||<tablestyle="float:right; font-size: 0.9em; width:40%; background:#F1F1ED; margin: 2em 0 1em 1em;" style="padding:0.5em;"><<TableOfContents>>||

== System ==
||<#EEEEEE> '''Contact''' || MikaFischer ||
||<#EEEEEE> '''Make'''    || Samsung ||
||<#EEEEEE> '''Brand'''   || Q45 Aura ||
||<#EEEEEE> '''Model'''   || T7250 Dalia ||
||<#EEEEEE> '''Website''' || [[http://notebook.samsung.de/produkte/detail12_main.aspx?guid=aa7ffbf9-a8c6-46e7-8a45-04fad4906ab7|Samsung (german)]] ||

== Current Issues ==
[[https://bugs.launchpad.net/ubuntu/+bugs?field.searchtext=&orderby=-importance&field.status%3Alist=NEW&field.status%3Alist=INCOMPLETE_WITH_RESPONSE&field.status%3Alist=INCOMPLETE_WITHOUT_RESPONSE&field.status%3Alist=CONFIRMED&field.status%3Alist=TRIAGED&field.status%3Alist=INPROGRESS&field.status%3Alist=FIXCOMMITTED&assignee_option=any&field.assignee=&field.bug_reporter=&field.bug_contact=&field.bug_commenter=&field.subscriber=&field.component-empty-marker=1&field.status_upstream-empty-marker=1&field.omit_dupes.used=&field.omit_dupes=on&field.has_patch.used=&field.has_cve.used=&field.tag=q45&field.tags_combinator=ANY&field.has_no_package.used=&search=Search|List of Q45 specific bugs]]
||<#EEEEEE> '''Description''' ||<#EEEEEE :> '''Bug''' ||<#EEEEEE :> '''Workaround?''' ||
|| Fails to boot ||<:> [[https://bugs.launchpad.net/bugs/146692|146692]] ||<:> [[#workaround-boot|Yes]] ||
|| Hotkeys don't work ||<:> [[https://bugs.launchpad.net/bugs/212790|212790]] ||<:> No ||
|| MTRRs set up incorrectly with 4GB RAM (slow video) ||<:> [[https://bugs.launchpad.net/bugs/210780|210780]] ||<:> [[#workaround-mtrr|Yes]] ||
|| Sound does not work after resuming from suspend/hibernate ||<:> [[https://bugs.launchpad.net/bugs/200210|200210]] ||<:> [[#workaround-sound|Yes]] ||
|| Card reader cannot read MMC cards ||<:> [[https://bugs.launchpad.net/bugs/111089|111089]] ||<:> [[#workaround-mmc|Yes]] ||
|| Card reader cannot read XD or Memory``Stick cards ||<:> [[https://bugs.launchpad.net/ubuntu/+bug/202490|202490]] ||<:> No ||

== System Info (from dmidecode) ==
||<#EEEEEE> '''{{{system-manufacturer}}}''' || {{{SAMSUNG ELECTRONICS CO., LTD.}}} ||
||<#EEEEEE> '''{{{system-product-name}}}''' || {{{SQ45S70S}}} ||
||<#EEEEEE> '''{{{system-version}}}'''      || {{{08ST}}} ||
||<#EEEEEE> '''{{{bios-version}}}'''        || {{{13ST}}} ||


