Looking glass launch issues

Operating Systems & Open Source Looking Glass
1

Hi all,

I appreciate you all’s time. I will try to be as descriptive and concise as possible… missing information is due to my own ignorance, so feel free to enlighten and I will do my best to provide what is requested.

Configuration:
VM:

  • Windows 10 Pro

Client:

  • Linux Mint 21.2LTS

CPU:

  • Threadripper pro 3955wx

GPU:

  • Client: NVIDIA Quadro RTX 5000
  • Passthrough: AMD Radeon pro 5700 w/ headless dongle in usb-c port

Looking glass version:

  • B6

Issue:
Upon executing ‘looking-glass-client’ I am getting the following output:

looking-glass-client
[I] 6238218042 main.c:1785 | main | Looking Glass (B6)
[I] 6238218064 main.c:1786 | main | Locking Method: Atomic
[I] 6238236782 cpuinfo.c:37 | lgDebugCPU | CPU Model: AMD Ryzen Threadripper PRO 3955WX 16-Cores
[I] 6238236804 cpuinfo.c:38 | lgDebugCPU | CPU: 1 sockets, 16 cores, 32 threads
[I] 6238248410 main.c:1162 | lg_run | Using font: /usr/share/fonts/truetype/dejavu/DejaVuSansMono.ttf
[I] 6238248716 ivshmem.c:128 | ivshmemOpenDev | KVMFR Device : /dev/shm/looking-glass
[I] 6238253825 audio.c:159 | audio_init | Using AudioDev: PipeWire
[I] 6238253850 ps.c:245 | purespice_connect | Connecting to socket 127.0.0.1:5900
[I] 6238270387 rsa.c:178 | rsa_encryptPassword | Using Nettle
[I] 6238271376 ps.c:268 | purespice_connect | Connected
[I] 6238271467 agent.c:103 | agent_connect | Connected to the spice guest agent
[I] 6238271491 channel_main.c:167 | onMessage_mainName | Guest name: win10Workstation
[I] 6238271526 channel_main.c:183 | onMessage_mainUUID | Guest UUID: 77076829-7312-4208-88f0-9b67a2d4bdb6
[I] 6238281516 ps.c:644 | ps_connectChannel | RECORD channel connected
[I] 6238293560 ps.c:644 | ps_connectChannel | PLAYBACK channel connected
[I] 6238304876 ps.c:644 | ps_connectChannel | INPUTS channel connected
[I] 6238304938 channel.c:312 | onMessage_notify | [notify] keyboard channel is insecure
[I] 6238305067 egl.c:267 | egl_initialize | Double buffering is off
[I] 6238305109 main.c:1116 | tryRenderer | Using Renderer: EGL
[I] 6238307339 x11.c:230 | x11CheckEWMHSupport | EWMH-complient window manager detected: Mutter (Muffin)
[I] 6238307615 x11.c:463 | x11Init | X11 XInput 2.0 in use
[I] 6238321327 x11.c:1433 | x11GetEGLDisplay | Using eglGetPlatformDisplayEXT
[I] 6238339144 egl.c:745 | egl_renderStartup | Multisampling enabled, max samples: 4
[I] 6238437540 egl.c:828 | egl_renderStartup | Single buffer mode
[I] 6238520550 egl.c:855 | egl_renderStartup | EGL : 1.5
[I] 6238520589 egl.c:856 | egl_renderStartup | Vendor : NVIDIA Corporation
[I] 6238520652 egl.c:857 | egl_renderStartup | Renderer: Quadro RTX 5000/PCIe/SSE2
[I] 6238520715 egl.c:858 | egl_renderStartup | Version : OpenGL ES 3.2 NVIDIA 535.113.01
[I] 6238520780 egl.c:859 | egl_renderStartup | EGL APIs: OpenGL_ES OpenGL
[I] 6238520886 egl.c:930 | egl_renderStartup | Debug messages disabled, enable with egl:debug=true
[I] 6238555086 eglutil.c:35 | swapWithDamageInit | Using EGL_KHR_swap_buffers_with_damage
[I] 6238735634 main.c:1467 | lg_run | ================================================================================
[I] 6238735674 main.c:1468 | lg_run | The host application seems to not be running
[I] 6238735713 main.c:1469 | lg_run | Waiting for the host application to start…
[I] 6239747215 ps.c:644 | ps_connectChannel | DISPLAY channel connected
[I] 6239759199 ps.c:644 | ps_connectChannel | CURSOR channel connected
[I] 6239783538 main.c:896 | spice_surfaceCreate | Create SPICE surface: id: 0, size: 2560x1600
[I] 6267762233 main.c:1474 | lg_run | ================================================================================
[I] 6267762290 main.c:1488 | lg_run | Check the host log in your guest at %ProgramData%\Looking Glass (host)\looking-glass-host.txt
[I] 6267762338 main.c:1489 | lg_run | Continuing to wait…
[I] 6279453680 channel.c:258 | channel_internal_disconnect | CURSOR channel disconnected
[I] 6279454850 channel.c:258 | channel_internal_disconnect | DISPLAY channel disconnected
[I] 6279454903 channel.c:258 | channel_internal_disconnect | RECORD channel disconnected
[I] 6279454962 channel.c:258 | channel_internal_disconnect | PLAYBACK channel disconnected
[I] 6279455028 channel.c:258 | channel_internal_disconnect | INPUTS channel disconnected
[I] 6279455123 channel.c:258 | channel_internal_disconnect | MAIN channel disconnected
[I] 6279455175 ps.c:330 | purespice_disconnect | Disconnected

