Accessing the Debug LEDs on Dell OptiPlexes

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Dell OptiPlex machines have debug LEDs on the front panel that say 1-2-3-4.  How can they be accessed from Linux/Ubuntu?  Perhaps via ACPI commands?

HACKER 3000

Posted 2019-02-17T13:36:15.053

Reputation: 1

Can't tell for Dell, but on my thinkpad I can act on LEDs by writing to /sys/devices/platform/thinkpad_acpi/leds/tpacpi::kbd_backlight/brightness, for instance echo 3 >/sys/devices/platform/thinkpad_acpi/leds/tpacpi::kbd_backlight/brightness. You may have a similiar capability in your Dell. – xenoid – 2019-02-17T17:58:12.847

nope nothing there – HACKER 3000 – 2019-02-23T10:02:38.307

No answers

Asked: 2019-02-17T13:36:15.053

Viewed: 16 times

Active: 2019-02-17T17:54:40.553