Nvidia OpenGL stereo not working in openSUSE 15.3 Leap

I installed openSUSE 15.3 Leap on a Lenovo ThinkStation S30 with a NVIDIA Quadro K600 and Asus VG278HR display (DL-DVI connection). Upon installing the NVIDIA driver 470.57.02 using YaST, I edited the corresponding configuration file at /etc/X11/xorg.conf.d/50-screen.conf, which reads

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "Stereo" "10"
    Option         "UBB" "1"
    Option         "nvidiaXineramaInfoOrder" "DFP-0"
    Option         "metamodes" "nvidia-auto-select +0+0"
    Option         "SLI" "Off"
    Option         "MultiGPU" "Off"
    Option         "BaseMosaic" "off"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

The 3D light on the built in IR emitter of the display is on, but switching on 3D display mode does not work (using glxgears or specialized applications - PyMOL & COOT). Any help is MUCH appreciated!

Pedro

PS Here are the edited contents of /var/log/Xorg.0.log

    17.537] Current Operating System: Linux friedel 5.3.18-59.16-default #1 SMP Thu Jul 15 11:28:57 UTC 2021 (0b62bdb) x86_64
    17.537] Current version of pixman: 0.34.0
    17.538] (==) Log file: "/var/log/Xorg.0.log", Time: Tue Aug  3 14:31:14 2021
    17.539] (==) Using config directory: "/etc/X11/xorg.conf.d"
    17.539] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
    17.539] (==) No Layout section.  Using the first Screen section.
    17.539] (**) |-->Screen "Screen0" (0)
    17.539] (**) |   |-->Monitor "Monitor0"
    17.539] (**) |   |-->Device "Device0"
    17.540] (==) Automatically adding devices
    17.540] (==) Automatically enabling devices
    17.540] (==) Automatically adding GPU devices
    17.540] (==) Max clients allowed: 256, resource mask: 0x1fffff
    17.544] (WW) The directory "/usr/share/fonts/misc/sgi" does not exist.
    17.544]    Entry deleted from font path.
    17.544] (==) ModulePath set to "/usr/lib64/xorg/modules"
    17.544] (WW) Ignoring unrecognized extension "XFree86-DGA"
    17.544] (II) The server relies on udev to provide the list of input devices.
        If no devices become available, reconfigure udev or disable AutoAddDevices.
    17.544] (II) Loader magic: 0x565554bf7d20
    17.544] (II) Module ABI versions:
    17.545] (++) using VT number 7
    17.545] (II) systemd-logind: logind integration requires -keeptty and -keeptty was not provided, disabling logind integration
    17.546] (II) xfree86: Adding drm device (/dev/dri/card0)
    17.554] (--) PCI:*(3@0:0:0) 10de:0ffa:10de:094b rev 161, Mem @ 0xfa000000/16777216, 0xe0000000/268435456, 0xf0000000/33554432, I/O @ 0x0000e000/128, BIOS @ 0x????????/131072
    17.554] (II) LoadModule: "glx"
    17.554] (II) Loading /usr/lib64/xorg/modules/extensions/libglx.so
    17.562] (II) Module glx: vendor="X.Org Foundation"
    17.562]    compiled for 1.20.3, module version = 1.0.0
    17.562]    ABI class: X.Org Server Extension, version 10.0
    17.562] (II) LoadModule: "nvidia"
    17.562] (II) Loading /usr/lib64/xorg/modules/drivers/nvidia_drv.so
    17.577] (II) Module nvidia: vendor="NVIDIA Corporation"
    17.577]    compiled for 1.6.99.901, module version = 1.0.0
    17.577]    Module class: X.Org Video Driver
    17.577] (II) NVIDIA dlloader X Driver  470.57.02  Tue Jul 13 16:13:51 UTC 2021
    17.577] (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
    17.706] (II) Loading sub module "fb"
    17.706] (II) LoadModule: "fb"
