Problems with USB Devices

Support knowledgebase (usb_prob73)
Applies to

SuSE Linux: Version 7.3
Kernel: Version 2.4.10

Symptom

You have a USB keyboard, a USB mouse, or both, which worked perfectly during the installation. However, they no longer work once the installation has been completed.

Cause

The cause is the double entry of the USB modules that have to be downloaded.

Solution

Enter the following command


	cat /etc/modules.conf |grep "usb-hostadapter"


Note:   | = pipe is generated with AltGr + <


to check if the entries:


	alias usb-hostadapter usb-uhci

or


	alias usb-hostadapter usb-ohci

are included in the file /etc/modules.conf. If yes, please perform the following modifications with YaST2:

Select in the menu --> System -> RC.Config-Editor -> Base-Administration -> Common-Basics -> initrd_modules

and remove the modules listed below:


        usbcore
        usb-uhci (usb-ohci)
        input
        hid
        keyboard
        mousedev

Alternatively, you can do it manually by opening the file /etc/rc.config with an editor of your choice and searching for the section:


INITRD_MODULES

You can, for example, change the line from



INITRD_MODULES="reiserfs usbcore usb-uhci input hid keybdev mousedev"

to


INITRD_MODULES="reiserfs"

Now save the file. In both cases the following commands must be executed as root user in a terminal or shell:


	mk_initrd

	/sbin/lilo

After restarting the system, all USB devices should work again.

If editing is not possible because your keyboard does not work, please use the first CD to start the system with the option "Boot from an installed system".


Keywords: USB, MOUSE, KEYBOARD

Categories: Hardware

SDB-usb_prob73, Copyright SuSE Linux AG, Nürnberg, Germany - Version: 21. Feb 2002
SuSE Linux AG - Last generated: 21. Feb 2002 by ip (sdb_gen 1.40.0)