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From
SubjectLinux 2.4.x on HP ze4145
Date
Hello,

This particular laptop has, among other things, an Athlon
XP1800 mobile processor with an ALI USB 1.1 controller, an
ATI Northbridge, an ATI 320 (CAB0) videocard and a
synaptics PS/2 touchpad. In the following I'll try to best
describe the problem I have. (Please note that I am not a
developer, although I dream about writing a driver for the
oz6912 PCMCIA controller this laptop came with).

Kernel versions covered: 2.4.19 - 2.4.21pre6 patched with
acpi-patch. Distribution: none (LFS 4.0). For
distributions, I tried RH 7.1, 7.3 and 8.0 but all fail
installing if I don't pass pci=off during installation.
After reboot and stock kernel I end up with the problem
below, which does not dissappear when custom compiling the
kernel.

1) I compiled the kernel with usb support built-in (not as
modules). Upon booting and entering the login prompt, the
keyboard is blocked (i.e. I can't write anything with it).
If I press the power button, the computer enters runlevel
0 (so it is not frozen) and powers off.

2) Recompile the kernel with usb as modules (usbcore and
usb-ohci) and do a script in /etc/rc.d/init.d/ to load the
modules at boot time. Symptoms stay as above.

3) Remove the script from /etc/rc.d/rc3.d (e.g.). Boot.
Login as root. The keyboard works (yee!). Do cat
/dev/mouse. Keyboard no longer works (all three LEDs light
up). Reboot.

4) Do step 3 above but don't cat the mouse anymore.
Instead do modprobe usbcore and modprobe usb-ohci. The
keyboard is NOT blocked. Do cat /dev/mouse. The mouse
works (yee). Do mount -t usbdevfs none /proc/bus/usb. The
USB filesystem is initialised and the USB works
beautifully (tested with a digital camera, a scanner, and
currently with an Apple USB mouse and Apple USB keyboard).

Did any1 have a similar problem? I posted this message
about three months ago on the linux-usb, omnibook and
finally last week on linux-laptop, with no success :-( At
this point I am completely out of ideas, so I'd appreciate
any help.

Virgil
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