    17.707] (II) Loading /usr/lib64/xorg/modules/libfb.so
    17.708] (II) Module fb: vendor="X.Org Foundation"
    17.708]    compiled for 1.20.3, module version = 1.0.0
    17.708]    ABI class: X.Org ANSI C Emulation, version 0.4
    17.708] (II) Loading sub module "wfb"
    17.708] (II) LoadModule: "wfb"
    17.708] (II) Loading /usr/lib64/xorg/modules/libwfb.so
    17.709] (II) Module wfb: vendor="X.Org Foundation"
    17.709]    compiled for 1.20.3, module version = 1.0.0
    17.709]    ABI class: X.Org ANSI C Emulation, version 0.4
    17.709] (II) Loading sub module "ramdac"
    17.709] (II) LoadModule: "ramdac"
    17.709] (II) Module "ramdac" already built-in
    17.710] (**) NVIDIA(0): Depth 24, (--) framebuffer bpp 32
    17.710] (==) NVIDIA(0): RGB weight 888
    17.710] (==) NVIDIA(0): Default visual is TrueColor
    17.710] (==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
    17.710] (**) NVIDIA(0): Option "UBB" "1"
    17.710] (**) NVIDIA(0): Option "Stereo" "10"
    17.710] (**) NVIDIA(0): Option "nvidiaXineramaInfoOrder" "DFP-0"
    17.710] (**) NVIDIA(0): Option "SLI" "Off"
    17.710] (**) NVIDIA(0): Option "MultiGPU" "Off"
    17.710] (**) NVIDIA(0): Option "BaseMosaic" "off"
    17.710] (**) NVIDIA(0): USB IR emitter stereo requested
    17.710] (**) NVIDIA(0): NVIDIA SLI disabled.
    17.710] (**) NVIDIA(0): NVIDIA Multi-GPU disabled.
    17.710] (**) NVIDIA(0): Option "MetaModes" "nvidia-auto-select +0+0"
    17.710] (**) NVIDIA(0): Enabling 2D acceleration
    17.710] (II) Loading sub module "glxserver_nvidia"
    17.710] (II) LoadModule: "glxserver_nvidia"
    17.710] (II) Loading /usr/lib64/xorg/modules/extensions/libglxserver_nvidia.so
    17.813] (II) Module glxserver_nvidia: vendor="NVIDIA Corporation"
    17.813]    compiled for 1.6.99.901, module version = 1.0.0
    17.813]    Module class: X.Org Server Extension
    17.813] (II) NVIDIA GLX Module  470.57.02  Tue Jul 13 16:10:58 UTC 2021
    17.813] (II) NVIDIA: The X server supports PRIME Render Offload.
    17.814] (--) NVIDIA(0): Valid display device(s) on GPU-0 at PCI:3:0:0
    17.814] (--) NVIDIA(0):     CRT-0
    17.814] (--) NVIDIA(0):     DFP-0 (boot)
    17.814] (--) NVIDIA(0):     DFP-1
    17.814] (--) NVIDIA(0):     DFP-2
    17.815] (II) NVIDIA(0): NVIDIA GPU Quadro K600 (GK107GL) at PCI:3:0:0 (GPU-0)
    17.815] (--) NVIDIA(0): Memory: 1048576 kBytes
    17.815] (--) NVIDIA(0): VideoBIOS: 80.07.c5.00.01
    17.815] (II) NVIDIA(0): Detected PCI Express Link width: 16X
    17.831] (--) NVIDIA(GPU-0): CRT-0: disconnected
    17.831] (--) NVIDIA(GPU-0): CRT-0: 400.0 MHz maximum pixel clock
    17.831] (--) NVIDIA(GPU-0): 
    17.865] (--) NVIDIA(GPU-0): Ancor Communications Inc ASUS VG278HR (DFP-0): connected
    17.865] (--) NVIDIA(GPU-0): Ancor Communications Inc ASUS VG278HR (DFP-0): Internal TMDS
    17.865] (--) NVIDIA(GPU-0): Ancor Communications Inc ASUS VG278HR (DFP-0): 330.0 MHz maximum pixel clock
    17.865] (--) NVIDIA(GPU-0): Ancor Communications Inc ASUS VG278HR (DFP-0): supports NVIDIA 3D Vision stereo.
    17.865] (--) NVIDIA(GPU-0): 
    17.865] (--) NVIDIA(GPU-0): DFP-1: disconnected
    17.865] (--) NVIDIA(GPU-0): DFP-1: Internal TMDS
    17.865] (--) NVIDIA(GPU-0): DFP-1: 165.0 MHz maximum pixel clock
    17.865] (--) NVIDIA(GPU-0): 
    17.865] (--) NVIDIA(GPU-0): DFP-2: disconnected
    17.865] (--) NVIDIA(GPU-0): DFP-2: Internal DisplayPort
