HP_Omnibook_4150

Hardware

• - Intel Pentium 2 processor with MMX support
• - Phoenix Bios with APM support
• - 2 cardbus slots - Texas instruments bridges
• - 1 USB controller
• - Nemoagic 2200 graphics card
• - Neomagic 2200 sound card
• - Intel PIIX ide controller

4150B

• - Intel Pentium 3 processor 450Mhz
• - ATI Graphics

Sound

Alsa sound doesn't work with neomagic driver. The best choice is to compile as module cs4232 card support and create in /etc/modprobe.d/ file named sound. Then edit it and add following lines:

alias sound-slot-0 snd-cs4232
alias snd-card-0 snd-cs4232
options snd-cs4232 port=0x534 cport=0x538 mpu_port=-1 fm_port=0x388 irq=5 dma1=1 dma2=0 isapnp=0

Afterwards run update-modules.

Power Management

After installing from stage 3 tarball the default system includes acpid when it's better to use apmd.

First unmerge acpid:

emerge --unmerge acpid

Now install apmd, and add it to boot runlevel:

emerge apmd
rc-update add apmd boot

And laptop-mode-tools:

emerge laptop-mode-tools

Edit /etc/laptop-mode/laptop-mode.conf or try defaults settings; remeber to add laptop mode to default runlevel.

rc-update add laptop-mode default

See also:

• Article about extending battery life
• Home of laptop-mode-tools

Grub

Grub boot image doesn't work and breaks boot menu. Disable it in /boot/grub/menu.list.