undefined | Better HN

0 pointsReelin7y ago0 comments

How does one do this? On my desktop I currently use the ddccontrol and gddccontrol packages, but it would be awesome if the backlight slider existed the same as on my laptop.

0 comments

1 comments · 1 top-level

garaetjjte7y ago

There is simple driver: https://lore.kernel.org/patchwork/patch/753233/

As noted in discussion, Luminance VCD while worked for my monitors, backlight level 0x6B or legacy 0x13 would be better choice.

It then can be used by instantiating it at proper I²C monitor bus, e.g.:

    insmod ddcci_bl.ko
    modprobe i2c-dev
    echo ddcci_bl 0x37 > /sys/bus/i2c/devices/i2c-2/new_device

(oh, and it now over 2 years and I still haven't got time to integrate it with DRM display hotplug so it could be upstreamed :(

j / k navigate · click thread line to collapse