Permissions problem - MX510 Optical Mouse
 

Hi!

I have a Logitech mouse connected to an usb port. I tried to configure the buttons and went to ( in KDE control center) Peripherals ---> mouse and saw a tab named MX510 Optical Mouse. There it is written:

You have a Logitech Mouse connected, and libusb was found at compile time, but it was not possible to access this mouse. This is probably caused by a permissions problem - you should consult the manual on how to fix this.

..

Well, I don't have a manual, I never had one. Does anybody know what this means? The mouse is working well by the way and I have finally fixed the issue with the mouse wheel. It seems to me as if there is some kind of support in KDE for my mouse ( I did not tell KDE that I have a MX510 ) and if that is right I would like to use this support.

I have changed the permissions of /dev/input/mice to 666 but I still have this problem. The permissions of libusb are alright I think. I am using the imps2 protocol. I have also tried the explorerps2 protocol, but I still cannot use the KDE support for my mouse.

THX,

max.

Re: Permissions problem - MX510 Optical Mouse
 

Firstly, let me say that i have the same mouse. I like it very much. It works great.
This "MX510" tab of the KDE control center is useless but anyway.
About your questions:

1) /dev/input/mice has nothing to do with this
If i am correct the problem is that libusb can't open the proc entry due to permissions problem as the error message suggest.
I will tell you what to try in order to check if this is the problem.

run lsusb (or cat /proc/usb/devices)
You will get what bus and device is your mouse.
(In my case it is bus 003 and device 002)

Then run control center again and it should work.
I believe you can only change the resolution setting (400/800 dpi) that why i said it is useless.

I use lmctl to change the resolution to 800. It is a very good program and has many more features than the KDE panel.
I use it also to disable the SmartScroll/Cruise control because i don't like it.

I hope i helped.
If it doesn't work or you have any more questions please tell.

Thx!

I changed the permissions of the device and I can use the pannel now. But you are right, this support pannel is not very useful at the moment. I thought it could be used to configure the buttons of the mouse once kde has access to the device. But thx anyway, I've learned something :-)

P.S.:

Yes the mouse is great. I love it. I bought it for playing Warcraft III because the mouse that came with my laptop really wasn't good enought for that game. I was impressed what big difference it is to play with a good mouse.

greetings,

max.

1) I didn't notice the username before :) "athanatos"
Are you Greek by any chance ?

2) You can use 7 keys by using "ExplorerPS/2" protocol in xorg.conf (Left,Right,Middle,Scroll Up,Scroll Down,Back,Forward)
or all 10 keys if you use the event interface (evdev)

I include some sample configs

7 Keys config
10 Keys config (with old evdev patch from Debian or Gentoo) (you must recompile Xorg)
10 Keys config (with new evdev patch. At this time you need to compile Xorg server from CVS)
3) If you fell the mouse heavy then unscrew it and remove the weight.

Thank you again! That is some really helpful information. I used your sample for the 7 keys config and it works :) .

I am not Greek by the way, I am born in Vienna and I also don't understand talken modern Greek, but I have some skills in reading and writing Old Greek because I learned that in school. I picked 'athanatos' just because I thaught it is a cool nick ^^.

Btw. I am really happy.. I finally have created a system that fully works for me. I don't have anything to configure at the moment. Time to relax and to enjoy using the system :) . Hurray! Thx to all the people on linuxquestions ^^ b

greetings

max