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  1. Qt
  2. QTBUG-102362

EGLFS/KMS: Support mirroring on 2 separate DRM devices

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      Description

      The customer's hardware contains 2 separate DRM devices. They would like the ability to show their application GUI on both devices (screen mirroring).

      This is the output of the drmdevice command:

      --- Checking the number of DRM device available ---
      --- Devices reported 2 ---
      --- Retrieving devices information (PCI device revision is ignored) ---
      device[0]
      +-> available_nodes 0x01
      +-> nodes
      | +-> nodes[0] /dev/dri/card1
      +-> bustype 0002
      | +-> platform
      | +-> fullname /lcdif@30320000
      +-> deviceinfo
      +-> platform
      +-> compatible
      fsl,imx8mq-lcdif
      fsl,imx28-lcdif
      
      --- Opening device node /dev/dri/card1 ---
      --- Retrieving device info, for node /dev/dri/card1 ---
      device[0]
      +-> available_nodes 0x01
      +-> nodes
      | +-> nodes[0] /dev/dri/card1
      +-> bustype 0002
      | +-> platform
      | +-> fullname /lcdif@30320000
      +-> deviceinfo
      +-> platform
      +-> compatible
      fsl,imx8mq-lcdif
      fsl,imx28-lcdif
      
      device[1]
      +-> available_nodes 0x01
      +-> nodes
      | +-> nodes[0] /dev/dri/card0
      +-> bustype 0002
      | +-> platform
      | +-> fullname /display-subsystem
      +-> deviceinfo
      +-> platform
      +-> compatible
      fsl,imx-display-subsystem
      
      --- Opening device node /dev/dri/card0 ---
      --- Retrieving device info, for node /dev/dri/card0 ---
      device[1]
      +-> available_nodes 0x01
      +-> nodes
      | +-> nodes[0] /dev/dri/card0
      +-> bustype 0002
      | +-> platform
      | +-> fullname /display-subsystem
      +-> deviceinfo
      +-> platform
      +-> compatible
      fsl,imx-display-subsystem
      

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            Assignee:
            lagocs Laszlo Agocs
            Reporter:
            skoh-qt Sze Howe Koh
            Votes:
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            Watchers:
            2 Start watching this issue

              Dates

              Created:
              Updated:

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