SamsungQ45Dalia
Contact |
|
Make |
Samsung |
Brand |
Q45 Aura |
Model |
T7250 Dalia |
Website |
[http://notebook.samsung.de/produkte/detail12_main.aspx?guid=aa7ffbf9-a8c6-46e7-8a45-04fad4906ab7 Samsung (german)] |
Current Issues
Description |
Bug |
Fix? |
Fails to boot |
[#workaround-boot Yes] |
|
Hotkeys don't work |
No |
|
MTRRs set up incorrectly with 4GB RAM (slow video) |
[#workaround-mtrr Yes] |
System Info (from dmidecode)
system-manufacturer |
SAMSUNG ELECTRONICS CO., LTD. |
system-product-name |
SQ45S70S |
system-version |
08ST |
bios-version |
13ST |
Hardware details
Screen & Monitors |
|||||
Device |
Works? |
Bug # |
|||
in Hardy (8.04 LTS) |
in Intrepid (devel) |
||||
Screen |
Yes [#footnote-mtrr (4)] |
Untested |
|
||
Correct resolution? |
Yes |
Untested |
|
||
Correct refresh rate? |
Yes |
Untested |
|
||
3D Acceleration |
Yes |
Untested |
|
||
External monitor works? |
Yes [#footnote-xrandr (2)] |
Untested |
|
||
External monitor - mirrors |
Yes [#footnote-xrandr (2)] |
Untested |
|
||
External monitor - extend desktop |
Yes [#footnote-xrandr (2)] |
Untested |
|
||
Power Management |
|||||
Battery detected? |
Yes |
Untested |
|
||
Hibernate |
Untested |
Untested |
|
||
Suspend |
Untested |
Untested |
|
||
Dim monitor on battery |
No |
Untested |
|
||
Blank monitor on inactivity |
Yes |
Untested |
|
||
Lid Close |
Untested |
Untested |
|
||
Cpu frequency scaling |
Yes |
Untested |
|
||
Sound |
|||||
Sound works? |
Yes |
Untested |
|
||
Correct volume? |
Yes |
Untested |
|
||
Hardware volume switch |
Yes |
Untested |
|
||
Headphone jack |
Yes |
Untested |
|
||
Mic jack |
Yes |
Untested |
|
||
Networking |
|||||
Wired NIC |
Yes |
Untested |
|
||
Wireless NIC |
Yes |
Untested |
|
||
PCMCIA NIC |
Untested |
Untested |
|
||
Firewire |
Untested |
Untested |
|
||
Bluetooth |
Untested |
Untested |
|
||
Modem |
Untested |
Untested |
|
||
Touchpad & Mice |
|||||
Touchpad |
Yes |
Untested |
|
||
Touchpad - Doubletap = double click |
Yes |
Untested |
|
||
Touchpad - Scroll down side |
Yes |
Untested |
|
||
External mouse - USB |
Yes |
Untested |
|
||
Additional Hardware |
|||||
CD/DVD drive |
Yes |
Untested |
|
||
PCMCIA cards |
Untested |
Untested |
|
||
Card reader(s) |
Yes |
Untested |
|
||
Webcam |
Yes [#footnote-webcam (1)] |
Untested |
|
||
Function and other keys |
|||||
Fn key |
Operation |
Keycode |
Works? |
Bug # |
|
in Hardy (8.04 LTS) |
in Intrepid (devel) |
||||
+ Esc |
Sleep |
|
Yes |
Untested |
|
+ F2 |
Battery status |
e003:0x83 |
No |
Untested |
|
+ F3 |
Euro |
[#footnote-euro (3)] |
No |
Untested |
|
+ F4 |
Display switch |
e002:0x82 |
No |
Untested |
|
+ F5 |
Backlight switch |
e004:0x84 |
No |
Untested |
|
+ F6 |
Mute audio |
|
Yes |
Untested |
|
+ F7 |
System repair |
e031:0xb1 |
No |
Untested |
|
+ F8 |
Speed switch |
e033:0xb3 |
No |
Untested |
|
+ F9 |
WLAN siwtch |
e006:0x86 |
No |
Untested |
|
+ F10 |
Disable touchpad |
|
Yes |
Untested |
|
+ F11 |
Num lock |
|
Yes |
Untested |
|
+ F12 |
Scroll lock |
|
Yes |
Untested |
|
+ Up |
Brightness up |
e008:0x88 |
No |
Untested |
|
+ Down |
Brightness down |
e009:0x89 |
No |
Untested |
|
+ Left |
Volume down |
|
Yes |
Untested |
|
+ Right |
Volume up |
|
Yes |
Untested |
|
Notes
Works with v4l2 but not with v4l. But most applications support v4l2 nowadays (ekiga, cheese, skype), so this is almost a non-issue. |
|
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. |
|
Strangely this key produces the following keysyms in xev: Alt_L (press), KP_Insert, KP_End, KP_Down, KP_Up, Alt_L (release) |
|
There is an issue which seriously affects video performance with 4GB of RAM (see [https://bugs.launchpad.net/bugs/210780 210780]) |
Workarounds
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
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!