Linux on Samsung Q45 A003

Boot freeze

I got problems booting Ubuntu 7.10. It freezed suddenly. I booted again passing some params to kernel: acpi=off. I updated kernel from Ubuntu Hardy. Kernel version is kernel 2.6.24-8 . It still freezes if I don't give acpi=off as kernel params.

Update

Rename /lib/modules/2.6.24-8-generic/kernel/drivers/acpi/video.ko in something else. To be sure udev doesn't load this module I blacklisted it editing /etc/modprobe.d/blacklist and adding blacklist video. I edited /boot/grub/menu.lst, removed acpi=off and added acpi_fake_ecdt=1. Everything seems to work now. I can scale cpu clock too.

Suspend and Hibernate

It works fine if you have at least 1.5 Giga swap partition. After some test, I got a "stop" in 28 seconds and a "start" in 50 seconds. I know it depends on my services, but it's 2x faster than before.

Intel Graphics Media Accelerator X310

It works nice with intel driver. I can play movies very well. I didn't check if Compiz Fusion works. I can't enable it because intel driver is blacklisted. You should edit compiz script to un-blacklist it. I got my external 20" LCD working. Usefull infos to get dual monitor here My /etc/X11/xorg.conf: Download Remember to rename it. I created a simple bash script to switch Intel 965 Dual Monitor On and Off. Currently it manages two modes:

• Laptop lcd at 1280x800
• VGA external LCD at 1680x1050@60
Download

Integrated WebCam

Works fine. Check here for drivers.

Audio - Sound Card

Works fine out of the box. I checked it with Ekiga, Skype too. One importat thing. Edit your /etc/modprobe.d/alsa-base and add:

options snd-hda-intel model=hippo

to solve "no sound after suspend" and "no sound after hibernate".

Card reader

Works fine out of the box.

Intel 3945 Wi-Fi Card

Works fine out of the box.

CPU Scaling

To get access to cpu scaling with CPU Frequency Scaling Monitor Gnome applet you need to reconfigure it: $ sudo dpkg-reconfigure gnome-applets and answer "Yes" to the question regarding setting the suid of the cpufreq-selector executable.