overlays: Update the README

Replace the use of vcdbg with vclog, and correct the documentation URL.

See: https://github.com/raspberrypi/linux/issues/7093

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
This commit is contained in:
Phil Elwell
2025-10-17 13:37:41 +01:00
parent 20838eef01
commit f323b61bef

View File

@@ -5975,16 +5975,17 @@ Params: brightness Set the initial brightness for the LEDs. The
Troubleshooting
===============
If you are experiencing problems that you think are DT-related, enable DT
diagnostic output by adding this to /boot/config.txt:
If you are experiencing problems that you think are DT-related, first check for
error messages from the firmware by running:
sudo vclog -m
To see more details about the changes to the Device Tree, add the following to
/boot/firmware/config.txt:
dtdebug=on
and rebooting. Then run:
sudo vcdbg log msg
and look for relevant messages.
and reboot, then use vclog as above.
Further reading
===============
@@ -5992,4 +5993,4 @@ Further reading
This is only meant to be a quick introduction to the subject of Device Tree on
Raspberry Pi. There is a more complete explanation here:
http://www.raspberrypi.org/documentation/configuration/device-tree.md
https://www.raspberrypi.com/documentation/computers/configuration.html#device-trees-overlays-and-parameters