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Explode the Pi 5 documentation all over the place #3522

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Feb 19, 2024
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3 changes: 3 additions & 0 deletions documentation/asciidoc/accessories/display/display_intro.adoc
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Expand Up @@ -80,10 +80,13 @@ image::images/pi_plugs.png[Illustration of Raspberry Pi headers, width="40%"]

Next, connect the other end of the black wire to the GND pin on the display and the other end of the red wire to the 5V pin on the display. Once all the connections are made, you should see the Touch Display turn on the next time you turn on your Raspberry Pi.

WARNING: The Raspberry Pi 5 does not support automatic display configuration. To attach a display to the `CAM/DISP 1` connector, add `dtoverlay=vc4-kms-dsi-7inch` to `/boot/firmware/config.txt`. To attach a display to the `CAM/DISP 0` connector, add `dtoverlay=vc4-kms-dsi-7inch,dsi0`. Reboot with `sudo reboot` to load the new configuration.

The other three pins on the Touch Display are used to connect the display to an original Raspberry Pi 1 Model A or B. Refer to our documentation on xref:display.adoc#legacy-support[legacy support] for more information.

NOTE: To identify an original Raspberry Pi, check the GPIO header connector. Only the original model has a 26-pin GPIO header connector; subsequent models have 40 pins.


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Is this newline serving a purpose, or is it just some cruft that's found it's way in?

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Cruft probably. It should affect the rendered output.

==== Using a micro USB supply

If you don't want to use a Raspberry Pi to provide power to the Touch Display, you can use a micro USB power supply instead. We recommend using the https://www.raspberrypi.com/products/micro-usb-power-supply/[Raspberry Pi 12.5W power supply] to make sure the display runs as intended.
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Expand Up @@ -353,7 +353,7 @@ Hitting the temperature limit is not harmful to the SoC, but it will cause the C

When the core temperature is between 80°C and 85°C, the ARM cores will be throttled back. If the temperature exceeds 85°C, the ARM cores and the GPU will be throttled back.

For the Raspberry Pi 3 Model B+, the PCB technology has been changed to provide better heat dissipation and increased thermal mass. In addition, a soft temperature limit has been introduced, with the goal of maximising the time for which a device can "sprint" before reaching the hard limit at 85°C. When the soft limit is reached, the clock speed is reduced from 1.4GHz to 1.2GHz, and the operating voltage is reduced slightly. This reduces the rate of temperature increase: we trade a short period at 1.4GHz for a longer period at 1.2GHz. By default, the soft limit is 60°C. This can be changed via the `temp_soft_limit` setting in config.txt.
For the Raspberry Pi 3 Model B+, the PCB technology has been changed to provide better heat dissipation and increased thermal mass. In addition, a soft temperature limit has been introduced, with the goal of maximising the time for which a device can "sprint" before reaching the hard limit at 85°C. When the soft limit is reached, the clock speed is reduced from 1.4GHz to 1.2GHz, and the operating voltage is reduced slightly. This reduces the rate of temperature increase: we trade a short period at 1.4GHz for a longer period at 1.2GHz. By default, the soft limit is 60°C. This can be changed via the `temp_soft_limit` setting in `config.txt`.
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I was surprised to see this in here, after the commit message referred to Pi5, but the change is certainly an improvement.

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If you look, the change here was Nate added quote marks around the config.txt file to make the filename monopaced. The text was already there. Shouldn't really have been in this PR!

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Yes - that's why I was surprised!


=== Monitoring voltage

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2 changes: 1 addition & 1 deletion documentation/asciidoc/computers/configuration/uart.adoc
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Expand Up @@ -211,7 +211,7 @@ By default, the primary UART is assigned to the Linux console. If you wish to us
* Select option P6 - Serial Port
* At the prompt `Would you like a login shell to be accessible over serial?`, answer 'No'
* At the prompt `Would you like the serial port hardware to be enabled?`, answer 'Yes'
* Exit raspi-config and reboot the Raspberry Pi for changes to take effect
* Exit `raspi-config` and reboot the Raspberry Pi for changes to take effect

=== Enabling early console for Linux

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