xinerama, 2 cards, 3 monitors Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern) 2019 Community Moderator Election Results Why I closed the “Why is Kali so hard” questionDual monitor configuration on Intel Ivy BridgeSetting dual monitor with different resolutions using ati open source driverSecond monitor detected but not receiving signal?Cannot start xserver - “Failed to assign any connected display devices to X screen 0”xf86EnableIOPorts: failed to set IOPL for I/O (Operation not permitted)Why doesn't my right screen refresh correctly when my left screen does?Three monitors on two video cards (NVIDIA and RADEON)Desktop spanning all monitorsDebian: could not get screen informationexternal monitor not detected after loginRandR with internal intel iGPU and old Trident card
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xinerama, 2 cards, 3 monitors
Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)
2019 Community Moderator Election Results
Why I closed the “Why is Kali so hard” questionDual monitor configuration on Intel Ivy BridgeSetting dual monitor with different resolutions using ati open source driverSecond monitor detected but not receiving signal?Cannot start xserver - “Failed to assign any connected display devices to X screen 0”xf86EnableIOPorts: failed to set IOPL for I/O (Operation not permitted)Why doesn't my right screen refresh correctly when my left screen does?Three monitors on two video cards (NVIDIA and RADEON)Desktop spanning all monitorsDebian: could not get screen informationexternal monitor not detected after loginRandR with internal intel iGPU and old Trident card
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I've been trying to get this right and I'm so nearly there, but not quite. This machine has an Intel adapter with one monitor, and an ATI adapter with two. I'm happy to use xinerama to get this working.
Here is my xorg.conf (Ubuntu 12.04):-
Section "Monitor"
Identifier "Dell1"
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Dell2"
Option "DPMS"
Option "Left" "Dell3"
EndSection
Section "Monitor"
Identifier "Dell3"
Option "DPMS"
EndSection
Section "Device"
Identifier "intel"
Driver "intel"
BusID "PCI:0:2:0"
EndSection
Section "Device"
Identifier "ati"
Driver "radeon"
BusID "PCI:2:0:0"
# Option "Monitor-DVI-0" "Dell3"
# Option "Monitor-VGA-1" "Dell2"
EndSection
Section "Screen"
Identifier "Screen 0"
Device "intel"
#Monitor "Dell1"
DefaultDepth 24
EndSection
Section "Screen"
Identifier "Screen 1"
Device "ati"
Monitor "Dell2"
SubSection "Display"
Depth 24
Virtual 2560 1024
EndSubSection
EndSection
Section "ServerLayout"
Option "xinerama" "on"
Identifier "multihead"
Screen "Screen 0"
Screen "Screen 1" LeftOf "Screen 0"
EndSection
Section "Module"
Load "glx"
EndSection
All three monitors are 1280x1024 Dells. With this, I get all three monitors live. The one connected to the Intel (the rightmost) is the primary
Physical arrangement on desk:
[ Dell 3 ] [ Dell 2 ] [ Dell 1 ]
ATI Intel
X server layout:
[Dell 2 ] ] [ Dell 1 ]
[ Dell 3 ] [ ]
By this, I mean that if you start at the RHS on Dell 1, and move left, you jump to Dell 3 next. Dell 3 is showing a virtual size of 2560, and as you hit the left edge of it, it starts to pan. At this point, you also appear on Dell 2, and by the time you hit the leftmost edge, Dell 3 and 2 are showing the same thing.
How can I get the monitors to lay out correctly?
Many thanks!
John
EDIT:-
Tried this instead, and again it almost works. Without the "Primary" options I get Unity on Dell1 and black screens on the others (but mouse moves across). With "Primary" options I get no Unity, background on all monitors which flickers, displays flicker when keys pressed, and it's generally very odd.