== Hardware details ==

||<-6 tablewidth="80%" #EEEEEE> '''Screen & Monitors''' ||
||<|2 #EEEEEE> '''Device''' ||<-2 #EEEEEE> '''Works?''' ||<|2 #EEEEEE> '''Bug #''' ||
||<#EEEEEE> in Hardy (8.04 LTS) ||<#EEEEEE> in Intrepid (devel) ||
|| Screen                            ||<#CCFFCC> Yes [[#footnote-mtrr|(4)]] ||<#FFEBBB> Untested || [[https://bugs.launchpad.net/bugs/210780|210780]] ||
|| Correct resolution?               ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
|| Correct refresh rate?             ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
|| 3D Acceleration                   ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
|| External monitor works?           ||<#CCFFCC> Yes [[#footnote-xrandr|(2)]] ||<#FFEBBB> Untested || [[https://bugs.launchpad.net/bugs/221334|221334]] [[https://bugs.launchpad.net/bugs/221898|221898]] ||
|| External monitor - mirrors        ||<#CCFFCC> Yes [[#footnote-xrandr|(2)]] ||<#FFEBBB> Untested || ||
|| External monitor - extend desktop ||<#CCFFCC> Yes [[#footnote-xrandr|(2)]] [[#footnote-compiz2048|(5)]] [[#footnote-virtual|(6)]] ||<#FFEBBB> Untested || [[https://bugs.launchpad.net/bugs/146859|146859]] ||
||<-5 #EEEEEE> '''Power Management''' ||
|| Battery detected?           ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
|| Hibernate                   ||<#CCFFCC> Yes [[#footnote-sound|(9)]] ||<#FFEBBB> Untested || [[https://bugs.launchpad.net/bugs/200210|200210]] ||
|| Suspend                     ||<#CCFFCC> Yes [[#footnote-sound|(9)]] ||<#FFEBBB> Untested || [[https://bugs.launchpad.net/bugs/200210|200210]] ||
|| Dim monitor on battery      ||<#FFCCCC> No [[#footnote-backlight-battery|(11)]] ||<#FFEBBB> Untested || [[https://bugs.launchpad.net/bugs/221478|221478]] ||
|| Blank monitor on inactivity ||<#FFCCCC> No [[#footnote-backlight|(10)]] ||<#FFEBBB> Untested || [[https://bugs.launchpad.net/bugs/221478|221478]] ||
|| Lid Close                   ||<#FFCCCC> No [[#footnote-lid|(8)]] ||<#FFEBBB> Untested || [[https://bugs.launchpad.net/bugs/89860|89860]] [[https://bugs.launchpad.net/bugs/44058|44058]] ||
|| Cpu frequency scaling       ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
||<-5 #EEEEEE> '''Sound''' ||
|| Sound works?           ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
|| Correct volume?        ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
|| Hardware volume switch ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
|| Headphone jack         ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
|| Mic jack               ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
||<-5 #EEEEEE> '''Networking''' ||
|| Wired NIC    ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
|| Wireless NIC ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
|| PCMCIA NIC   ||<#FFEBBB> Untested ||<#FFEBBB> Untested || ||
|| Firewire     ||<#FFEBBB> Untested ||<#FFEBBB> Untested || ||
|| Bluetooth    ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
|| Modem        ||<#FFEBBB> Untested ||<#FFEBBB> Untested || ||
||<-5 #EEEEEE> '''Touchpad & Mice''' ||
|| Touchpad                            ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
|| Touchpad - Doubletap = double click ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
|| Touchpad - Scroll down side         ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
|| External mouse - USB                ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
||<-5 #EEEEEE> '''Additional Hardware''' ||
|| CD/DVD drive   ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
|| PCMCIA cards   ||<#FFEBBB> Untested ||<#FFEBBB> Untested || ||
|| Card reader(s) ||<#CCFFCC> Yes [[#footnote-cardreader|(7)]] ||<#FFEBBB> Untested || [[https://bugs.launchpad.net/bugs/111089|111089]] [[https://bugs.launchpad.net/ubuntu/+bug/202490|202490]] ||
|| Webcam         ||<#CCFFCC> Yes [[#footnote-webcam|(1)]] ||<#FFEBBB> Untested || ||

