From https://coolinfographics.com/blog/2020/4/16/9-ways-to-focus-a-wandering-mind
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Category: Resources
Here on Day #24 of the #SocialDistance #StayHomeKeepSafe program is another tidbit of something I didn’t know
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Let’s do Tidbits to Pass The Time
WFH? Great, here is a tidbit
Today’s tidbit comes in the form an unwritten rule of English called Ablaut Reduplication. This is a simple rule to describe why “Tok Tik” sounds weird, but “Tik Tok” doesn’t.
There is the theory that the HDMI output of the Raspberry Pi is only initialized if a monitor/television is connected and powered up before a Raspberry Pi 3 is turned on.
Yet when I connect my Raspberry Pi 3 to a old Panasonic Plasma display the Raspberry Pi actually turns on the device and the screen activates every time.
Not so with the Vizio P series I just hung on the wall.
Aside: some of the Panasonic HDMI ports were damaged in a painting disaster…never use a 20lb weight to hold a tarp.
With the Vizio, whether the monitor is on or off and the correct HDMI port is selected or not, the Raspberry Pi 3 simply never brings up HDMI output.
Edit the /boot/config.txt file and uncomment these two lines
#hdmi_force_hotplug=1
#hdmi_drive=2
And the device works every time from every state. The first line is as it appears, the second activates HDMI and enables sound rather than DVI mode which does not.
I did like that the Vizio takes edits the HDMI connection in its table to Raspberry
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