RE: quadbuffer stereo

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Quadbuffer stereo is not supported on Linux.

 

Alex

 

From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of adblover
Sent: Monday, June 24, 2024 6:53 AM
To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx; amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Subject: quadbuffer stereo

 

I have no idea how to enable quadbuffer stereo (hdmi-3d) on linux for intel and amdgpu.

 

I tried using Option Stereo 12 with this result 

 (WW) AMDGPU(0): Option "Stereo" is not used

 

Hoping for solutions for both cards (intel arc,renoir)

 

thanks

----------------------------------------------

       

#xorg.conf that I used

Section "ServerLayout"

        Identifier     "xserver"
        Screen      0  "screen" 0 0
        InputDevice    "keyb"  "CoreKeyboard"
        InputDevice    "mouse"  "CorePointer"
EndSection
 
Section "ServerFlags"
        Option "AllowMouseOpenFail"  "true"  # allows the server to start up even if the mouse does not work
        #Option "DontVTSwitch"        "false" # allow switching between virtual terminal
        # Option "DontZoom"            "true"  # disable <Crtl><Alt><KP_+>/<KP_-> (resolution switching)
EndSection
 
Section "Files"
#        RgbPath      "/usr/X11R6/lib/X11/rgb"
#        ModulePath   "/usr/X11R6/lib/modules"
# More information:  http://ftp.x.org/pub/X11R7.0/doc/html/fonts.html
        FontPath     "/usr/share/fonts/X11/misc"
        FontPath     "/usr/share/fonts/X11/100dpi/:unscaled"
        FontPath     "/usr/share/fonts/X11/75dpi/:unscaled"
        FontPath     "/usr/share/fonts/X11/Type1"
        FontPath     "/usr/share/fonts/X11/100dpi"
        FontPath     "/usr/share/fonts/X11/75dpi"
        FontPath     "/usr/X11R6/lib/X11/fonts/misc:unscaled"
        FontPath     "/usr/X11R6/lib/X11/fonts/misc"
        FontPath     "/usr/X11R6/lib/X11/fonts/75dpi:unscaled"
        FontPath     "/usr/X11R6/lib/X11/fonts/75dpi"
        FontPath     "/usr/X11R6/lib/X11/fonts/100dpi:unscaled"
        FontPath     "/usr/X11R6/lib/X11/fonts/100dpi"
# True type and type1 fonts are also handled via xftlib, see /etc/X11/XftConfig!
        FontPath     "/usr/X11R6/lib/X11/fonts/Type1"
        FontPath     "/usr/share/fonts/ttf/western"
        FontPath     "/usr/share/fonts/ttf/decoratives"
        FontPath     "/usr/share/fonts/truetype/ttf-bitstream-vera"
        FontPath     "/usr/share/fonts/latex-ttf-fonts"
        FontPath     "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection
 
Section "Module"
        Load  "dbe"       # double buffer extension
        Load  "dri"       # direct rendering
        Load  "glx"       # 3D layer
       Load "amdgpu"
       Load "modesetting"
       Load "glamoregl"
        Load  "extmod"    # some commonly used server extensions (e.g. shape extension)
        Load  "record"    # recording extension
        Load  "evdev"     # generic input handling driver on Linux
        Load  "bitmap"    # bitmap fonts
         Load  "ddc"       # ddc probing of monitor
         Load  "freetype"  # font rendering
EndSection
 
Section "InputDevice"
        Identifier  "keyb"
        Option      "CoreKeyboard"
        Driver      "evdev"
        Option      "XkbRules"   "xorg"
        Option      "XkbModel"   "pc105"
        Option      "XkbLayout"  "de"
        #Option      "XkbOptions" "u"
EndSection
 
 
Section "InputDevice"
        Identifier  "mouse"
        Driver      "evdev"
        #Option      "Device" "/dev/input/mice"
        #Option          "ZAxisMapping"          "4 5"
        #Option          "Buttons"               "5"
        #Option          "SendCoreEvents"        "true"
 
EndSection
 
 
Section "Monitor"
        Identifier   "sony"
        Option       "DPMS"      "true"
        #HorizSync    31.0 - 61.0
        #VertRefresh  50.0 - 90.0
EndSection
 
Section "Device"
        Identifier  "card"
        Driver      "amdgpu"
       Option "Stereo" "12"
EndSection
 
Section "Screen"
        Identifier "screen"
        Device     "card"
        Monitor    "sony"
 
        SubSection "Display"
                Depth     24
                Modes "1920x1080"
        EndSubSection
        SubSection "Display"
                Depth     32
                Modes "1920x1080"
        EndSubSection
SubSection "Extensions"
       Option "Composite" "Disable"
EndSubSection
 
EndSection
 
# Make sure you have the relevant Debian packages on your system
# to be able to use DRI (libgl1-mesa-dri for example)
Section "DRI"
        Mode 0666
EndSection

 


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