The VideoLAN Forums

Posted: **03 Jan 2024 12:52**

Hi,

I try to get my waveshare display running with latest rasbian on my rpi5. Compilation works and everything is working on HDMI, but I don't have any idea how to get my display working.

Acc. to this https://forums.raspberrypi.com/viewtopi ... 8#p2170664, I have this 'config.txt' parts

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# Enable DRM VC4 V3D driver
dtoverlay=vc4-kms-v3d
max_framebuffers=2

# waveshare 1.3in - 240x240pixel - SKU19650
dtoverlay=mipi-dbi-spi,speed=32000000
dtparam=compatible=wavesku19650\0panel-mipi-dbi-spi
dtparam=write-only,cpha,cpol
dtparam=width=240,height=240,width-mm=23,height-mm=23
dtparam=reset-gpio=23,dc-gpio=25,backlight-gpio=24

I can see the console on the display, and if I start cvlc nothing happens on the display. HDMI is working well... I tried really much parameters, but everything fails. MPV is working, but want vlc...

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mcpat@rpi5:/opt/videos $ mpv --drm-connector=help
Available connectors for card 0 (/dev/dri/card2):
  SPI-1 (connected)

Available connectors for card 1 (/dev/dri/card1):
  HDMI-A-1 (disconnected)
  HDMI-A-2 (disconnected)

Available connectors for card 2 (/dev/dri/card0):
Cannot retrieve DRM resources: Operation not supported

and I get this output with 'drmdevice':

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root@rpi5:/opt/videos# drmdevice
--- Checking the number of DRM device available ---
--- Devices reported 3 ---
--- Retrieving devices information (PCI device revision is ignored) ---
device[0]
+-> available_nodes 0x01
+-> nodes
|   +-> nodes[0] /dev/dri/card2
+-> bustype 0002
|   +-> platform
|       +-> fullname    /axi/pcie@120000/rp1/spi@50000/panel@0
+-> deviceinfo
    +-> platform
        +-> compatible
                    wavesku19650
                    panel-mipi-dbi-spi

--- Opening device node /dev/dri/card2 ---
--- Retrieving device info, for node /dev/dri/card2 ---
device[0]
+-> available_nodes 0x01
+-> nodes
|   +-> nodes[0] /dev/dri/card2
+-> bustype 0002
|   +-> platform
|       +-> fullname    /axi/pcie@120000/rp1/spi@50000/panel@0
+-> deviceinfo
    +-> platform
        +-> compatible
                    wavesku19650
                    panel-mipi-dbi-spi

device[1]
+-> available_nodes 0x05
+-> nodes
|   +-> nodes[0] /dev/dri/card0
|   +-> nodes[2] /dev/dri/renderD128
+-> bustype 0002
|   +-> platform
|       +-> fullname    /axi/v3d@2000000
+-> deviceinfo
    +-> platform
        +-> compatible
                    brcm,2712-v3d

--- Opening device node /dev/dri/card0 ---
--- Retrieving device info, for node /dev/dri/card0 ---
device[1]
+-> available_nodes 0x05
+-> nodes
|   +-> nodes[0] /dev/dri/card0
|   +-> nodes[2] /dev/dri/renderD128
+-> bustype 0002
|   +-> platform
|       +-> fullname    /axi/v3d@2000000
+-> deviceinfo
    +-> platform
        +-> compatible
                    brcm,2712-v3d

--- Opening device node /dev/dri/renderD128 ---
--- Retrieving device info, for node /dev/dri/renderD128 ---
device[1]
+-> available_nodes 0x05
+-> nodes
|   +-> nodes[0] /dev/dri/card0
|   +-> nodes[2] /dev/dri/renderD128
+-> bustype 0002
|   +-> platform
|       +-> fullname    /axi/v3d@2000000
+-> deviceinfo
    +-> platform
        +-> compatible
                    brcm,2712-v3d

device[2]
+-> available_nodes 0x01
+-> nodes
|   +-> nodes[0] /dev/dri/card1
+-> bustype 0002
|   +-> platform
|       +-> fullname    /axi/gpu
+-> deviceinfo
    +-> platform
        +-> compatible
                    brcm,bcm2712-vc6

--- Opening device node /dev/dri/card1 ---
--- Retrieving device info, for node /dev/dri/card1 ---
device[2]
+-> available_nodes 0x01
+-> nodes
|   +-> nodes[0] /dev/dri/card1
+-> bustype 0002
|   +-> platform
|       +-> fullname    /axi/gpu
+-> deviceinfo
    +-> platform
        +-> compatible
                    brcm,bcm2712-vc6

