Acer 3400LMI manual Virtual screen size, # xrandr ­q Screen 0 minimum

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60.0*+
59.8
60.0
60.0
60.0

F8­x86_64 on the Acer Ferrari 3400LMi

the fly by the command line tool xrandr, and there is no need to restart the X server.

10.2.1 Virtual screen size

RandR works its magic by means of a virtual screen that is larger than the a single monitor.

The size of the virtual screen is reported as the maximum value by the command:

# xrandr ­q

Screen 0: minimum 320 x 200, current 1400 x 1050, maximum 1400 x 1200

...

In this case the size is 1400x1200, which is the default virtual screen size for this setup. The default screen size is too small for serious dual­head configurations. This value needs to be increased by setting the Virtual option in the Display sub­ section in /etc/X11/xorg.conf:

SubSection "Display"

Viewport

0 0

Depth

24

Virtual

3000 2000

EndSubSection

This is the most (only) important setting needed in xorg.conf. However, in order to enjoy hardware support for 3D acceleration the virtual screen may not be larger than 3000x2000. This limitation differs for the various driver, but for the radeon driver the limitation is 3000x2000. This is sufficient for having an external monitor running at 1600x1200 side­by­side with your internal display as 1400x1050.

After modifying xorg.conf you need to restart your X server, ie. logout and logon again. Now, check your settings once again:

# xrandr ­q

 

 

 

 

 

Screen 0: minimum

320 x 200, current 1400 x 1050, maximum 3000 x 2000

VGA­0 connected (normal left inverted right x axis y axis)

1280x1024

59.9

 

 

 

 

1152x864

75.0

74.8

 

 

 

1024x768

84.9

75.1

70.1

60.0

43.5

832x624

74.6

 

 

 

 

800x600

84.9

72.2

75.0

60.3

56.2

640x480

84.6

75.0

72.8

66.7

60.0

720x400

87.8

70.1

 

 

 

LVDS connected 1400x1050+0+0 (normal left inverted right x axis y axis) 0mm x 0mm

1400x1050

1360x76860.0

1280x800

1152x864

1280x768

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Contents F8-x8664 on the Acer Ferrari 3400LMi Table of ContentsF8­x8664 on the Acer Ferrari 3400LMi Quick reference guide IntroductionVersion Hardware Status Details Graphical installer InstallationPotential pitfalls Disk sizeUpgrading the drive Ieee 1394 FirewireHard drive # time cp ­rp /media/ieee1394disk/430MBfolder ~ Potential problemsComments Configuring FirewireSpecial keys & buttons In-1 Card readerPC-card Key-codes Configuration procedureScan-codes Button Key-code Default X key symbolsLinux key-codes = XF86WWW Key-codes revisitedWWW CPU & Acpi support Configure actionsSuspend GraphicsCPU frequency scaling BasicsRadeon driver Simple configurationDual-Head # xrandr ­q Screen 0 minimum Virtual screen sizeFn-F5 button Xrandr tool10.3 3D acceleration Other observations Simple benchmarkOptimization Load detection TV-outNtsc or PAL InitializationTouch-pad Wireless NICWlan firmware Installing WlanWlan tools Essid Get started with WlanManual way # iwconfig wlan0 essid Perspektiv GUI way BluetoothVerify installation UP Running Pscan Using a phone modemPrepare the laptop Prepare the phoneObex File Transfer 0x1106 Protocol Descriptor List Short explanation of the command above Static configurationDynamic routine AT+CGDATA=PPP,1 GprsInstallation KBluetoothSending files Mouse & keyboardScan for devices Mouse & keyboardLock screen Transfer files Configuring IrDAInfrared DMA IRQModem Testing IrDAInstalling daemon SLMODEMDDEVICE= SLMODEMDCOUNTRY=SWEDENDisconnecting Potential issueConnecting System hang ReferencesF8­x8664 on the Acer Ferrari 3400LMi Appendix a /etc/X11/xorg.conf XAA Ntsc Appendix B dual­head.shINTERNAL=LVDS ACTION=$1­$DEFAULTACTION CURNDX=$CURNDX­$INTNDX CURRENT=$ALLOUT$CURNDX Lvds NEXT=$CURRENT LVDS+VGA­0Internal internal Tvout Usage Esac Appendix C dun­bind.sh F8­x8664 on the Acer Ferrari 3400LMi SLMODEMDOPTS=$SLMODEMDOPTS $SLMODEMDDEVICE $CONFIGRETVAL=0 RETVAL=$? F8­x8664 on the Acer Ferrari 3400LMi