Looking-glass-log output:

[I] 39410332 time.c:85 | windowsSetTimerResolution | System timer resolution: 500.0 μs
[I] 39411233 app.c:771 | app_main | Looking Glass Host (B6)
[I] 39411964 cpuinfo.c:37 | lgDebugCPU | CPU Model: AMD Ryzen Threadripper PRO 3955WX 16-Cores
[I] 39412837 cpuinfo.c:38 | lgDebugCPU | CPU: 1 sockets, 8 cores, 16 threads
[I] 39414299 ivshmem.c:132 | ivshmemInit | IVSHMEM 0* on bus 0x6, device 0x1, function 0x0
[I] 39435304 app.c:788 | app_main | IVSHMEM Size : 512 MiB
[I] 39435642 app.c:789 | app_main | IVSHMEM Address : 0x2CE0000
[I] 39435969 app.c:790 | app_main | Max Pointer Size : 1024 KiB
[I] 39436288 app.c:791 | app_main | KVMFR Version : 19
[I] 39436599 app.c:809 | app_main | Trying : DXGI
[I] 39439174 dxgi.c:319 | dxgi_init | Not using unsupported adapter: Microsoft Basic Render Driver
[I] 39440096 dxgi.c:319 | dxgi_init | Not using unsupported adapter: Microsoft Basic Render Driver
[E] 39440977 dxgi.c:384 | dxgi_init | Failed to locate a valid output device
[I] 39441730 app.c:809 | app_main | Trying : NVFBC
39442953 [E] wrapper.cpp:61 | NvFBCInit | Failed to load NvFBC64.dll: 0x0000007e (The specified module could not be found.)
[E] 39443954 app.c:829 | app_main | Failed to find a supported capture interface
[I] 39461715 app.c:982 | app_main | Host application exited

looking-glass-host-service output:

[2023-10-29 16:08:41] Startup
[2023-10-29 16:08:41] Host application exited with code 0x40
[2023-10-29 16:08:41] Host application failed to start 1 times, waiting 1000 ms…
[2023-10-29 16:08:43] Host application exited with code 0x40
[2023-10-29 16:08:43] Host application failed to start 2 times, waiting 2000 ms…
[2023-10-29 16:08:45] Host application exited with code 0x40
[2023-10-29 16:08:45] Host application failed to start 3 times, waiting 4000 ms…
[2023-10-29 16:08:49] Host application exited with code 0x40
[2023-10-29 16:08:49] Host application failed to start 4 times, waiting 8000 ms…
[2023-10-29 16:08:57] Host application exited with code 0x40
[2023-10-29 16:08:57] Host application failed to start 5 times, waiting 16000 ms…
[2023-10-29 16:09:13] Host application exited with code 0x40
[2023-10-29 16:09:13] Host application failed to start 5 times; will not restart
[2023-10-29 16:09:13] Finished

Thank you!
WM

2

The amd driver is giving a code 43 within the windows VM.

Double checked isolation and got the following:
lspci -k output:

63:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Navi 10 [Radeon Pro W5700]
Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Navi 10 [Radeon Pro W5700]
Kernel driver in use: vfio-pci
Kernel modules: amdgpu
63:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Navi 10 HDMI Audio
Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Navi 10 HDMI Audio
Kernel driver in use: vfio-pci
Kernel modules: snd_hda_intel

I am not sure what to change in order to force the driver to work… I assume that the issue is either within the VM, or there is some sort of quirk with my setup…?

3

LG can’t find a working GPU driver to connect to. This is usually because of a failed GPU driver which seems to be the issue on your next post.

4

Please note that LG requisite requires a fully operational VM with a functioning GPU passthrough. This forum is limited to assisting users with LG specific issues. You might want to seek assistance in the VFIO forum or VFIO Discord server.

5

Thank you for the info!