If it helps, this is also working

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 /usr/bin/kmscube -D /dev/dri/card2

and 'kmsprint' shows

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root@rpi5:/opt/videos# kmsprint
Connector 0 (32) HDMI-A-1 (connected)
  Encoder 0 (31) TMDS
    Crtc 2 (88) 1920x1080@120.00 297.000 1920/88/44/148/+ 1080/4/5/36/+ 120 (120.00) D 16:9
      Plane 2 (78) fb-id: 301 (crtcs: 2) 0,0 1920x1080 -> 0,0 1920x1080 (XR24 AR24 AB24 XB24 RG16 BG16 AR15 XR15 RG24 BG24 YU16 YV16 YU24 YV24 YU12 YV12 NV12 NV21 NV16 NV61 P030 XR30 AR30 AB30 XB30 RGB8 BGR8 XR12 AR12 XB12 AB12 BX12 BA12 RX12 RA12)
        FB 301 1920x1080 RG16
Connector 1 (42) HDMI-A-2 (disconnected)
  Encoder 1 (41) TMDS

So, how can I show a video on SPI-1 without desktop (wayland) on rpi5?

Posted: **04 Jan 2024 17:26**

You need version 4.0 for DRM support. It should work automatically if there are no display servers, but you can also force it with

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vlc -Vdrm

Posted: **07 Jan 2024 14:14**

You need version 4.0 for DRM support. It should work automatically if there are no display servers, but you can also force it with
Code: Select all
vlc -Vdrm

I compiled vlc 4.0 but with same result. I am running Raspian in cli not with desktop.
'config.txt'

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# waveshare 1.3in - 240x240pixel - SKU19650
dtoverlay=mipi-dbi-spi,speed=32000000
dtparam=compatible=wavesku19650\0panel-mipi-dbi-spi
dtparam=write-only,cpha,cpol
dtparam=width=240,height=240,width-mm=23,height-mm=23
dtparam=reset-gpio=27,dc-gpio=25,backlight-gpio=18
#dtparam=reset-gpio=23,dc-gpio=25,backlight-gpio=24

# Enable DRM VC4 V3D driver
dtoverlay=vc4-kms-v3d,nohdmi
max_framebuffers=2

Additional infos:

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root@rpi5:/opt# drmdevice
--- Checking the number of DRM device available ---
--- Devices reported 3 ---
--- Retrieving devices information (PCI device revision is ignored) ---
device[0]
+-> available_nodes 0x01
+-> nodes
|   +-> nodes[0] /dev/dri/card2
+-> bustype 0002
|   +-> platform
|       +-> fullname    /axi/pcie@120000/rp1/spi@50000/panel@0
+-> deviceinfo
    +-> platform
        +-> compatible
                    wavesku19650
                    panel-mipi-dbi-spi

--- Opening device node /dev/dri/card2 ---
--- Retrieving device info, for node /dev/dri/card2 ---
device[0]
+-> available_nodes 0x01
+-> nodes
|   +-> nodes[0] /dev/dri/card2
+-> bustype 0002
|   +-> platform
|       +-> fullname    /axi/pcie@120000/rp1/spi@50000/panel@0
+-> deviceinfo
    +-> platform
        +-> compatible
                    wavesku19650
                    panel-mipi-dbi-spi

device[1]
+-> available_nodes 0x01
+-> nodes
|   +-> nodes[0] /dev/dri/card1
+-> bustype 0002
|   +-> platform
|       +-> fullname    /axi/gpu
+-> deviceinfo
    +-> platform
        +-> compatible
                    brcm,bcm2712-vc6

--- Opening device node /dev/dri/card1 ---
--- Retrieving device info, for node /dev/dri/card1 ---
device[1]
+-> available_nodes 0x01
+-> nodes
|   +-> nodes[0] /dev/dri/card1
+-> bustype 0002
|   +-> platform
|       +-> fullname    /axi/gpu
+-> deviceinfo
    +-> platform
        +-> compatible
                    brcm,bcm2712-vc6

device[2]
+-> available_nodes 0x05
+-> nodes
|   +-> nodes[0] /dev/dri/card0
|   +-> nodes[2] /dev/dri/renderD128
+-> bustype 0002
|   +-> platform
|       +-> fullname    /axi/v3d@2000000
+-> deviceinfo
    +-> platform
        +-> compatible
                    brcm,2712-v3d

