[mythtv-users] Dual-Head and misplacement of mythfrontend

ikke ikke at iki.fi
Wed Aug 8 09:56:51 UTC 2007


I built up a new system for a frontend yesterday. There is a IBM t41
connected to LCD TV. I got two displays to show up with MergedFB
option and open source ati driver under Ubuntu Feisty. But for some
reason mythtvfrontend is placing itself on wrong screen.

I have resolution 1280x1024 for TV which is "LeftOf" 1450x1050
resolution laptop screen [1].

OK: If I startup mythtvfrontend and Xinerama display is 1 in settings
Everything works as expected, picture comes with right resolution on
laptop LCD.

FAIL: I start frontend with option Xinerama display as 0 I get correct
TV resolution, but the picture will be drawn to the laptop LCD, not to
TV as supposed. Any ideas why?

In both cases mythtvfrontend command line logs say correctly that
using the right xinerama display, and the right resolutions. Frontend
is few weeks old trunk.

[1] xorg setup:

Section "Device"
        Identifier      "ATI Technologies Inc Radeon R250 [Mobility
FireGL 9000]"
        Driver  "ati"
        BusID   "PCI:1:0:0"
        Option  "BIOSHotkeys"           "on"
        Option  "XAANoOffscreenPixmaps"
        #Option "MonitorLayout"         "LVDS, TMDS"
        #Option "MonitorLayout"         "LCD, CRT"
        Option  "MonitorLayout"         "LVDS, CRT"
        Option  "CRT2Position"          "LeftOf"
        Option  "MetaModes"             "1400x1050-1280x1024"
        Option  "MergedXinerama"        "on"
        Option  "MergedNonRectangular"  "true"
        Option  "MergedFB"              "true"
        Option  "AGPMode"               "4"
        Option  "AGPFastWrite"          "true"
        Option  "DisableGLXRootClipping" "true"
        Option  "AddARGBGLXVisuals"     "true"
        Option  "AllowGLXWithComposite" "true"
        Option  "EnablePageFlip"        "true"

Section "Monitor"
        Identifier      "Samsumg LE40M86BC"
        Option          "DPMS"
        HorizSync       31.469-79.976
        # Option                "CRT2HSync"     31.469-79.976
        VertRefresh     56.250-75.0
        # Option                "CRT2VRefresh"  56.250-75.0

Section "Monitor"
        Identifier      "Generic Monitor"
        Option          "DPMS"
        Identifier      "Generic Monitor"
        Option          "DPMS"

Section "Screen"
        Identifier      "Default Screen"
        Device          "ATI Technologies Inc Radeon R250 [Mobility
FireGL 9000]"
        #Monitor                "Samsumg LE40M86BC"
        Monitor         "Generic Monitor"
        DefaultDepth    24
        SubSection "Display"
                Depth           24
                Modes           "1400x1050" "1280x1024"

Section "ServerLayout"
        Option          "AIGLX"         "true"
        Identifier      "Default Layout"
        Screen          "Default Screen"
        InputDevice     "Generic Keyboard"
        InputDevice     "Configured Mouse"
        InputDevice     "stylus"        "SendCoreEvents"
        InputDevice     "cursor"        "SendCoreEvents"
        InputDevice     "eraser"        "SendCoreEvents"
        InputDevice     "Synaptics Touchpad"

Section "DRI"
        Mode    0666

Section "Extensions"
        Option  "Composite" "Enable"

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