NixOS on ARM/Raspberry Pi: Difference between revisions
imported>Samueldr reviews binary cache bit as it was armv7l only, which is not universal across pis! |
imported>Samueldr m Adds a note about avoid_warnings=1 to stop the RPi wrecking the display |
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* Random hangs | * Random hangs | ||
This problem is a hard problem. It is caused by the Raspberry Pi warning about power issues, but the current drivers (as of | |||
Linux 4.14) have a hard time dealing with it properly. If the power supply is rated properly AND the cable is not incurring too much power losses, it may be required to disable the lightning bolt indicator so the display driver isn't messed up.<ref>https://logs.nix.samueldr.com/nixos/2017-12-20#1513784657-1513784714;</ref> The lightning bolt indicator can be disabled by adding the line <code>avoid_warnings=1</code> in config.txt<ref>https://www.raspberrypi.org/documentation/configuration/config-txt/README.md</ref> | |||
{{note|A ''properly rated'' USB power supply, AND a good cable are necessary. The cable has to be short enough to not incur power losses through the length. Do note that thin and cheap cables usually have thinner copper wires, which in turn accentuates power losses. | |||
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