Section "Monitor"
Identifier "Dell1"
Option "DPMS"
Option "Primary" "False"
EndSection
Section "Monitor"
Identifier "Dell2"
Option "DPMS"
Option "Primary" "False"
EndSection
Section "Monitor"
Identifier "Dell3"
Option "DPMS"
Option "Primary" "True"
EndSection
Section "Device"
Identifier "intel"
Driver "intel"
BusID "PCI:0:2:0"
EndSection
Sec>tion "Device"
Identifier "ati0"
Driver "radeon"
Option "ZaphodHeads" "DVI-0"
BusID "PCI:2:0:0"
Screen 0
EndSection
Section "Device"
Identifier "ati1"
Driver "radeon"
Option "ZaphodHeads" "VGA-1"
BusID "PCI:2:0:0"
Screen 1
EndSection
Section "Screen"
Identifier "Screen 0"
Device "intel"
Monitor "Dell1"
DefaultDepth 24
EndSection
Section "Screen"
Identifier "Screen 1"
Device "ati0"
Monitor "Dell2"
DefaultDepth 24
EndSection
Section "Screen"
Identifier "Screen 2"
Device "ati1"
Monitor "Dell3"
DefaultDepth 24
EndSection
Section "ServerLayout"
Option "xinerama" "on"
Identifier "multihead"
Screen "Screen 0"
Screen "Screen 1" LeftOf "Screen 0"
Screen "Screen 2" LeftOf "Screen 1"
EndSection
Section "Module"
Load "glx"
EndSection
ubuntu xorg x11 multi-monitor
add a comment |
I've been trying to get this right and I'm so nearly there, but not quite. This machine has an Intel adapter with one monitor, and an ATI adapter with two. I'm happy to use xinerama to get this working.
Here is my xorg.conf (Ubuntu 12.04):-
Section "Monitor"
Identifier "Dell1"
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Dell2"
Option "DPMS"
Option "Left" "Dell3"
EndSection
Section "Monitor"
Identifier "Dell3"
Option "DPMS"
EndSection
Section "Device"
Identifier "intel"
Driver "intel"
BusID "PCI:0:2:0"
EndSection
Section "Device"
Identifier "ati"
Driver "radeon"
BusID "PCI:2:0:0"
# Option "Monitor-DVI-0" "Dell3"
# Option "Monitor-VGA-1" "Dell2"
EndSection
Section "Screen"
Identifier "Screen 0"
Device "intel"
#Monitor "Dell1"
DefaultDepth 24
EndSection
Section "Screen"
Identifier "Screen 1"
Device "ati"
Monitor "Dell2"
SubSection "Display"
Depth 24
Virtual 2560 1024
EndSubSection
EndSection
Section "ServerLayout"
Option "xinerama" "on"
Identifier "multihead"
Screen "Screen 0"
Screen "Screen 1" LeftOf "Screen 0"
EndSection
Section "Module"
Load "glx"
EndSection
All three monitors are 1280x1024 Dells. With this, I get all three monitors live. The one connected to the Intel (the rightmost) is the primary
Physical arrangement on desk:
[ Dell 3 ] [ Dell 2 ] [ Dell 1 ]
ATI Intel
X server layout:
[Dell 2 ] ] [ Dell 1 ]
[ Dell 3 ] [ ]
By this, I mean that if you start at the RHS on Dell 1, and move left, you jump to Dell 3 next. Dell 3 is showing a virtual size of 2560, and as you hit the left edge of it, it starts to pan. At this point, you also appear on Dell 2, and by the time you hit the leftmost edge, Dell 3 and 2 are showing the same thing.
How can I get the monitors to lay out correctly?
Many thanks!
John
EDIT:-
Tried this instead, and again it almost works. Without the "Primary" options I get Unity on Dell1 and black screens on the others (but mouse moves across). With "Primary" options I get no Unity, background on all monitors which flickers, displays flicker when keys pressed, and it's generally very odd.