||<-6 tablewidth="80%" #EEEEEE> '''Function and other keys''' ||
||<|2 #EEEEEE> '''Fn key''' ||<|2 #EEEEEE> '''Operation''' ||<|2 #EEEEEE> '''Keycode''' ||<-2 #EEEEEE> '''Works?''' ||<|2 #EEEEEE> '''Bug #''' ||
||<#EEEEEE> in Hardy (8.04 LTS) ||<#EEEEEE> in Intrepid (devel) ||
|| + Esc   || Sleep            || ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
|| + F2    || Battery status   || e003:0x83 ||<#FFCCCC> No  ||<#FFEBBB> Untested || [[https://bugs.launchpad.net/bugs/212790|212790]] ||
|| + F3    || Euro             || [[#footnote-euro|(3)]] ||<#FFCCCC> No  ||<#FFEBBB> Untested || [[https://bugs.launchpad.net/bugs/212790|212790]] ||
|| + F4    || Display switch   || e002:0x82 ||<#FFCCCC> No  ||<#FFEBBB> Untested || [[https://bugs.launchpad.net/bugs/212790|212790]] ||
|| + F5    || Backlight switch || e004:0x84 ||<#FFCCCC> No  ||<#FFEBBB> Untested || [[https://bugs.launchpad.net/bugs/212790|212790]] ||
|| + F6    || Mute audio       || ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
|| + F7    || System repair    || e031:0xb1 ||<#FFCCCC> No  ||<#FFEBBB> Untested || [[https://bugs.launchpad.net/bugs/212790|212790]] ||
|| + F8    || Speed switch     || e033:0xb3 ||<#FFCCCC> No  ||<#FFEBBB> Untested || [[https://bugs.launchpad.net/bugs/212790|212790]] ||
|| + F9    || WLAN siwtch      || e006:0x86 ||<#FFCCCC> No  ||<#FFEBBB> Untested || [[https://bugs.launchpad.net/bugs/212790|212790]] ||
|| + F10   || Disable touchpad || ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
|| + F11   || Num lock         || ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
|| + F12   || Scroll lock      || ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
|| + Up    || Brightness up    || e008:0x88 ||<#FFCCCC> No  ||<#FFEBBB> Untested || [[https://bugs.launchpad.net/bugs/212790|212790]] [[https://bugs.launchpad.net/bugs/221478|221478]] ||
|| + Down  || Brightness down  || e009:0x89 ||<#FFCCCC> No  ||<#FFEBBB> Untested || [[https://bugs.launchpad.net/bugs/212790|212790]] [[https://bugs.launchpad.net/bugs/221478|221478]] ||
|| + Left  || Volume down      || ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||
|| + Right || Volume up        || ||<#CCFFCC> Yes ||<#FFEBBB> Untested || ||

=== Notes ===
|| <<Anchor(footnote-webcam)>>(1) || Works with v4l2 but ''not'' with v4l. But most applications support v4l2 nowadays (ekiga, cheese, skype), so this is almost a non-issue. ||
|| <<Anchor(footnote-xrandr)>>(2) || Technically this works perfectly with the xrandr tool. The GUI shipped with hardy has many problems however. I could not get it to expand the desktop for instance. ||
|| <<Anchor(footnote-euro)>>(3) || Strangely this key produces the following keysyms in {{{xev}}}: {{{Alt_L (press), KP_Insert, KP_End, KP_Down, KP_Up, Alt_L (release)}}} ||
|| <<Anchor(footnote-mtrr)>>(4) || There is an issue which seriously affects video performance with 4GB of RAM (see [[https://bugs.launchpad.net/bugs/210780|210780]]) ||
|| <<Anchor(footnote-compiz2048)>>(5) || Compiz will only work with combined resolutions up to 2048x2048 pixels. This is a driver bug that apparently is [[http://lists.freedesktop.org/archives/xorg/2008-April/034573.html|fixed]] in Xorg trunk! ||
|| <<Anchor(footnote-virtual)>>(6) || X will be limited to the maximum supported resolution of the devices connected on startup. If you want to plug in a higher-resolution display after startup or if you want to extend your desktop (aka. multi-head), put in an appropriate {{{Virtual width height}}} line into your {{{/etc/X11/xorg.conf}}} ([[http://www.thinkwiki.org/wiki/Xorg_RandR_1.2#the_Virtual_screen|More detailed explanation]]). ||
|| <<Anchor(footnote-cardreader)>>(7) || SD cards work, MMC cards can be made to work with a kernel patch, XD and MemoryStick are not supported due to the manufacturer not providing specs AFAICT ||
|| <<Anchor(footnote-lid)>>(8) || The display backlight is switched off automatically by the hardware but HAL does not notice the lid close event. ||
|| <<Anchor(footnote-sound)>>(9) || After resuming from suspend or hibernate, sound is no longer working (see [[https://bugs.launchpad.net/bugs/200210|200210]]). ||
|| <<Anchor(footnote-backlight)>>(10) || The screen blanks but the backlight actually stays on! ||
|| <<Anchor(footnote-backlight-battery)>>(11) || You can let the hardware do it via a BIOS setting but I disabled that. ||

