "Device" "/dev/input/mice"

# When using XQUEUE, comment out the above two lines, and uncomment
# the following line.

# Option "Protocol" "Xqueue"

# Baudrate and SampleRate are only for some Logitech mice. In
# almost every case these lines should be omitted.

# Option "BaudRate" "9600"
# Option "SampleRate" "150"

# Emulate3Buttons is an option for 2-button Microsoft mice
# Emulate3Timeout is the timeout in milliseconds (default is 50ms)

# Option "Emulate3Buttons"
# Option "Emulate3Timeout" "50"

# ChordMiddle is an option for some 3-button Logitech mice

# Option "ChordMiddle"

EndSection

vectordrake · 06-01-2004, 05:49 PM

Did you try uncommenting the ChordMiddle option? Do you have a PS/2 adaptor for that mouse with which you could check to see if it was your USB pathway that is causing this?

Xathin · 06-01-2004, 07:13 PM

I haven't tried uncommenting anything as of yet. I will try that later.

I do not have a PS/2 adapter at the moment. I can't seem to find the stuff the mouse came with right now. As I said, the mouse works perfectly fine with the 2.4 kernel with no lag present, unless the computer is highly active.

I am not at home right now, so I am unable to try much at the moment, but once I get home I will try some more testing to see if I can get it to work properly.