Dualhead with different resolutions, MGA G550
No replies from the xorg-list. Does anybody here have any idea?
As a workaround, how can I define a key combination which would do
fbset -a -fb /dev/fb/1 "800x600-85" as root?
for some reason
kb::kbrequest:/usr/sbin/fbset -a -fb /dev/fb/1 "800x600-85"
in the /etc/inittab doesn't do it :(
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I want to set up a dual head configuration for X so that I have my 17"
LCD display as the first head with 1280x1024 resolution and my projector
as the second head with 800x600 resolution (two separate screens).
I know it works as I have used it before, but now I don't seem to get it
working. When I set the xorg.conf to use dual head and start X, the
screen just blanks. The only way to wake up the screen is to use fbset
to set the resolution on either head. The fbset can only be done from
another computer (via ssh connection) as the screen blanks totally.
After the screen wakes up, the configuration seems to work fine.
The Xorg.0.log seems like everything is working.
If I set the same resolution for both screens, the configuration works.
I think the problem started when I switched from 32-bit to 64-bit
(Debian AMD64).
Does anybody have any idea where to look for the source of this problem,
kernel, framebuffer, X?
The hardware:
Matrox G550 dual head with 32MB videoram
Motherboard MSI K8T Neo2-F with VIA K8T800Pro chipset
The software:
Debian AMD64 etch
X.org 6.8.2 (tested also with 6.8.99.900)
Kernel 2.6.13-mm1
WM Gnome or Enlightenment (tested also with twm)
The relevant parts of the xorg.conf:
Section "ServerFlags"
Option "StandbyTime" "5"
Option "SuspendTime" "10"
Option "OffTime" "20"
Option "DefaultServerLayout" "Single_Layout"
# Option "DefaultServerLayout" "Dual_Layout"
EndSection
Section "Module"
Load "dbe"
Load "extmod"
Load "type1"
Load "freetype"
Load "glx"
Load "dri"
Load "bitmap"
Load "ddc"
Load "GLcore"
Load "int10"
Load "vbe"
Load "v4l"
EndSection
Section "Monitor"
Identifier "Hitachi_CML174SXW"
HorizSync 24-80
VertRefresh 56-75
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Epson_EMP-S1H"
HorizSync 15-92
VertRefresh 50-85
EndSection
Section "Device"
Option "HWcursor" "False" # [<bool>]
Option "AGPMode" "4" # <i>
Identifier "Matrox_G550_1"
Driver "mga"
VendorName "Matrox Graphics, Inc."
BoardName "MGA G550 AGP"
BusID "PCI:1:0:0"
Screen 0
EndSection
Section "Device"
Option "HWcursor" "False" # [<bool>]
Option "AGPMode" "4" # <i>
Identifier "Matrox_G550_2"
Driver "mga"
VendorName "Matrox Graphics, Inc."
BoardName "MGA G550 AGP"
BusID "PCI:1:0:0"
Screen 1
EndSection
Section "Screen"
Identifier "Default_Screen"
Device "Matrox_G550_1"
Monitor "Hitachi_CML174SXW"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1280x1024" "1024x768" "800x600" "640x480"
EndSubSection
EndSection
Section "Screen"
Identifier "Projector_Screen"
Device "Matrox_G550_2"
Monitor "Epson_EMP-S1H"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "800x600"
EndSubSection
EndSection
Section "ServerLayout"
Identifier "Single_Layout"
InputDevice "Generic_Keyboard"
InputDevice "Configured_Mouse"
Screen 0 "Default_Screen" 0 0
EndSection
Section "ServerLayout"
Identifier "Dual_Layout"
InputDevice "Generic_Keyboard"
InputDevice "Configured_Mouse"
Screen "Default_Screen" Above "Projector_Screen"
Screen "Projector_Screen" 0 0
EndSection
Section "DRI"
Mode 0666
EndSection
Any help or pointers would be highly appreciated.
Simo
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