On Tue, 2008-12-16 at 12:07 +0100, strawks wrote: > Hi all, > > I have a motherboard with an intel G45 chipset. > When I try to launch an X server with no connected monitor it fails with > (other outputs are ignored according to my xorg.conf) : > > (II) intel(0): Output HDMI-2 using monitor section Sharp Aquos > (**) intel(0): Option "PreferredMode" "1080p" > (**) intel(0): Option "Enable" "true" > (II) intel(0): I2C bus "HDMIDDC_C" initialized. > (II) intel(0): HDMI output 2 detected > (II) intel(0): EDID for output HDMI-2 > (II) intel(0): Output HDMI-2 enabled by config file > (WW) intel(0): Unable to find initial modes > (EE) intel(0): Output HDMI-2 enabled but has no modes > (EE) intel(0): No valid modes. > > I have read how to setup dual head at > http://intellinuxgraphics.org/dualhead.html and my xorg.conf relevant > sections look like this : > Section "Device" > Identifier "Intel GMA X4500HD" > Driver "intel" > BusID "PCI:0:2:0" > VendorName "Intel" > BoardName "G45 [Intel GMA X4500HD]" > Option "AccelMethod" "EXA" > Option "ModeDebug" "true" > > Option "monitor-VGA" "ignore" > Option "monitor-HDMI-1" "ignore" > Option "monitor-HDMI-2" "Sharp Aquos" > EndSection > > Section "Monitor" > Identifier "ignore" > Option "ignore" "true" > EndSection > > Section "Monitor" > Identifier "Sharp Aquos" > ModeLine "1080p" 148.50 1920 2448 2492 2640 1080 1084 1089 > 1125 +hsync +vsync > VertRefresh 23-61 > HorizSync 15-68 > Option "PreferredMode" "1080p" > Option "enable" "true" > EndSection > > Is there a way to force the driver to use the 1080p mode even when no > monitor are connected? > > thanks in advance.
If you've ever successfully connected a monitor to your system and had X come up, please ignore the messages about SDVO. You almost surely have HDMI outputs, not SDVO. We'd need to see /var/log/Xorg.0.log with Option "ModeDebug" "TRUE" to figure out what was going wrong with your Option "enable" "true". -- Eric Anholt [email protected] [email protected]
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