Section "Monitor"
Identifier "Dell1"
Option "DPMS"
Option "Primary" "False"
EndSection
Section "Monitor"
Identifier "Dell2"
Option "DPMS"
Option "Primary" "False"
EndSection
Section "Monitor"
Identifier "Dell3"
Option "DPMS"
Option "Primary" "True"
EndSection
Section "Device"
Identifier "intel"
Driver "intel"
BusID "PCI:0:2:0"
EndSection
Sec>tion "Device"
Identifier "ati0"
Driver "radeon"
Option "ZaphodHeads" "DVI-0"
BusID "PCI:2:0:0"
Screen 0
EndSection
Section "Device"
Identifier "ati1"
Driver "radeon"
Option "ZaphodHeads" "VGA-1"
BusID "PCI:2:0:0"
Screen 1
EndSection
Section "Screen"
Identifier "Screen 0"
Device "intel"
Monitor "Dell1"
DefaultDepth 24
EndSection
Section "Screen"
Identifier "Screen 1"
Device "ati0"
Monitor "Dell2"
DefaultDepth 24
EndSection
Section "Screen"
Identifier "Screen 2"
Device "ati1"
Monitor "Dell3"
DefaultDepth 24
EndSection
Section "ServerLayout"
Option "xinerama" "on"
Identifier "multihead"
Screen "Screen 0"
Screen "Screen 1" LeftOf "Screen 0"
Screen "Screen 2" LeftOf "Screen 1"
EndSection
Section "Module"
Load "glx"
EndSection
ubuntu xorg x11 multi-monitor
add a comment |
I've been trying to get this right and I'm so nearly there, but not quite. This machine has an Intel adapter with one monitor, and an ATI adapter with two. I'm happy to use xinerama to get this working.
Here is my xorg.conf (Ubuntu 12.04):-
Section "Monitor"
Identifier "Dell1"
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Dell2"
Option "DPMS"
Option "Left" "Dell3"
EndSection
Section "Monitor"
Identifier "Dell3"
Option "DPMS"
EndSection
Section "Device"
Identifier "intel"
Driver "intel"
BusID "PCI:0:2:0"
EndSection
Section "Device"
Identifier "ati"
Driver "radeon"
BusID "PCI:2:0:0"
# Option "Monitor-DVI-0" "Dell3"
# Option "Monitor-VGA-1" "Dell2"
EndSection
Section "Screen"
Identifier "Screen 0"
Device "intel"
#Monitor "Dell1"
DefaultDepth 24
EndSection
Section "Screen"
Identifier "Screen 1"
Device "ati"
Monitor "Dell2"
SubSection "Display"
Depth 24
Virtual 2560 1024
EndSubSection
EndSection
Section "ServerLayout"
Option "xinerama" "on"
Identifier "multihead"
Screen "Screen 0"
Screen "Screen 1" LeftOf "Screen 0"
EndSection
Section "Module"
Load "glx"
EndSection
All three monitors are 1280x1024 Dells. With this, I get all three monitors live. The one connected to the Intel (the rightmost) is the primary
Physical arrangement on desk:
[ Dell 3 ] [ Dell 2 ] [ Dell 1 ]
ATI Intel
X server layout:
[Dell 2 ] ] [ Dell 1 ]
[ Dell 3 ] [ ]
By this, I mean that if you start at the RHS on Dell 1, and move left, you jump to Dell 3 next. Dell 3 is showing a virtual size of 2560, and as you hit the left edge of it, it starts to pan. At this point, you also appear on Dell 2, and by the time you hit the leftmost edge, Dell 3 and 2 are showing the same thing.
How can I get the monitors to lay out correctly?
Many thanks!
John
EDIT:-
Tried this instead, and again it almost works. Without the "Primary" options I get Unity on Dell1 and black screens on the others (but mouse moves across). With "Primary" options I get no Unity, background on all monitors which flickers, displays flicker when keys pressed, and it's generally very odd.