<<Anchor(workarounds)>>
== Workarounds ==

<<Anchor(workaround-boot)>>
=== Workaround for "Fails to boot" ===
  * To get the LiveCD to boot, pass {{{acpi=off}}} as kernel parameter
  * Then install Ubuntu normally
  * When booting the installed system you must again pass {{{acpi=off}}}
  * Then blacklist the {{{video}}} kernel module:
    * {{{echo "blacklist video" | sudo tee /etc/modprobe.d/blacklist-q45}}}
  * Reboot without passing {{{acpi=off}}}

<<Anchor(workaround-mtrr)>>
=== Workaround for "MTRRs set up incorrectly with 4GB RAM (slow video)" ===
  * A workaround with a useful script is described here: [[https://bugs.launchpad.net/bugs/210780|210780]]
  * '''Please note that you may have to modify it and that not doing that or doing it wrong may well freeze your system and/or render it unbootable! Do this only if you know what you're doing'''

<<Anchor(workaround-sound)>>
=== Workaround for "Sound does not work after resuming from suspend/hibernate" ===

  * Add the option {{{model=hippo}}} to the {{{snd-hda-intel}}} driver:
    * {{{echo "options snd-hda-intel model=hippo" | sudo tee /etc/modprobe.d/sound-q45}}}
  * Reboot

<<Anchor(workaround-mmc)>>
=== Workaround for "Card reader cannot read MMC cards" ===
  * The kernel patch that has to be applied can be found here: [[http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=882c49164d72c45f37d7fa1bb3de7c31cf1a5fab|RL5c476 MMC support]].
  * You have to recompile the ricoh-mmc module with this patch applied and replace the driver in Ubuntu with the new one.
    * {{{sudo modprobe -r ricoh-mmc}}}
    * {{{sudo apt-get install build-essential linux-headers-`uname -r` wget}}}
    * {{{mkdir ~/ricoh-mmc-fix}}}
    * {{{cd ~/ricoh-mmc-fix}}}
    * {{{wget -O ricoh_mmc.c 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob_plain;f=drivers/mmc/host/ricoh_mmc.c;h=a16d7609e4eede4fa88f4ecc6b3ac9dce699038a'}}}
    * {{{echo -ne "obj-m += ricoh_mmc.o\nall:\n\tmake -C /lib/modules/\$(shell uname -r)/build M=\$(PWD) modules\n" > Makefile}}}
    * {{{make}}}
    * {{{sudo mv /lib/modules/`uname -r`/kernel/drivers/mmc/host/ricoh_mmc.ko /lib/modules/`uname -r`/kernel/drivers/mmc/host/ricoh_mmc.ko.hardy}}}
    * {{{sudo cp ricoh_mmc.ko /lib/modules/`uname -r`/kernel/drivers/mmc/host/ricoh_mmc.ko}}}
    * {{{sudo depmod -a}}}
    * {{{sudo modprobe ricoh-mmc}}}

