Linux 2.1 not regconising Keyboard and Mouse (PE3250)
Ashley_Ng at Dell.com
Wed Sep 29 18:25:00 CDT 2004
5 x PE 3250 (PERC4/DC, 4GB 266mhz SDRAM) acquired preloaded with Dell
copy of Red Hat(R) Linux(R) v2.1 AS 64-bit Update 3 racked in 2x PE4210
respectively (3 and 2 server each rack)
All the PE3250 is connecting to the APEX KMM 1x8 Switch Box KVM switch
by means of a USB > PS/2 KMM RJ45-SERIAL converter along with the
USB-PS2 I/O CBL.
Problem is intermittently the mouse and keyboard will not respond. The
system is still running ok but keyboard and mouse remains "silence".
Methods tried are :
1) Editing the modules.conf, this can be acheived through Linux rescue
The keyboard and mouse never fails to respond in the rescue mode.
1. Login as root.
2. Change to the /etc directory.
3. Open the file modules.conf in a text editor.
4. Add the line below usbkbd hid.
5. Save the file.
6. Reboot the system for the changes to take effect.
The method had since improve the stability and avalability of the
keyboard and mouse but not yet 100% bullet proof as once or twice the
same problem emerge out of 10 reboots.
Still 2 server exhibits full immunity to this method.
2) Next we try Kudzu
1. Plug the mouse and/or keyboard into the rear USB ports on the
system, or vice versa.
2. Run kudzu from the Linux command line. Supposing this is the
time where it will detected the USB ports.
3. Plug the keyboard and/or mouse back into the front/back USB
4. Run Kudzu again.
3) Another similar move is to ran setup at the command prompt and have 3
servers selecting 2 button mouse (PS/2) and 2 servers selecting 2 button
4) Direct USB kb/ms connection looks good to isolate the problem, but
unfortunately will hang with kernel errors on the next day too.
Basically there were 2 x PE3250 keyboard and mouse totally will not work
upon a normal boot.
Ashley_Ng @ dell.com
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