Hi Team,
Just one query.
Regarding brightness control.
On Internet I found the difference but not sure.
ACPI - Hardware based brightness control - so power consumption is reduced.
Xrandr - Software based. Might not reduce power consumption.
Please advise with your thoughts.
Brightness - ACPI or Xrandr - Which is good?
- Rava
- Contributor
- Posts: 5401
- Joined: 11 Jan 2011, 02:46
- Distribution: XFCE 5.01 x86_64 + 4.0 i586
- Location: Forests of Germany
Brightness - ACPI or Xrandr - Which is good?
With the internal notebook's or sub-notebook's display I either use the XFCE system tray slider (but I have no clue what XFCE uses in the background), or a xrandr based script.
At least all external monitors I know and use only the monitor's own brightness control works.
Would be good to get exact findings on that. Does anyone know an article on the issue?
Cheers!
Yours Rava
Yours Rava
Brightness - ACPI or Xrandr - Which is good?
Hi Rava,
Here is what I found.
https://wiki.archlinux.org/title/backlight.
For me xbacklight not workiing in Desktop, only working in laptop.
Xrandr - working on both desktops and laptop, So I beleive it is software based brightness control ( not actually reducing the brightness, this increases the blackness on the display - this is what I read in one of the forum in internet, now not able to find that link).
Anyway, I have posted a simple bright changer app for laptops using xbacklight and acpi.
This one uses yad program included in the package.
Here is what I found.
https://wiki.archlinux.org/title/backlight.
For me xbacklight not workiing in Desktop, only working in laptop.
Xrandr - working on both desktops and laptop, So I beleive it is software based brightness control ( not actually reducing the brightness, this increases the blackness on the display - this is what I read in one of the forum in internet, now not able to find that link).
Anyway, I have posted a simple bright changer app for laptops using xbacklight and acpi.
This one uses yad program included in the package.