SPRACX5 May   2021 DRA710 , DRA710 , DRA712 , DRA712 , DRA714 , DRA714 , DRA716 , DRA716 , DRA718 , DRA718 , DRA722 , DRA722 , DRA724 , DRA724 , DRA725 , DRA725 , DRA726 , DRA726 , DRA744 , DRA744 , DRA745 , DRA745 , DRA746 , DRA746 , DRA74P , DRA74P , DRA750 , DRA750 , DRA756 , DRA756 , DRA75P , DRA75P , DRA76P , DRA76P , DRA77P , DRA77P , DRA780 , DRA780 , DRA781 , DRA781 , DRA782 , DRA782 , DRA783 , DRA783 , DRA785 , DRA785 , DRA786 , DRA786 , DRA787 , DRA787 , DRA788 , DRA788 , DRA790 , DRA790 , DRA791 , DRA791 , DRA793 , DRA793 , DRA797 , DRA797 , TDA2EG-17 , TDA2EG-17 , TDA2HF , TDA2HF , TDA2HG , TDA2HG , TDA2HV , TDA2HV , TDA2LF , TDA2LF , TDA2P-ABZ , TDA2P-ABZ , TDA2P-ACD , TDA2P-ACD , TDA2SA , TDA2SA , TDA2SG , TDA2SG , TDA2SX , TDA2SX

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Standard DRM Framework
    2. 1.2 vDRM-Based Framework
  3. 2Display Content Based vDRM on Linux
  4. 3Multimedia Support Based vDRM on Linux
    1. 3.1 Gstreamer
    2. 3.2 viddec3test
    3. 3.3 modetest
    4. 3.4 kmscube
  5. 4Display Weston-Based Application
  6. 5Display EGL-Based Application
  7. 6Interactive Display Across PSDKLA and VISION-SDK
    1. 6.1 ALPHA Setting
    2. 6.2 ZORDER Setting: DISPC_xxx_ATTRIBUTES[26-27]
  8. 7Dual-Display Demo
  9. 8Build Linux Vision SDK File System
  10. 9References

3.3 modetest

  • The tool modetest provided by the libdrm library is useful to:
    • List all display capabilities: CRTCs, encoders and connectors (DSI, DPI, HDMI, ...), planes, modes, and so forth
    • Perform basic tests: display a test pattern, display 2 layers, perform a vsync test
    • Specify the video mode: resolution and refresh rate

For vDRM framework, you can run the following to see DRM related information for each card: 

root@dra7xx-evm# modetest -n /dev/dri/card1
root@dra7xx-evm# modetest -n /dev/dri/card1
root@dra7xx-evm# modetest -n /dev/dri/card2