Set 48Hz in XBMC ?
#1
Question 
After some years under M$ and Mediaportal, I'm back to XBMC Cool

Does anybody have be able to obtain (perfect) smoothly 48Hz playback of 24fps video with XBMC ? ... how please ?

I've enable options about audio resampling (Reclock like), but ...

My system :
XBMC live (9.11 repack) installed on HDD
GC = nVidia 9600 GSO

Thanks !
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#2
After some deeper tests, I still cannot obtain 48Hz on my XBMC Live ...

I've followed the post "How-to setup resolution" ... but it's not working for me ...

Here is the xorg.conf I've set :
Code:
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 1.0  (buildmeister@builder75)  Tue Dec  8 21:04:28 PST 2009

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
EndSection

Section "Files"
EndSection

Section "InputDevice"
    # generated from default
    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      "Unknown"
    HorizSync       28.0 - 36.0
    VertRefresh     43.0 - 72.0
    ModeLine       "1280x720_48Hz" 58.05 1280 1328 1456 1632 720 721 724 741 -hsync +vsync
    Option         "DPMS"
    Option         "ExactModeTimingsDVI" "TRUE"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    Option "ModeValidation"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "NoLogo" "True"
    Option         "ModeValidation" "NoEdidModes"
    SubSection     "Display"
        Depth       24
        Modes "1280x720_48Hz"
    EndSubSection
EndSection

Timings are from my "Windows nVidia setup" (same hardware, same GC, same screen) ...

XBMX stay in 1280x720 @ 50Hz ... Sad

Does anybody have succesfully set his XBMC to 1280x720@48Hz ? ... Eek
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#3
Add this to the screen section of your xorg.conf:

Code:
Option "DynamicTwinView"     "False"
Option "FlatPanelProperties" "Scaling = Native"
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#4
Seb.26 Wrote:After some deeper tests, I still cannot obtain 48Hz on my XBMC Live ...

I've followed the post "How-to setup resolution" ... but it's not working for me ...

Here is the xorg.conf I've set :
Code:
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 1.0  (buildmeister@builder75)  Tue Dec  8 21:04:28 PST 2009

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
EndSection

Section "Files"
EndSection

Section "InputDevice"
    # generated from default
    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      "Unknown"
    HorizSync       28.0 - 36.0
    VertRefresh     43.0 - 72.0
    ModeLine       "1280x720_48Hz" 58.05 1280 1328 1456 1632 720 721 724 741 -hsync +vsync
    Option         "DPMS"
    Option         "ExactModeTimingsDVI" "TRUE"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    Option "ModeValidation"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "NoLogo" "True"
    Option         "ModeValidation" "NoEdidModes"
    SubSection     "Display"
        Depth       24
        Modes "1280x720_48Hz"
    EndSubSection
EndSection

Timings are from my "Windows nVidia setup" (same hardware, same GC, same screen) ...

XBMX stay in 1280x720 @ 50Hz ... Sad

Does anybody have succesfully set his XBMC to 1280x720@48Hz ? ... Eek

Try doubling pixel clock in modeline :
ModeLine "1280x720_48Hz" 116.10 1280 1328 1456 1632 720 721 724 741 -hsync +vsync
Worked for me Smile
ynwa
Reply
#5
bobo1on1 Wrote:Add this to the screen section of your xorg.conf:

Code:
Option "DynamicTwinView"     "False"
Option "FlatPanelProperties" "Scaling = Native"

It's working !!! Big Grin ...

Many big-thanks to you !

[Edit] I need more tests, but it's damn smooth ... yet better than same system under Windows ... really great !
Reply
#6
-- solved --
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