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Fujitsu Esprimo Mobile U9200


As of Kubuntu Maverick 10.10, everything works out of the box or with minor workarounds. The two things that need workarounds are backlight control and ExpressCard hotplugging.

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For partial specifications see this document.

NameFujitsu Esprimo Mobile U9200
ProcessorIntel Core 2 Duo “Merom” with Socket P T5250/T5450/T5550/T5750/T5800/T5850/T7100/T7300/T7500/T7700/T7800: 1.5 GHz - 2.6 GHz, 800/667 MT/s FSB, 4/2 MiB On-Die L2 Cache
Intel Core 2 “Penryn” for Santa Rosa platform: T8100/T8300/T9300/T9500: 2.1 GHz - 2.6 GHz, 800 MT/s FSB, 6/3 MiB On-Die L2 Cache
various compatible Celeron and Pentium processors…
Screen12.0“ WXGA (1280 x 800)
GraphicsIntel GMA X3100
up to 4GiB by specs,
up to 8GiB by reports
HDD SATA 1.5Gbit/s; ships with 80GB to 250GB - 5400rpm
Optical Drive ATA slim, ships with Toshiba-Samsung Storage Corp. TS-L632H
accepts other optical drives as well as HDD caddies
Wired Conectivity1Gbps Ethernet by Marvell 88E8055
56k modem
Wireless Connectivity ships with Intel 3945 or 4965
Option GTM 378 3G modem
no BIOS lock, so other WLAN/WWAN cards work, but may have incompatible LED indication or radio killswitch
Bluetooth v2.0 by internal USB dongle

Linux Compatibility

ScreenPartialSome versions of intel driver stretch lower resolutions across the entire screen, others keep the aspect ratio and put black bands around the sides as default. You can change the behaviour by setting the “scaling mode” property.
Backlight control requires workaround. See below.
Optical DriveYes
SoundYesProper Headphone jack switch/mute requires alsa 1.0.20. You may be able to fix older version's behavior by setting a different model in the module's options
EthernetYesSupported by sky2 driver, which is not included in old Ubuntu's (8.04) initrd image, which prevents netbooting. Doesn't affect an installed system or liveCD/liveUSB, and later versions work fine.
WirelessYesIntel 4965 needs kernel 2.6.24 or compat-wireless to work
BluetoothYesImplemented as an internal USB dongle. Radio killswitch “disconnects” this dongle.
56K ModemNot Tested
Card ReaderYesImplemented as a USB mass storage device. Can be used to boot the computer.
ExpressCard SlotPartialWorkaround needed to make PCIe ExpressCards work with hotplugging. See below.
CameraYesFoxlink FO13FF-65-1 PC-CAM is a USB Video Class device - uses uvc driver.


PCIe ExpressCard Hotplug

“Slow” ExpressCards such as 3G modems use USB and work out of the box. “Fast” ExpressCards such as SATA controllers use PCIe which needs its link set up either by ACPI (this doesn't work in Linux) or by OS (this works, but needs to be enabled). To fix this issue, you need to add “pciehp.pciehp_force=1” to the kernel command line. In Ubuntu and other distributions using Grub2, the best way to do this is to edit /etc/default/grub and add it to the default options:

GRUB_CMDLINE_LINUX_DEFAULT="pciehp.pciehp_force=1 quiet splash"

<note important>Don't forget to apply these changes by running

sudo update-grub2


Backlight control

See Kernel bug #25482. Similar to the above, the best way to fix this is to modify the kernel commandline from grub configuration.

GRUB_CMDLINE_LINUX_DEFAULT="pciehp.pciehp_force=1 video.brightness_switch_enabled=0 quiet splash"

<note important>Don't forget to apply these changes by running

sudo update-grub2


Internal USB devices not present, suspend-to-RAM problems

The BIOS in this machine is rather buggy and sometimes after changing the configuration in BIOS setup (especially that regarding the internal peripherals) the laptop doesn't behave according to the config or exhibits problems suspending or waking up from suspend. This problem is usually fixed by resetting the BIOS setup to defaults, rebooting a setting it up once afterwards.

Sound in older distros

Older distributions such as Kubuntu Hardy 8.04 have problems detecting and switching between headphone output and internal speaker. You can fix this by compiling alsa (needs to be done on every kernel update)

sudo apt-get install module-assistant
sudo m-a update
sudo m-a prepare
sudo m-a a-i alsa
sudo /etc/init.d/alsa-utils reset


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fujitsu_esprimo_mobile_u9200.txt · Last modified: 2011/08/21 11:16 by
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