--- Opening device node /dev/dri/card0 ---
--- Retrieving device info, for node /dev/dri/card0 ---
device[2]
+-> available_nodes 0x05
+-> nodes
|   +-> nodes[0] /dev/dri/card0
|   +-> nodes[2] /dev/dri/renderD128
+-> bustype 0002
|   +-> platform
|       +-> fullname    /axi/v3d@2000000
+-> deviceinfo
    +-> platform
        +-> compatible
                    brcm,2712-v3d

--- Opening device node /dev/dri/renderD128 ---
--- Retrieving device info, for node /dev/dri/renderD128 ---
device[2]
+-> available_nodes 0x05
+-> nodes
|   +-> nodes[0] /dev/dri/card0
|   +-> nodes[2] /dev/dri/renderD128
+-> bustype 0002
|   +-> platform
|       +-> fullname    /axi/v3d@2000000
+-> deviceinfo
    +-> platform
        +-> compatible
                    brcm,2712-v3d

And with working mpv:

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root@rpi5:/opt/videos#  mpv --drm-connector=help
Available connectors for card 0 (/dev/dri/card2):
  SPI-1 (connected)

Available connectors for card 1 (/dev/dri/card1):

Available connectors for card 2 (/dev/dri/card0):
Cannot retrieve DRM resources: Operation not supported

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root@rpi5:/opt/videos# mpv --no-audio  simpsons.mp4
 (+) Video --vid=1 (*) (h264 640x480 25.000fps)
     Audio --aid=1 --alang=deu (*) (aac 1ch 48000Hz)
[vo/gpu] VT_GETMODE failed: Inappropriate ioctl for device
[vo/gpu/opengl] Failed to set up VT switcher. Terminal switching will be unavailable.
VO: [gpu] 640x480 yuv420p
V: 00:05:28 / 00:22:15 (25%)

And VLC

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root@rpi5:/opt/videos# cvlc --no-audio simpsons.mp4
VLC media player 4.0.0-dev Otto Chriek (revision 4.0.0-dev-27260-g3b8438caad)
[000055560159fec0] vlcpulse audio output error: PulseAudio server connection failure: Connection refused
[00005556015cf7f0] main interface error: no suitable interface module
[00005556015e5f10] dummy interface: using the dummy interface module...
[00007fff5809a6f0] kms window error: Didn't get DRM resources
[00007fff810e53b8] xcb generic error: window not available
[00007fff810e5368] xcb generic error: window not available

RetroPie is also working on the display. So the main problem is VLC.

Posted: **08 Jan 2024 10:33**

Worked for me last time I tried (on different hardware) though.

If you are sure that this is a VLC problem, patches are welcome.

Posted: **08 Jan 2024 11:42**

Worked for me last time I tried (on others hardware) though.

If you are sure that this is a VLC problem, patches are welcome.

With the overlay "mipi-dbi-spi"? On Rpi's < 5 I used framebuffer copy and this was working on all displays. But with Rpi5 there are no legacy drivers anymore and fbcp also not possible anymore. With "mipi-dbi-spi" vlc is not running on display. If you can give me a hint were to search I can try to patch vlc and supply the patch too...

Posted: **08 Jan 2024 16:37**

The specific error normally means that the DRM driver does not support universal planes (the error comes from libdrm, not VLC). If so, then it's no wonder that KMS won't work. This is a driver issue from my standpoint.

Or what you need is a hardware-specific stuff, not the normal KMS/DRM support that VLC provides.

