PS/2 keyboard broken by "legacy USB keyboard" option in BIOS
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux-source-2.6.15 (Ubuntu) |
New
|
High
|
Unassigned |
Bug Description
This bug was detected at the first reboot after upgrading from Breezy to Dapper 6.06.
My computer is a desktop PC (motherboard ASUS P4PE-X) with an ordinary PS/2 keyboard and a USB mouse.
Typical scenario :
- No error during reboot.
- The GDM login screen appears
- Typing in the username text field has no effect at all.
- Num lock and Caps lock keys have no effect on the keyboard LEDs.
When booting in "recovery mode", there is no keyboard input in the console either.
I tried to investigate the problem remotely by connecting another PC to my Ubuntu box through SSH.
Results : all logs seem to be fine.
I solved the problem by blacklisting the "psmouse" kernel module in /etc/modprobe.
I found this solution in an old thread at the following address :
http://
Well, the "solution" did not work as well as I thought.
The problem reappeared after a second reboot.
It seems that psmouse is not related to my problem at all.
Sometimes, keyboard input becomes effective after "a certain time" after rebooting.
But today, my computer was powered on all day long, displaying only the GDM login screen, and the keyboard did never work.
A last precision : mouse input works perfectly in GDM : I can play with the menu, reboot, etc.