    17.865] (--) NVIDIA(GPU-0): DFP-2: 960.0 MHz maximum pixel clock
    17.865] (--) NVIDIA(GPU-0): 
    17.866] (II) NVIDIA(0): Validated MetaModes:
    17.866] (II) NVIDIA(0):     "nvidia-auto-select+0+0"
    17.866] (II) NVIDIA(0): Virtual screen size determined to be 1920 x 1080
    17.869] (--) NVIDIA(0): DPI set to (81, 80); computed from "UseEdidDpi" X config
    17.869] (--) NVIDIA(0):     option
    19.625] (II) NVIDIA(0): Setting mode "nvidia-auto-select+0+0"
    19.985] (==) NVIDIA(0): Disabling shared memory pixmaps
    19.985] (==) NVIDIA(0): Backing store enabled
    19.985] (==) NVIDIA(0): Silken mouse enabled
    19.985] (**) NVIDIA(0): DPMS enabled
    19.985] (II) Loading sub module "dri2"
    19.985] (II) LoadModule: "dri2"
    19.985] (II) Module "dri2" already built-in
    19.985] (II) NVIDIA(0): [DRI2] Setup complete
    19.985] (II) NVIDIA(0): [DRI2]   VDPAU driver: nvidia
    19.985] (II) Initializing extension Generic Event Extension
    19.985] (II) Initializing extension SHAPE
    19.986] (II) Initializing extension MIT-SHM
    19.986] (II) Initializing extension XInputExtension
    19.986] (II) Initializing extension XTEST
    19.986] (II) Initializing extension BIG-REQUESTS
    19.986] (II) Initializing extension SYNC
    19.986] (II) Initializing extension XKEYBOARD
    19.986] (II) Initializing extension XC-MISC
    19.986] (II) Initializing extension SECURITY
    19.986] (II) Initializing extension XFIXES
    19.986] (II) Initializing extension RENDER
    19.986] (II) Initializing extension RANDR
    19.986] (II) Initializing extension COMPOSITE
    19.987] (II) Initializing extension DAMAGE
    19.987] (II) Initializing extension MIT-SCREEN-SAVER
    19.987] (II) Initializing extension DOUBLE-BUFFER
    19.987] (II) Initializing extension RECORD
    19.987] (II) Initializing extension DPMS
    19.987] (II) Initializing extension Present
    19.987] (II) Initializing extension DRI3
    19.987] (II) Initializing extension X-Resource
    19.987] (II) Initializing extension XVideo
    19.987] (II) Initializing extension XVideo-MotionCompensation
    19.987] (II) Initializing extension GLX
    19.987] (II) Initializing extension GLX
    19.987] (II) Indirect GLX disabled.
    19.987] (II) GLX: Another vendor is already registered for screen 0
    19.987] (II) Initializing extension XFree86-VidModeExtension
    19.987] (II) Initializing extension XFree86-DGA
    19.987] (II) Initializing extension XFree86-DRI
    19.987] (II) Initializing extension DRI2
    19.987] (II) Initializing extension NV-GLX
    19.988] (II) Initializing extension NV-CONTROL
    19.988] (II) Initializing extension XINERAMA
    51.649] (--) NVIDIA(GPU-0): Ancor Communications Inc ASUS VG278HR (DFP-0): connected
    51.649] (--) NVIDIA(GPU-0): Ancor Communications Inc ASUS VG278HR (DFP-0): Internal TMDS
    51.649] (--) NVIDIA(GPU-0): Ancor Communications Inc ASUS VG278HR (DFP-0): 330.0 MHz maximum pixel clock
    51.649] (--) NVIDIA(GPU-0): Ancor Communications Inc ASUS VG278HR (DFP-0): supports NVIDIA 3D Vision stereo.

RTFM: 3D for monitor works only with HDMI input.
Possibly it will work with DP -> HDMI adapter.
DL DVI is not needed here.

That is not correct: the exact same hardware worked until 2 days ago, displaying 3D, under CentOS8. I have 4 other machines (CentOS7/8 and Ubuntu MATE 16.04 with NVIDIA Quadro K600/K620/K4000 graphics), all displaying 3D and all using DL DVI links…