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HDMI Mode
If the HDMI signal fails when playing a video, set the right HDMI Mode manually.
Check the current HDMI state:
$ tvservice -s
List of CEA supported modes:
$ tvservice –m CEA
List of DMT supported modes:
$ tvservice –m DMT
Choose the prefered mode, DMT work best with HDMI beamer and monitors:
(prefer) mode 85: 1280x720 @ 60Hz 16:9, clock:74MHz progressive
Open config file:
$ sudo nano /boot/config.txt
Change:
hdmi_group=2 hdmi_mode=85
Low level changes for DMT 640×480 60 Hz would be:
hdmi_group=2 hdmi_mode=4
If nothing helps set the HDMI save mode to try to boot with maximum hdmi compatibility. This is the same as the combination of: hdmi_force_hotplug=1, hdmi_ignore_edid=0xa5000080, config_hdmi_boost=4, hdmi_group=2, hdmi_mode=4, disable_overscan=0, overscan_left=24, overscan_right=24, overscan_top=24, overscan_bottom=24
hdmi_safe=1
Reboot:
$ sudo reboot