Section "Monitor"
Identifier "Dell1"
Option "DPMS"
Option "Primary" "False"
EndSection
Section "Monitor"
Identifier "Dell2"
Option "DPMS"
Option "Primary" "False"
EndSection
Section "Monitor"
Identifier "Dell3"
Option "DPMS"
Option "Primary" "True"
EndSection
Section "Device"
Identifier "intel"
Driver "intel"
BusID "PCI:0:2:0"
EndSection
Sec>tion "Device"
Identifier "ati0"
Driver "radeon"
Option "ZaphodHeads" "DVI-0"
BusID "PCI:2:0:0"
Screen 0
EndSection
Section "Device"
Identifier "ati1"
Driver "radeon"
Option "ZaphodHeads" "VGA-1"
BusID "PCI:2:0:0"
Screen 1
EndSection
Section "Screen"
Identifier "Screen 0"
Device "intel"
Monitor "Dell1"
DefaultDepth 24
EndSection
Section "Screen"
Identifier "Screen 1"
Device "ati0"
Monitor "Dell2"
DefaultDepth 24
EndSection
Section "Screen"
Identifier "Screen 2"
Device "ati1"
Monitor "Dell3"
DefaultDepth 24
EndSection
Section "ServerLayout"
Option "xinerama" "on"
Identifier "multihead"
Screen "Screen 0"
Screen "Screen 1" LeftOf "Screen 0"
Screen "Screen 2" LeftOf "Screen 1"
EndSection
Section "Module"
Load "glx"
EndSection
ubuntu xorg x11 multi-monitor
I've been trying to get this right and I'm so nearly there, but not quite. This machine has an Intel adapter with one monitor, and an ATI adapter with two. I'm happy to use xinerama to get this working.
Here is my xorg.conf (Ubuntu 12.04):-
Section "Monitor"
Identifier "Dell1"
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Dell2"
Option "DPMS"
Option "Left" "Dell3"
EndSection
Section "Monitor"
Identifier "Dell3"
Option "DPMS"
EndSection
Section "Device"
Identifier "intel"
Driver "intel"
BusID "PCI:0:2:0"
EndSection
Section "Device"
Identifier "ati"
Driver "radeon"
BusID "PCI:2:0:0"
# Option "Monitor-DVI-0" "Dell3"
# Option "Monitor-VGA-1" "Dell2"
EndSection
Section "Screen"
Identifier "Screen 0"
Device "intel"
#Monitor "Dell1"
DefaultDepth 24
EndSection
Section "Screen"
Identifier "Screen 1"
Device "ati"
Monitor "Dell2"
SubSection "Display"
Depth 24
Virtual 2560 1024
EndSubSection
EndSection
Section "ServerLayout"
Option "xinerama" "on"
Identifier "multihead"
Screen "Screen 0"
Screen "Screen 1" LeftOf "Screen 0"
EndSection
Section "Module"
Load "glx"
EndSection
All three monitors are 1280x1024 Dells. With this, I get all three monitors live. The one connected to the Intel (the rightmost) is the primary
Physical arrangement on desk:
[ Dell 3 ] [ Dell 2 ] [ Dell 1 ]
ATI Intel
X server layout:
[Dell 2 ] ] [ Dell 1 ]
[ Dell 3 ] [ ]
By this, I mean that if you start at the RHS on Dell 1, and move left, you jump to Dell 3 next. Dell 3 is showing a virtual size of 2560, and as you hit the left edge of it, it starts to pan. At this point, you also appear on Dell 2, and by the time you hit the leftmost edge, Dell 3 and 2 are showing the same thing.
How can I get the monitors to lay out correctly?
Many thanks!
John
EDIT:-
Tried this instead, and again it almost works. Without the "Primary" options I get Unity on Dell1 and black screens on the others (but mouse moves across). With "Primary" options I get no Unity, background on all monitors which flickers, displays flicker when keys pressed, and it's generally very odd.
