Xserver Issues
From Blue-IT.org Wiki
Contents
Compiz login/out and password dialog effect
(This is for Ubuntu Lucid)
in login window match type:
(iclass=^xsplash)
in logout window match type:
For an english environment:
class=Gnome-session & (title=Log Out of the Session | title=Shut Down the Computer) & type=DIALOG
class=Gnome-session & (title=Log Out of the Session | title=Shut Down the Computer) & type=DIALOG | class=Polkit-gnome-authentication-agent-1 & (title=Legitimate)
and the german environment:
class=Gnome-session & (title=Sitzung abmelden | title=Rechner ausschalten) & type=DIALOG
(class=Gnome-session & (title=Sitzung abmelden | title=Rechner ausschalten) & type=DIALOG ) | class=Polkit-gnome-authentication-agent-1 & (title=Legitimieren)
i hope that helps [1]
Ubuntu
The ubuntu(debian)-way of configuring the xserver is to open a terminal and do
dpkg-reconfigure xserver-xorg
This gives you a runnable but not anyway optimal configuration.
Other useful information
Usefull informations you'll find in the (german) wiki pages here.
xorg-edit
But fortunately we are living in open source land and there is now a nice program to configure the xserver. It's called xorg-edit and can be visited here or direct downloaded at at sourceforge.
It automatically checks the syntax and gives the abitlity to write xml files for special configurations.
This program however is only intended to be an editor for the xorg.conf file. IT WON'T HELP YOU if you don't exactly know what to do and have profound knowledge about the xservers configuration file.
SuSE
YaST and SaX2 are your best friends!
For older versions of SuSE it might be necessary to install manually the nvidia/ati driver and start sax2 with the following (for nvidia):
init 3 sax2 -m 0=nvidia
Start a program in fullscreen X session
If you like to start a single program, e.g. mythfrontend on another screen - e.g. a TV or a second monitor, simple use the next line:
xinit /bin/sh -c "DISPLAY=:1 mythfrontend" -- /usr/bin/X :1 -ac
And from HowTo Setup MythTV
[...] I have this first script run at boot up time:
#!/bin/bash cd /root HOME='/root' export HOME xinit /root/xinitmyth -- :0 &
and the startup file /root/xinitmyth
xsetroot -solid gray & mythfrontend
[...]
Modline generator
GTF is a modline generator.
linux: > gtf
usage: gtf x y refresh [-v|--verbose] [-f|--fbmode] [-x|--xorgmode]
x : the desired horizontal resolution (required)
y : the desired vertical resolution (required)
refresh : the desired refresh rate (required)
-v|--verbose : enable verbose printouts (traces each step of the computation)
-f|--fbmode : output an fbset(8)-style mode description
-x|--xorgmode : output an Xorg-style mode description (this is the default
if no mode description is requested)
This gives me e.g.
linux: > gtf 768 576 50 -x # 768x576 @ 50.00 Hz (GTF) hsync: 29.65 kHz; pclk: 28.46 MHz Modeline "768x576_50.00" 28.46 768 784 864 960 576 577 580 593 -HSync +Vsync
for a modline used with a HTPC (Home theatre PC) for a PAL-M TV out resolution.
Remember to use it you have to add the following in the Monitor' section of yur xorg.conf:
Section "Monitor" UseModes "MyModes" [...] End Section
If not already there you have to create a Modes section:
Section "Modes" Identifier "MyModes" Modeline "768x576_50.00" 28.46 768 784 864 960 576 577 580 593 -HSync +Vsync [...] End Section
And according to the fact, that the default depth will be 16 in our example here you schould add the new created mode in front of the other modes.
Section "Screen"
Identifier "Default Screen"
[...]
DefaultDepth 16
SubSection "Display"
Depth 16
Modes "768x576_50.00" "1024x768" "800x600" "640x480"
EndSubSection
EndSection:
Xrandr
Nvidia Card and Xrandr
For getting an nvidia setting with twinview working we have to change the xorg.conf like this:
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinViewXineramaInfoOrder" "DFP-0"
Option "TwinView" "1"
Option "metamodes" "DFP: nvidia-auto-select +0+0; DFP: 1680x1050 +0+0, CRT: nvidia-auto-select +1680+0;"
SubSection "Display"
Depth 24
EndSubSection
EndSection
With:
xrandr -s 0
we activate the first setting:
DFP: nvidia-auto-select +0+0;
With
xrandr -s 1
we activate the second (multimonitor) setting:
DFP: 1680x1050 +0+0, CRT: nvidia-auto-select +1680+0;
In the second example, an LCD Display with 1680x1050 on the left side (first entry) is attached to an CRT on the right side. The display of the CRT therefore has to be moved to the left (+1680+0) so that it fits next to the LCD. The settings of the CRT (width and height) is set via nvidia-auto-select.
The whole xorg.conf is here:
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "0"
EndSection
Section "Module"
Load "glx"
EndSection
Section "ServerFlags"
Option "Xinerama" "1"
EndSection
Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection
Section "InputDevice"
# generated from default
Identifier "Keyboard0"
Driver "kbd"
EndSection
Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "VSN V7 P17S"
HorizSync 31.0 - 80.0
VertRefresh 56.0 - 75.0
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Monitor1"
VendorName "Unknown"
ModelName "CRT-0"
HorizSync 29.0 - 121.0
VertRefresh 43.0 - 160.0
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "Quadro NVS 140M"
Option "NvAgp" "1"
Option "NoLogo" "True"
EndSection
Section "Device"
Identifier "Device1"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "Quadro NVS 140M"
Option "NvAgp" "1"
Option "NoLogo" "True"
BusID "PCI:1:0:0"
Screen 1
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinViewXineramaInfoOrder" "DFP-0"
Option "TwinView" "1"
Option "metamodes" "DFP: nvidia-auto-select +0+0; DFP: 1680x1050 +0+0, CRT: nvidia-auto-select +1680+0;"
SubSection "Display"
Depth 24
EndSubSection
EndSection
Section "Screen"
Identifier "Screen1"
Device "Device1"
Monitor "Monitor1"
DefaultDepth 24
Option "TwinView" "0"
Option "metamodes" "CRT: 1280x1024 +0+0;"
SubSection "Display"
Depth 24
EndSubSection
EndSection
Section "Extensions"
Option "Composite" "On"
EndSection
Source: [2]
Autoconfiguration
Xrandr gives the following info for single LCD on my laptop:
> xrandr Screen 0: minimum 1680 x 1050, current 1680 x 1050, maximum 2960 x 1050 default connected 1680x1050+0+0 0mm x 0mm 1680x1050 50.0* 2960x1050 51.0 50.0
and for dual screen:
Screen 0: minimum 1680 x 1050, current 2960 x 1050, maximum 2960 x 1050 default connected 2960x1050+0+0 0mm x 0mm 1680x1050 50.0 2960x1050 51.0* 50.0
The skript toggle_xrandr has to be changed the line "current 1680 x 1050" to your specific single LCD configuration.
#!/bin/bash xrandr | grep "Screen 0" | grep "current 1680 x 1050"; if [ $? -eq 1 ]; then xrandr -s 0; else xrandr -s 1; fi;
If you have real xrand informations you can use the following script:
EXTERNAL_OUTPUT=”Screen 1″
INTERNAL_OUTPUT=”Screen 0″
xrandr |grep $EXTERNAL_OUTPUT | grep ” connected ”
if [ $? -eq 0 ]; then
xrandr -s 0
else
xrandr -s 1
fi
At the end and so configured you can edit your keybindings for toggle your display settings!