quadbuffer stereo

[Deucher, Alexander]

[Public]

Quadbuffer stereo is not supported on Linux.

Alex

From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of adblover
Sent: Monday, June 24, 2024 6:53 AM
To: intel-gfx at lists.freedesktop.org; amd-gfx at lists.freedesktop.org
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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