Section "Monitor"
Identifier "Dell1"
Option "DPMS"
Option "Primary" "False"
EndSection
Section "Monitor"
Identifier "Dell2"
Option "DPMS"
Option "Primary" "False"
EndSection
Section "Monitor"
Identifier "Dell3"
Option "DPMS"
Option "Primary" "True"
EndSection
Section "Device"
Identifier "intel"
Driver "intel"
BusID "PCI:0:2:0"
EndSection
Sec>tion "Device"
Identifier "ati0"
Driver "radeon"
Option "ZaphodHeads" "DVI-0"
BusID "PCI:2:0:0"
Screen 0
EndSection
Section "Device"
Identifier "ati1"
Driver "radeon"
Option "ZaphodHeads" "VGA-1"
BusID "PCI:2:0:0"
Screen 1
EndSection
Section "Screen"
Identifier "Screen 0"
Device "intel"
Monitor "Dell1"
DefaultDepth 24
EndSection
Section "Screen"
Identifier "Screen 1"
Device "ati0"
Monitor "Dell2"
DefaultDepth 24
EndSection
Section "Screen"
Identifier "Screen 2"
Device "ati1"
Monitor "Dell3"
DefaultDepth 24
EndSection
Section "ServerLayout"
Option "xinerama" "on"
Identifier "multihead"
Screen "Screen 0"
Screen "Screen 1" LeftOf "Screen 0"
Screen "Screen 2" LeftOf "Screen 1"
EndSection
Section "Module"
Load "glx"
EndSection
ubuntu xorg x11 multi-monitor
ubuntu xorg x11 multi-monitor
edited May 2 '12 at 17:10
JohnCC
asked May 2 '12 at 15:16
JohnCCJohnCC
16614
16614
add a comment |
add a comment |
1 Answer
1
active
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votes
I am not sure if this helps - but I had some problems on CentOS with a dual-head-configuration, too.
What finally worked:
Section "ServerLayout"
Identifier "Multihead layout"
Screen 0 "Screen0" LeftOf "Screen1"
Screen 1 "Screen1" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
Option "Xinerama" "on"
Option "Clone" "on"
EndSection
For the Monitors (two identical ones) I only left one modeline and commented out the Sync and refresh lines:
Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Dell 1905FP (Digital)"
### Comment all HorizSync and VertSync values to use DDC:
# HorizSync 30.0 - 81.0
# VertRefresh 56.0 - 76.0
Option "dpms"
Option "xrandr"
Modeline "1280x1024" 108.00 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
EndSection
Section "Monitor"
Identifier "Monitor1"
VendorName "Monitor Vendor"
ModelName "Dell 1905FP (Digital)"
### Comment all HorizSync and VertSync values to use DDC:
# HorizSync 30.0 - 81.0
# VertRefresh 56.0 - 76.0
Option "dpms"
Option "xrandr"
Modeline "1280x1024" 108.00 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
EndSection
The video-card is a dual-head ATI (comparable to yours I think). Note the "screen" parameter within the device-section.
Section "Device"
Identifier "Videocard0"
Driver "r500"
BusID "PCI:3:0:0"
Option "xrandr" "True"
Screen 0
EndSection
Section "Device"
Identifier "Videocard1"
Driver "r500"
VendorName "Videocard Vendor"
BoardName "ATI Technologies Inc RV610 [Radeon HD 2400 XT]"
BusID "PCI:3:0:0"
Option "xrandr" "True"
Screen 1
EndSection
Now putting it all togehter for the screens - again - I allowed no choice for the resolutions and had to force 24bit:
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x1024"
Virtual 1280 1024
EndSubSection
EndSection
Section "Screen"
Identifier "Screen1"
Device "Videocard1"
Monitor "Monitor1"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x1024"
Virtual 1280 1024
EndSubSection
EndSection
In KDE I had so set:
- enable virtual workspaces for multiple monitors
- Monitor1: x=0, y=0, width=1280, hight=1024
- Monitor2: x=1280, y=0, width=1280, hight=1024
add a comment |
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I am not sure if this helps - but I had some problems on CentOS with a dual-head-configuration, too.
What finally worked:
Section "ServerLayout"
Identifier "Multihead layout"
Screen 0 "Screen0" LeftOf "Screen1"
Screen 1 "Screen1" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
Option "Xinerama" "on"
Option "Clone" "on"
EndSection
For the Monitors (two identical ones) I only left one modeline and commented out the Sync and refresh lines:
Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Dell 1905FP (Digital)"
### Comment all HorizSync and VertSync values to use DDC:
# HorizSync 30.0 - 81.0
# VertRefresh 56.0 - 76.0
Option "dpms"
Option "xrandr"
Modeline "1280x1024" 108.00 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
EndSection
Section "Monitor"
Identifier "Monitor1"
VendorName "Monitor Vendor"
ModelName "Dell 1905FP (Digital)"
### Comment all HorizSync and VertSync values to use DDC:
# HorizSync 30.0 - 81.0
# VertRefresh 56.0 - 76.0
Option "dpms"
Option "xrandr"
Modeline "1280x1024" 108.00 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
EndSection
The video-card is a dual-head ATI (comparable to yours I think). Note the "screen" parameter within the device-section.
