Red Hat Bugzilla – Bug 64220
System does not detect PS2 mouse on extender
Last modified: 2007-04-18 12:42:22 EDT
Description of Problem:
Have a rack mounted computer w/ extender cables to the desk with displays,
keyboard, and mouse. Total cable length is about 25 feet. With kernel
2.4.9-6smp, the system operated normally. After installing either skipjack
beta 1 or beta 2, the mouse is not detected. Keyboard is OK. Have swapped
keyboard and mouse extender cables - no change in behavior, both cables have
continuity. Have reproduced this problem on three (of five) machines in house.
Not sure if the fourth machine has shorter extender cables. The fifth machine
does have much shorter cables (10 feet max).
Version-Release number of selected component (if applicable):
Kernel 2.4.18-0.13smp does not work
Kernel 2.4.9-6smp does work
Use extended cables with [keyboard and] mouse.
Steps to Reproduce:
1. Boot system w/o extender cables. (init mode 5)
2. Attach extender cables.
3. Switch to console window (Ctrl-Alt-F1) and back to X server (Ctrl-Alt-F7).
Mouse movement does not move pointer. Review of XFree86 log file indicates
(EE) xf86OpenSerial: Cannot open device /dev/mouse
No such device or address.
You get a similar error if you...
so I doubt its an XFree86 problem.
The sequence of steps works OK if the same mouse is not on extender cables.
Mouse works OK after attached to extender cables.
We realize the cables are long in this situation, but are greatly surprised
that it begins to fail with the updated kernel.
Could you try the latest build from rawhide ? There have been some PS/2 fixes in
OK. Downloaded kernel-smp-2.4.18-0.22.i686.rpm from rawhide. Installed and
rebooted one of the failed systems. Now works w/ the extender cables. Thanks.