Posted: **08 Jan 2024 17:27**

I just tried with the original vlc delivered by apt-get

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Croot@rpi5:/opt/build/docs/drm-howto# cvlc --no-audio /opt/videos/simpsons.mp4
VLC media player 3.0.20 Vetinari (revision 3.0.20-0-g6f0d0ab126b)
[000055558aa17580] vlcpulse audio output error: PulseAudio server connection failure: Connection refused
[000055558acb1030] main interface error: no suitable interface module
[000055558a9ad560] main libvlc error: interface "globalhotkeys,none" initialization failed
[000055558acb1030] dummy interface: using the dummy interface module...
[h264_v4l2m2m @ 0x7ffed8c18f90] Could not find a valid device
[h264_v4l2m2m @ 0x7ffed8c18f90] can't configure decoder
[00007ffed8c03c50] avcodec decoder error: cannot start codec (h264_v4l2m2m)
[00007ffed4001b50] gles2 generic error: parent window not available
[00007ffed4001b50] xcb generic error: window not available
[00007ffed40013f0] mmal_xsplitter vout display: Try drm
[00007ffed4001b50] drm_vout generic: <<< OpenDrmVout: Fmt=I420
[00007ffed4001b50] drm_vout generic error: Failed to get xlease
[00007ffed4001b50] drm_vout generic error: Failed to find output <auto>: No such file or directory
[00007ffed40013f0] mmal_xsplitter vout display: Drm no go
[00007ffed40013f0] gles2 vout display error: parent window not available
[00007ffed40013f0] gl vout display error: parent window not available
[00007ffed40013f0] xcb vout display error: window not available
[00007ffed40013f0] xcb vout display error: window not available
[00007ffed40013f0] fb vout display error: cannot get terminal mode (Inappropriate ioctl for device)
[00007ffed40013f0] drm_vout vout display: <<< OpenDrmVout: Fmt=I420
[00007ffed40013f0] drm_vout vout display error: Failed to get xlease
[00007ffed40013f0] drm_vout vout display error: Failed to find output <auto>: No such file or directory

How to tell vlc to use /dev/dri/card2 (it's "SPI-1")?

Posted: **08 Jan 2024 18:10**

Eh, what's wrong with the command line help?

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vlc --kms-device=/dev/dri/card2

Posted: **09 Jan 2024 10:53**

Eh, what's wrong with the command line help?
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vlc --kms-device=/dev/dri/card2

Thank you for the hint, I was mainly testing with v3.0.20 (installed with apt-get), now with compiled 4.0.0 I get this output

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root@rpi5:/opt/videos# cvlc --kms-device=/dev/dri/card2 --no-audio simpsons.mp4 
VLC media player 4.0.0-dev Otto Chriek (revision 4.0.0-dev-27260-g3b8438caad)
[00005555f987dc60] vlcpulse audio output error: PulseAudio server connection failure: Connection refused
[00005555f98aff20] main interface error: no suitable interface module
[00005555f98acf70] dummy interface: using the dummy interface module...
[00007ffec8099c10] kms window: Updating list of connectors:
[00007ffec8099c10] kms window: Looping over 1 resources
[00007ffec8099c10] kms window: connector 0: SPI-1
[00007ffef0ed53b8] xcb generic error: window not available
[00007ffef0ed5368] xcb generic error: window not available
[00007ffec80f0f60] drm_display vout display error: DRM plane format error: Operation not supported
[00007ffec8046580] main video output error: video output display creation failed
[h264 @ 0x7ffedc218910] get_buffer() failed
[h264 @ 0x7ffedc218910] thread_get_buffer() failed
[h264 @ 0x7ffedc218910] decode_slice_header error
[h264 @ 0x7ffedc218910] no frame!
[00007ffec8099c10] kms window: Looping over 1 resources
[00007ffec8099c10] kms window: connector 0: SPI-1
[00007ffed60953b8] xcb generic error: window not available
[00007ffed6095368] xcb generic error: window not available
[00007ffec4048950] drm_display vout display error: DRM plane format error: Operation not supported
[00007ffec8046580] main video output error: video output display creation failed
[h264 @ 0x7ffedc3115e0] get_buffer() failed
[h264 @ 0x7ffedc3115e0] thread_get_buffer() failed
[h264 @ 0x7ffedc3115e0] decode_slice_header error
[h264 @ 0x7ffedc3115e0] no frame!

Posted: **09 Jan 2024 14:39**

That looks like a driver bug.

Posted: **09 Jan 2024 16:33**

sure? because "mpv" is working?!?! Even hw accelerated. Only with vlc I have this problems. Can you tell me where you expect the bug. Is it the "mipi-dbi-spi" with overlay? Or somewhere else?

Posted: **09 Jan 2024 19:56**

Maybe mpv has rPI-specific stuff. What do I know.

Point is that it does not look like your DRM driver is usable as a generic DRM output that full screen software could use in absence of X11 or Wayland

Posted: **10 Jan 2024 21:14**

"Fun" fact. Everything above is when I try in a ssh session, I attached a keyboard and started clvc and the video is shown on the display:

I used all for me known parameters, but cvlc doesn't respect the aspect ratio..

When I start mpv without any paramter with the attached keyboard, the aspect ratio is ok (mpv also works via ssh session!):

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