HAL unloads keyboard driver when one of the few keyboards is disconnected

Submitted by Yuri

Assigned to Xorg Project Team

Link to original bug (#60069)

Description

I have the main AT keyboard and an additional USB keyboard that is implemented as a side-effect of mouse.

Disconnecting the mouse (with included in it keyboard) causes AT keyboard to stop functioning. This is because HAL-support code in xorg causes it to unload the keyboard driver, even though another keyboard is still attached. (see stack below).

I suggest Xorg should only disable the keyboard driver when the last keyboard is disconnected. HAL interface is able to find all keyboards attached.

Stack of device deletion request:

              kbd_drv.so`KbdProc+0x6e
              Xorg`DisableDevice+0x174
              Xorg`RemoveDevice+0x1d9
              Xorg`DeleteInputDeviceRequest+0x57
              Xorg`remove_device+0x38
              Xorg`device_removed+0x80
              libhal.so.1`filter_func+0xb4
              libdbus-1.so.3`dbus_connection_dispatch+0x32a
              libdbus-1.so.3`0x801d789ec
              Xorg`wakeup_handler+0x3c
              Xorg`WakeupHandler+0x56
              Xorg`WaitForSomething+0x1d2
              Xorg`Dispatch+0x92
              Xorg`main+0x365
              Xorg`_start+0xa1
              ld-elf.so.1`0x8007d1000

Version: 7.5 (2009.10)