Hello everybody, I have a Dell Inspiron 7500 with BIOS revision A11, distribution is Debian 3.0R1 with kernel 2.2.20 and 2.4.24 (both are the plain kernels from kernel.org without any additional patches).
In the BIOS I have the touchpad set to "auto-disabled", which means: if a mouse is detected in the PS/2 port, the touchpad is disabled, otherwise enabled. With kernel 2.2.20 the PS/2 mouse is detected (kernel: Detected PS/2 Mouse Port), and I can use the mouse with gpm and X (/dev/psaux). Under /proc/interrupts 12 is listed with PS/2 mouse. With kernel 2.4.24 the PS/2 mouse is not detected and I can't use the mouse with gpm und X. In the kernel logs I find: kernel: mice: PS/2 mouse device common for all mice Under /proc/interrupts 12 is not listed, so that interrupt isn't assigned and used. And gpm gives the following message on startup: /usr/sbin/gpm[261]: write_ps2: 1 0, fe /usr/sbin/gpm[261]: PS/2 mouse failed init: Unable to set rate. /usr/sbin/gpm[261]: oops() invoked from gpm.c(1019) /usr/sbin/gpm[261]: mouse initialization failed: Inappropriate ioctl for device I have the suspicion, that kernel 2.4.24 allocates the (disabled) touchpad to /dev/psaux, but where does it allocate the PS/2 mouse? I've tried other devices (/dev/input/mice and /dev/input/mouse[0-3]) without any success. Curiously: when I enable the touchpad in the BIOS, the PS/2 mouse is detected and usable. But I don't want this setup, because I often accidentally touch the touchpad and get unwanted results. So: why does kernel 2.2.20 detect my PS/2 mouse and kernel 2.4.24 does not? Are there any options with kernel 2.4.24, which I have to enable or to disable? Has anybody any hints? Dieter Rohlfing
