Re: xorg option to switch GPU

2009-08-16 Thread Mateusz Kaduk
Battery liveliness can be affected by many factors on GNU/Linux platform.

1) Make sure you use on demand CPU governor or powersave one.
2) Install laptop-mode-tools which can slow down your disc when on battery
3) Check your power management (in my case gnome-power-preferences) to
tune screen light and other features
4) Make sure services You use are battery safe.
For example if You use hdaps, install latest version from tp-smapi
source. This one does not poll continuously from sysfs and also saves
lots of battery.

2009/8/16 logangt :
> Hye @ all,
> i own a dell xps 13 since january of this year. This laptop has hybrid sli
> which is not supported in linux.
> I want to know if it's possible to configure xorg to use only the onboard
> GPU and switch the powerful one off?
> In vista i reach more than 4h batterylife in study modus (have some PDF open
> and hear music) by the same activity, in linux a reach only 2h.
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xorg option to switch GPU

2009-08-16 Thread logangt

Hye @ all,

i own a dell xps 13 since january of this year. This laptop has hybrid sli
which is not supported in linux.
I want to know if it's possible to configure xorg to use only the onboard
GPU and switch the powerful one off?
In vista i reach more than 4h batterylife in study modus (have some PDF open
and hear music) by the same activity, in linux a reach only 2h.
I have tried with "BusId 'PCI:2:00:0'" but it does't work! (i toke the
2:00:0 from "lspci" output
PS sorry for my English

here is my xorg.conf
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 1.0  (buildmeis...@builder62)  Mon May 11
15:57:20 PDT 2009


Section "ServerLayout"
Identifier "Layout0"
Screen  0  "Screen0" 0 0
InputDevice"Keyboard0" "CoreKeyboard"
InputDevice"Synaptics Touchpad" "CorePointer"
EndSection

Section "Files"
EndSection

Section "Module"
Load   "dbe"
Load   "extmod"
Load   "type1"
Load   "freetype"
Load   "glx"
EndSection

Section "InputDevice"
# generated from default
Identifier "Synaptics Touchpad"
Driver "synaptics"
Option "Protocol" "auto-dev"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
Option "SHMConfig" "on"
Option "VertTwoFingerScroll"   "true"
Option "HorizTwoFingerScroll"  "true"
EndSection

Section "InputDevice"

# generated from default
Identifier "Keyboard0"
Driver "kbd"
EndSection

Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName  "Unknown"
HorizSync   28.0 - 33.0
VertRefresh 43.0 - 72.0
Option "DPMS"
EndSection

Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName  "GeForce 9400M G"
EndSection

Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor"Monitor0"
DefaultDepth24
Option "NoLogo" "True"
SubSection "Display"
Depth   24
EndSubSection
EndSection

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