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by xuukiworld
Sun Jan 27, 2019 10:07 pm
Forum: Official Foundation Display
Topic: rpi-backlight: Control over display brightness and power
Replies: 25
Views: 15278

Re: rpi-backlight: Control over display brightness and power

its says ls: cannot access '/sys/class/backlight/rpi_backlight' No such file or directory
by xuukiworld
Sun Jan 27, 2019 8:35 pm
Forum: Official Foundation Display
Topic: rpi-backlight: Control over display brightness and power
Replies: 25
Views: 15278

Re: rpi-backlight: Control over display brightness and power

using $sudo rpi-backlight down
still unfortunately says :
ERROR: '/sys/class/backlight/rpi_backlight/bl_power' does not exist/insufficient permissions.

if there anything else I could try ?
by xuukiworld
Sat Jan 26, 2019 3:27 am
Forum: Official Foundation Display
Topic: rpi-backlight: Control over display brightness and power
Replies: 25
Views: 15278

Re: rpi-backlight: Control over display brightness and power

when I use the command $rpi-backlight down

the terminal says:

ERROR: '/sys/class/backlight/rpi_backlight/bl_power' does not exist/insufficient permissions.

What do I need to do next many thanks!

J

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