Section "Device"
Identifier "Videocard0"
Driver "r500"
BusID "PCI:3:0:0"
Option "xrandr" "True"
Screen 0
EndSection
Section "Device"
Identifier "Videocard1"
Driver "r500"
VendorName "Videocard Vendor"
BoardName "ATI Technologies Inc RV610 [Radeon HD 2400 XT]"
BusID "PCI:3:0:0"
Option "xrandr" "True"
Screen 1
EndSection
Now putting it all togehter for the screens - again - I allowed no choice for the resolutions and had to force 24bit:
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x1024"
Virtual 1280 1024
EndSubSection
EndSection
Section "Screen"
Identifier "Screen1"
Device "Videocard1"
Monitor "Monitor1"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x1024"
Virtual 1280 1024
EndSubSection
EndSection
In KDE I had so set:
- enable virtual workspaces for multiple monitors
- Monitor1: x=0, y=0, width=1280, hight=1024
- Monitor2: x=1280, y=0, width=1280, hight=1024
add a comment |
I am not sure if this helps - but I had some problems on CentOS with a dual-head-configuration, too.
What finally worked:
Section "ServerLayout"
Identifier "Multihead layout"
Screen 0 "Screen0" LeftOf "Screen1"
Screen 1 "Screen1" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
Option "Xinerama" "on"
Option "Clone" "on"
EndSection
For the Monitors (two identical ones) I only left one modeline and commented out the Sync and refresh lines:
Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Dell 1905FP (Digital)"
### Comment all HorizSync and VertSync values to use DDC:
# HorizSync 30.0 - 81.0
# VertRefresh 56.0 - 76.0
Option "dpms"
Option "xrandr"
Modeline "1280x1024" 108.00 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
EndSection
Section "Monitor"
Identifier "Monitor1"
VendorName "Monitor Vendor"
ModelName "Dell 1905FP (Digital)"
### Comment all HorizSync and VertSync values to use DDC:
# HorizSync 30.0 - 81.0
# VertRefresh 56.0 - 76.0
Option "dpms"
Option "xrandr"
Modeline "1280x1024" 108.00 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
EndSection
The video-card is a dual-head ATI (comparable to yours I think). Note the "screen" parameter within the device-section.
Section "Device"
Identifier "Videocard0"
Driver "r500"
BusID "PCI:3:0:0"
Option "xrandr" "True"
Screen 0
EndSection
Section "Device"
Identifier "Videocard1"
Driver "r500"
VendorName "Videocard Vendor"
BoardName "ATI Technologies Inc RV610 [Radeon HD 2400 XT]"
BusID "PCI:3:0:0"
Option "xrandr" "True"
Screen 1
EndSection
Now putting it all togehter for the screens - again - I allowed no choice for the resolutions and had to force 24bit:
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x1024"
Virtual 1280 1024
EndSubSection
EndSection
Section "Screen"
Identifier "Screen1"
Device "Videocard1"
Monitor "Monitor1"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x1024"
Virtual 1280 1024
EndSubSection
EndSection
In KDE I had so set:
- enable virtual workspaces for multiple monitors
- Monitor1: x=0, y=0, width=1280, hight=1024
- Monitor2: x=1280, y=0, width=1280, hight=1024
add a comment |
I am not sure if this helps - but I had some problems on CentOS with a dual-head-configuration, too.
