6. Known Issues

1. Enabling the primary plane on the Video Mixer by default results in a bandwidth utilization of 2GB. A patch is applied to disable the mixer primary plane by default. To enable/disable the primary plane through module_param and devmem use the following commands. To render a test pattern on the display using a utility like modetest, the primary plane should be enabled.

   • Enable:

   echo Y > /sys/module/xlnx_mixer/parameters/mixer_primary_enable
   

   • Disable:

   devmem 0xa0070040 32 0x0
   echo N > /sys/module/xlnx_mixer/parameters/mixer_primary_enable
   

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