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omnibook [2006/11/09 17:37] – 206.161.205.182omnibook [2006/11/13 13:32] (current) – old revision restored andi
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 +====== HP-Omnibook 800 and Linux ======
 +
 +**Note:** This article was written in 2002 and were just recently transfered here for reference. There may be many differences with newer kernels.
 +
 +===== Hardrive/Partitions =====
 +
 +I bought a bigger harddrive than the original with 800 MB. It's an IBM Travelstar with 6GB. For using a bigger harddrive than 2GB you may need to update the bios. I'm using the latest version and experienced no problems...
 +
 +I configured the Omnibook as a dualboot machine with the following partitions:
 +
 +  /dev/hda1  3GB   Win95 FAT2
 +  /dev/hda2  2,9GB Linux
 +  /dev/hda3  100MB Linux swap
 +
 +The Swap-partition may be somehow to big. I'm considering to unmount it permanently to avoid unessessary harddrive-access (and faster batterydrain)
 +
 +For automatic spindown of the disc i use the noflushd-demon. Simply install it and change the timeout in /etc/default/noflushd to the desired value (I use 2 Minutes).
 +
 +I've not tested possible speed enhancements through using the hdparm utility, yet.
 +
 +===== PCMCIA =====
 +
 +The PCMCIA Controler is identified as followed by the pci-subsystem:
 +
 +  00:04.0 CardBus bridge: Texas Instruments PCI1130 (rev 04)
 +  00:04.1 CardBus bridge: Texas Instruments PCI1130 (rev 04)
 +
 +Nowadays there is PCMCIA-Support included in the kernelsource. Unfortunatly these drivers don't work very good for me. (Hotplugging does not work) So I compiled the drivers and the needed utils myself.
 +
 +==== How to do it ====
 +
 +Make sure you don't have the debian package of the pcmcia tools installed (we don't want to mess around with old files):
 +
 +  #> dpkg --purge pcmcia-cs
 +
 +Now get the latest Kernelsources and build a kernel without PCMCIA-support
 +
 +Download the latest PCMCIA package from http://pcmcia-cs.sourceforge.net and extract the sources to /usr/src. After cd'ing into the new directory build everything with
 +
 +  $> make config
 +  $> make all
 +  #> make install
 +
 +4. Create the needed symlinks to /etc/init.d/pcmcia with
 +
 +  #> update-rc.d pcmcia defaults 11 89
 +
 +5. Reboot the new kernel. The PCMCIA-services should start up like followed:
 +
 +  Starting PCMCIA services: modulesLinux PCMCIA Card Services 3.1.26
 +     kernel build: 2.4.5 #2 Fri Jun 15 22:11:54 CEST 2001
 +     options:  [pci] [cardbus] [apm] [pnp]
 +  PnP: PNP BIOS installation structure at 0xc00ff000
 +  PnP: PNP BIOS version 1.0, entry at e8000:33e1, dseg at e8000
 +  Intel PCIC probe: <6>PCI: Found IRQ 9 for device 00:04.0
 +  PCI: Found IRQ 11 for device 00:04.1
 +  
 +     TI 1130 rev 04 PCI-to-CardBus at slot 00:04, mem 0x10000000
 +       host opts [0]: [clkrun irq 10] [serial pci & irq] [pci irq 9] [lat 64/32] [bus 2/5]
 +       host opts [1]: [clkrun irq 10] [serial pci & irq] [pci irq 11] [lat 64/32] [bus 6/9]
 +       PCI irq 9 test failed
 +       ISA irqs (scanned) = 3,15 polling interval = 1000 ms
 +    cardmgr.
 +
 +Insert a PCMCIA card. You should hear two high beeps when the card is initialised. A low beep means something went wrong. -> check your syslogs then.
 +
 +===== Graphiccard =====
 +
 +The graphics adapter is a Neomagic card. I'm running a vesa-framebuffer driver on it, for getting a higher resolution in textmode. To enable the Frambuffer simply pass 'vga=771' to the kernel in /boot/grub/menu.lst. There is also a neomagic X-server available but I use the framebuffer-server (fbdev) because it was easier to install :-)
 +
 +===== Sound =====
 +
 +For getting the sound work, I had to do some tweaks. I applied the patches mentioned at mobilix.org:
 +
 +In /usr/src/linux/drivers/sound/sound_config.h find the following line (its line number 37 in kernel 2.4.4)
 +
 +  #define DSP_BUFFSIZE            (64*1024)
 +
 +and change it to
 +
 +  #define DSP_BUFFSIZE            (32*1024)
 +
 +In /usr/src/linux/drivers/sound/sb_mixer.c find an array of initial values called sb_default_levels (line 140 in kernel 2.4.4). Change the value on the line marked /\* Mic \*/ from 0x1010 to 0x0000 to avoid feedbacknoises.
 +
 +With compiling the PCMCIA drivers as modules it works also as a module. I inserted the following line to /etc/modules to load the sounddrivers automatically.
 +
 +  sb io=0x220 irq=5 dma=1 dma16=5 esstype=0
 +
 +===== Infrared Port =====
 +
 +The VLSI driver is now in the 2.4 kernelseries and works fine.
 +
 +===== Mouse =====
 +
 +The omnibook has a cool "snap out" mouse which speaks the ps/2 protocol (/dev/psaux). Unfortunatly the newest versions of the gpm (General purpose mousemanager) does not work with it anymore (I don't know why). I simply installed an older package of it and set the packagestate to hold in dselect for getting it work.
 +
 +Xfree 4 works fine with the mouse configured as a ps/2 mouse on /dev/gpmdata.
 +
 +===== More Infos =====
 +
 +See these Sites also:
 +
 +  * Linux on a HP Omnibook: http://tuxmobil.org/hp800e.html
 +  * Linux on Laptops: http://www.linux-laptop.net
 +  * HP-Support: http://www.hp.com/cposupport/prodhome/hpomnibook8375.html 
 +  * http://tldp.org/HOWTO/PCMCIA-HOWTO.html - PCMCIA HOWTO
 +  * http://tuxmobil.org/pcmcia_linux.html - Unoffically Supported PCMCIA Cards