What finally worked:
Section "ServerLayout"
Identifier "Multihead layout"
Screen 0 "Screen0" LeftOf "Screen1"
Screen 1 "Screen1" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
Option "Xinerama" "on"
Option "Clone" "on"
EndSection
For the Monitors (two identical ones) I only left one modeline and commented out the Sync and refresh lines:
Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Dell 1905FP (Digital)"
### Comment all HorizSync and VertSync values to use DDC:
# HorizSync 30.0 - 81.0
# VertRefresh 56.0 - 76.0
Option "dpms"
Option "xrandr"
Modeline "1280x1024" 108.00 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
EndSection
Section "Monitor"
Identifier "Monitor1"
VendorName "Monitor Vendor"
ModelName "Dell 1905FP (Digital)"
### Comment all HorizSync and VertSync values to use DDC:
# HorizSync 30.0 - 81.0
# VertRefresh 56.0 - 76.0
Option "dpms"
Option "xrandr"
Modeline "1280x1024" 108.00 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
EndSection
The video-card is a dual-head ATI (comparable to yours I think). Note the "screen" parameter within the device-section.
Section "Device"
Identifier "Videocard0"
Driver "r500"
BusID "PCI:3:0:0"
Option "xrandr" "True"
Screen 0
EndSection
Section "Device"
Identifier "Videocard1"
Driver "r500"
VendorName "Videocard Vendor"
BoardName "ATI Technologies Inc RV610 [Radeon HD 2400 XT]"
BusID "PCI:3:0:0"
Option "xrandr" "True"
Screen 1
EndSection
Now putting it all togehter for the screens - again - I allowed no choice for the resolutions and had to force 24bit:
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x1024"
Virtual 1280 1024
EndSubSection
EndSection
Section "Screen"
Identifier "Screen1"
Device "Videocard1"
Monitor "Monitor1"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x1024"
Virtual 1280 1024
EndSubSection
EndSection
In KDE I had so set:
- enable virtual workspaces for multiple monitors
- Monitor1: x=0, y=0, width=1280, hight=1024
- Monitor2: x=1280, y=0, width=1280, hight=1024
I am not sure if this helps - but I had some problems on CentOS with a dual-head-configuration, too.
What finally worked:
Section "ServerLayout"
Identifier "Multihead layout"
Screen 0 "Screen0" LeftOf "Screen1"
Screen 1 "Screen1" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
Option "Xinerama" "on"
Option "Clone" "on"
EndSection
For the Monitors (two identical ones) I only left one modeline and commented out the Sync and refresh lines:
Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Dell 1905FP (Digital)"
### Comment all HorizSync and VertSync values to use DDC:
# HorizSync 30.0 - 81.0
# VertRefresh 56.0 - 76.0
Option "dpms"
Option "xrandr"
Modeline "1280x1024" 108.00 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
EndSection
Section "Monitor"
Identifier "Monitor1"
VendorName "Monitor Vendor"
ModelName "Dell 1905FP (Digital)"
### Comment all HorizSync and VertSync values to use DDC:
# HorizSync 30.0 - 81.0
# VertRefresh 56.0 - 76.0
Option "dpms"
Option "xrandr"
Modeline "1280x1024" 108.00 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
EndSection
The video-card is a dual-head ATI (comparable to yours I think). Note the "screen" parameter within the device-section.
Section "Device"
Identifier "Videocard0"
Driver "r500"
BusID "PCI:3:0:0"
Option "xrandr" "True"
Screen 0
EndSection
Section "Device"
Identifier "Videocard1"
Driver "r500"
VendorName "Videocard Vendor"
BoardName "ATI Technologies Inc RV610 [Radeon HD 2400 XT]"
BusID "PCI:3:0:0"
Option "xrandr" "True"
Screen 1
EndSection
Now putting it all togehter for the screens - again - I allowed no choice for the resolutions and had to force 24bit:
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x1024"
Virtual 1280 1024
EndSubSection
EndSection
Section "Screen"
Identifier "Screen1"
Device "Videocard1"
Monitor "Monitor1"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x1024"
Virtual 1280 1024
EndSubSection
EndSection
In KDE I had so set:
- enable virtual workspaces for multiple monitors
- Monitor1: x=0, y=0, width=1280, hight=1024
- Monitor2: x=1280, y=0, width=1280, hight=1024
edited 10 hours ago
Rui F Ribeiro
42.1k1484142
42.1k1484142
answered May 21 '12 at 13:39
NilsNils
12.8k73771
12.8k73771
add a comment |
add a comment |
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-multi-monitor, ubuntu, x11, xorg