Sony
Vaio VPCZ11X9E, no keyboard/touchpad on_boot or after
suspend/hibernate
Asdescribed here we must add i8042.nopnp to the kernel boot parameters in order to use the touchpad at all. Anyhow it sometimes happens that you reboot or suspend/hibernate and end up without mouse and keyboard. Up to today I always had to hard power off the machine, i.e. holding down the power button. Even if this only happens about once every 10 reboots, it is really annoying, so today I attached an usb keyboard to the machine and started investigating.

I discovered that just reloading the psmouse module does the trick of bringing
both the keyboard and the mouse back to life.

In order to make this automatic I added a couple of scripts to
my system.

The first one goes into /etc/pm/sleep.d/99i8042

#!/bin/sh

case "$1" in
 suspend|hybernate)
  modprobe -r psmouse
  ;;


 thaw|resume)
  modprobe psmouse
  ;;
esac

and the other one, to be saved as /etc/init/fix_touchpad.conf is

# reload the psmouse module

description     "Reload the psmouse driver because the buggy i8042 could mess it up after boot"
author          "Vincenzo Di Massa <hawk.it@tiscali.it>"

start on starting-dm
task
script
 modprobe -r psmouse
 sleep 1
 modprobe psmouse
end script
   

Ubuntu lucid lynx 10.04 on the sony vaio core i7 2010 VPCZ11Z9E

switching the intel and nvidia cards

First of all read http://questier.com/2010/04/26/ubuntu-10-4-lucid-lynx-on-sony-vaio-vpcz11x9e/

To get suspend to ram working when using the intel ** card add

ADD_PARAMETERS="--quirk-test --quirk-s3-bios --quirk-s3-mode"

to /etc/pm/config.d/default (which does not exist by default) and install uswsusp.

To make the nvidia card working I used the the trick described above... I then made it work automatically like this:
1) set grub to automatically boot from the 2.6.32 kernel
2) create a script in /usr/local/bin/force_reboot which just calls /sbin/reboot -f
3) add a grub entry which boots the 2.6.31-20 kernel and add it the parameter init=/usr/local/bin/force_reboot

4) create the config file for nvidia and intel as /etc/X11/xorg.conf.{intel,nvidia}
5) add a boot time service (see the script below) which switches the 2 cards config (must change the xorg.conf file and setup ld.so making it able to find mesa/nvidia libglx.so versions)

# goes into /etc/init/vga_card_switch.conf
# setup the proper video-card

description     "Detect wich videocard to use and st it up"
author          "Vincenzo Di Massa <hawk.it@tiscali.it>"

start on filesystem
#console output
task
script
FOUND=intel
PCIID=$(dmesg | awk '/Boot video device/ {print $4}')
PCIID=${PCIID%:*}
PCIID=${PCIID#*:}
lspci | grep $PCIID | grep -q nVidia && FOUND=nvidia
if [ "$FOUND" = "nvidia" ]; then
ln -sf /etc/X11/xorg.conf.nvidia /etc/X11/xorg.conf
update-alternatives --set gl_conf /usr/lib/nvidia-current/ld.so.conf
else
ln -sf /etc/X11/xorg.conf.intel /etc/X11/xorg.conf
update-alternatives --set gl_conf /usr/lib/mesa/ld.so.conf
fi
exec ldconfig
end script

** to get intel and nvidia working properly you must install grub, as described above and remove the nomodeset option from the boot parameters

Of course all of the above is hackish.