just by luck the queue "play catchup" happens to have a classic
scheduling issue. one screen always wins, the other always loses as we
play catch-up in the request queue so one is starved of "scheduling
slots" while the othe rgets them all. this fixes that by moving the
entire request queue into the thread work queue in one go so they all
get an equal chance. now botjh my desktop monitors dim smoothly on
idle like my laptop... smooooooooood
This adds ddc monitor control and glues it into the backlight system.
A result of this is now backlgiht control gadgets work screen by
screen and even on desktop monitors as well as on a laptop panel. If
you now put a backlight gadget on a shelf on each screen... it will
control THAT screen's backlight.
This requires libddcutil to be installed. That will require i2c
modules (i2c-dev specifically). This means that this is likely not
going to do anything useful on bsd's... unless libddcutil happens to
work there by chance.
so install ddcutil/libddcutil. ensure it's in ld.so.conf so setuid
root processes find it (as LD_LIBRARY_PATH won't help) and enjoy your
new funcky per-screen backlight controls... :)
@feature
Carsten Haitzler