Dell Latitude d510

This HowTo drew from several other HowTos:

HARDWARE Dell Latitude D610

HARDWARE Dell Latitude D810

HARDWARE ipw2200

HARDWARE Dell Inspiron 600m

The X Server Configuration HOWTO

For more laptop guides check out Linux-On-Laptops !

The d510 is probably closest to the d610. There may be slight variations in hardware on individual machines even for this model. There are things I haven’t tried to get working yet ’cause I haven’t needed them… (and I’m lazy)

make.conf

Intel Pentium-M processor at 1.73 GHz
Intel 82801FB/FBM/FR/FW/FRW (ICH6 Family) AC’97 Audio Controller
Intel Mobile 915GM/GMS/910GML Express Graphics Controller

so /etc/make.conf includes:

...
CHOST="i686-pc-linux-gnu"
CFLAGS="-march=pentium-m -O2 -pipe -fomit-frame-pointer"
CXXFLAGS="${CFLAGS}"
ACCEPT_KEYWORDS="~x86"
VIDEO_CARDS="i810 i915"
ALSA_CARDS="intel8x0"
...

Graphics

Xorg 7.0

emerge -av xorg-x11

and a few other core drivers (keyboard,mouse,etc) nothing special.

Intel i915GM driver

emerge -av xf86-video-i810

My Kernel Config has i810 and i915 as modules, not compiled into the kernel:

CONFIG_DRM_I810=m
CONFIG_DRM_I915=m

lsmod shows i915 is loaded and used, although it is not in “/etc/modules.autoload.d/kernel-2.6″.

xorgcfg as root does a pretty good job setting up an xorg.conf, with a couple of adjustments. mouse is at “/dev/input/mice” and I added the Synaptics Touchpad section. Touchpad driver:

emerge x11-drivers/synaptics

a couple more edits get HW acceleration going. glxgears is reporting ~722 FPS.

I added a virtual line to the modes section because although the higher resolutions (1280 x 1024) display on the LCD, everything is too small.. Not sure if this is the best approach but it works for me:

       SubSection "Display"
               Viewport   0 0
               Depth     15
               Virtual 1024 768
       EndSubSection
       SubSection "Display"
               Viewport   0 0
               Depth     16
               Virtual 1024 768
       EndSubSection
       SubSection "Display"
               Viewport   0 0
               Depth     24
               Virtual 1024 768
       EndSubSection

there are other ebuilds – i810switch, 855resolution, and 915resolution that I haven’t tried. So far switching back & forth between LCD and VGA output works fine with the CRT/LCD button on the keyboard. Getting the 1440x(?) resolution would be cool though.

Disks

Hard Drive is SATA. (shows up as /dev/sda — so watch out when working with external drives which probably show up as /dev/sdb, /dev/sdc, etc..)

Device Drivers  --->
 SCSI device support  --->
     SCSI disk support
  SCSI low-level drivers  --->
    Serial ATA (SATA) support
       Intel PIIX/ICH SATA support

The CD-RW/DVD-ROM on my d510 is IDE (/dev/hdc).

LAN

This works out of the box with kernel config

Ethernet (1000 Mbit)  --->
  Broadcom Tigon3 support

Wifi

My machine uses “Intel PRO/Wireless 2200BG (rev 05)”.

Since newer versions of the driver are working well, I decided to get the latest kernel source (on gentoo) and use kernel modules. (2.6.20 as of 3/3/07)

emerge --sync
emerge gentoo-sources
cd /usr/src/
rm -i linux
ln -s linux-2.6.20-gentoo linux
cp 2.6.19-r2-gentoo/.config linux/
make oldconfig
make menuconfig

Selected Kernel Configs:

 Networking   --->
    Generic IEEE 802.11 Networking Stack
   [ ] Enable full debugging output
    IEEE 802.11 WEP encryption (802.1x)
    IEEE 802.11i CCMP support
    IEEE 802.11i TKIP encryption
 Device Drivers  --->
   Network device support   --->
     [*] Network device support
     Wireless LAN (non-hamradio)   --->
       [*] Wireless LAN drivers (non-hamradio) & Wireless Extensions
        Intel PRO/Wireless 2100 Network Connection
        Intel PRO/Wireless 2200BG and 2915ABG Network Connection
 Cryptographic options  --->
    MD5 digest algorithm
    AES cipher algorighms (i586)
    ARC4 cipher algorithm
    Michael MIC keyed digest algorithm

Watched a couple of commercials on t.v.

make && make modules_install && make install
rm -Rf 2.6.19-r2-gentoo

Even with the kernel modules, you still need the firmware:

emerge -av net-wireless/ipw2100-firmware
echo "ipw2200" >> /etc/modules.autoload.d/kernel-2.6
reboot

On reboot found eth1, configurable by iwconfig or whatever.

dmesg | grep ipw
...
ipw2200: Intel(R) PRO/Wireless 2200/2915 Network Driver, 1.2.0kdq
ipw2200: Copyright(c) 2003-2006 Intel Corporation
ipw2200: Detected Intel PRO/Wireless 2200BG Network Connection
...
modprobe ieee80211_crypt_wep

Connected to my insecure WEP network. Some gotchas: Make sure BIOS settings leave wireless on, they are o.k. by default. If it’s on the “bluetooth” light will be lit… A kernel upgrade usually also means rebuilding other modules such as for alsa.

Noise

There used to be a high-pitched noise, apparently generated by the processor entering energy-saving idle states. My kernel config has the acpi module “processor” compiled into the kernel so the noise went away after adding “processor.max_cstate=2″ to the kernel options (in grub.conf):

...
kernel /vmlinuz root=/dev/sda7 processor.max_cstate=2
...

CPU Frequency Scaling

Kernel Configs:

CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=y
CONFIG_CPU_FREQ_DEBUG=y
CONFIG_CPU_FREQ_STAT=y
# CONFIG_CPU_FREQ_STAT_DETAILS is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
# CONFIG_CPU_FREQ_GOV_ CONSERVATIVE is not set

To auto-regulate CPU frequency according to system load:

emerge sys-power/cpudyn sys-power/cpufrequtils
rc-update add cpudyn default
rc-update add cpufrequtils default

In /etc/conf.d/cpufrequtils I have

GOVERNOR="ondemand"

The GNOME CPU Frequency Monitor widget shows the processor idling at 800MHz but scaling up to 1.07, 1.33, or 1.73MHz according to system load.

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