== Detailed hardware information ==
=== lspci output ===
||<#EEEEEE> '''Slot''' ||<#EEEEEE> '''Class''' ||<#EEEEEE> '''Vendor''' ||<#EEEEEE> '''Device''' ||<#EEEEEE> '''Vendor & Device ID''' ||<#EEEEEE> '''Revision''' ||
|| 00:00.0 || Host bridge               || Intel Corporation || Mobile PM965/GM965/GL960 Memory Controller Hub     || 8086:2a00 || 03 ||
|| 00:02.0 || VGA compatible controller || Intel Corporation || Mobile GM965/GL960 Integrated Graphics Controller  || 8086:2a02 || 03 ||
|| 00:02.1 || Display controller        || Intel Corporation || Mobile GM965/GL960 Integrated Graphics Controller  || 8086:2a03 || 03 ||
|| 00:1a.0 || USB Controller            || Intel Corporation || 82801H (ICH8 Family) USB UHCI Controller #4        || 8086:2834 || 03 ||
|| 00:1a.1 || USB Controller            || Intel Corporation || 82801H (ICH8 Family) USB UHCI Controller #5        || 8086:2835 || 03 ||
|| 00:1a.7 || USB Controller            || Intel Corporation || 82801H (ICH8 Family) USB2 EHCI Controller #2       || 8086:283a || 03 ||
|| 00:1b.0 || Audio device              || Intel Corporation || 82801H (ICH8 Family) HD Audio Controller           || 8086:284b || 03 ||
|| 00:1c.0 || PCI bridge                || Intel Corporation || 82801H (ICH8 Family) PCI Express Port 1            || 8086:283f || 03 ||
|| 00:1c.1 || PCI bridge                || Intel Corporation || 82801H (ICH8 Family) PCI Express Port 2            || 8086:2841 || 03 ||
|| 00:1d.0 || USB Controller            || Intel Corporation || 82801H (ICH8 Family) USB UHCI Controller #1        || 8086:2830 || 03 ||
|| 00:1d.1 || USB Controller            || Intel Corporation || 82801H (ICH8 Family) USB UHCI Controller #2        || 8086:2831 || 03 ||
|| 00:1d.2 || USB Controller            || Intel Corporation || 82801H (ICH8 Family) USB UHCI Controller #3        || 8086:2832 || 03 ||
|| 00:1d.7 || USB Controller            || Intel Corporation || 82801H (ICH8 Family) USB2 EHCI Controller #1       || 8086:2836 || 03 ||
|| 00:1e.0 || PCI bridge                || Intel Corporation || 82801 Mobile PCI Bridge                            || 8086:2448 || f3 ||
|| 00:1f.0 || ISA bridge                || Intel Corporation || 82801HEM (ICH8M) LPC Interface Controller          || 8086:2815 || 03 ||
|| 00:1f.2 || IDE interface             || Intel Corporation || 82801HBM/HEM (ICH8M/ICH8M-E) SATA IDE Controller   || 8086:2828 || 03 ||
|| 00:1f.3 || SMBus                     || Intel Corporation || 82801H (ICH8 Family) SMBus Controller              || 8086:283e || 03 ||
|| 02:00.0 || Network controller        || Intel Corporation || PRO/Wireless 3945ABG Network Connection            || 8086:4222 || 02 ||
|| 03:00.0 || Ethernet controller       || Marvell Technology Group Ltd. || 88E8039 PCI-E Fast Ethernet Controller || 11ab:4353 || 15 ||
|| 04:09.0 || Card``Bus bridge          || Ricoh Co Ltd      || RL5c476 II                                         || 1180:0476 || b4 ||
|| 04:09.1 || Fire``Wire (IEEE 1394)    || Ricoh Co Ltd      || R5``C552 IEEE 1394 Controller                      || 1180:0552 || 09 ||
|| 04:09.2 || SD Host controller        || Ricoh Co Ltd      || R5``C822 SD/SDIO/MMC/MS/MSPro Host Adapter         || 1180:0822 || 18 ||
|| 04:09.3 || System peripheral         || Ricoh Co Ltd      || R5``C843 MMC Host Controller                       || 1180:0843 ||    ||
|| 04:09.4 || System peripheral         || Ricoh Co Ltd      || R5``C592 Memory Stick Bus Host Adapter             || 1180:0592 || 09 ||
|| 04:09.5 || System peripheral         || Ricoh Co Ltd      || xD-Picture Card Controller                         || 1180:0852 || 04 ||

=== lsusb output ===
||<#EEEEEE> '''Device''' ||<#EEEEEE> '''Vendor & Product ID''' ||<#EEEEEE> '''Description''' ||<#EEEEEE> '''Sysfs name''' ||
|| Webcam    || 0ac8:c302 || Z-Star Microelectronics Corp. || Vega USB 2.0 Camera. ||
|| Bluetooth || 0a5c:2101 || Broadcom Corp. || BCM92045NMD ||

----
CategoryLaptop