- This topic has 11 replies, 5 voices, and was last updated Aug 24-11:24 pm by ex_Koo.
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tlaloc77
The old laptop I use antiX on has developed the habit to go dark from time to time, as in, 10% or so screen brightness.
So I had the idea to put the buttons (FN)<F9> and (FN)<F10> to work but so far I found no way to do it on the installed system (antix-17).
The buttons also don’t work under any KNOPPIX I have (debian-based, tries to avoid systemd), not even the newest, not under the old Debian and some other old Debian-based distributions, but I found that they work under Artix OOTB and also -surprise- they work under the newest MX. But not the newest antiX-19b2. All of these booted from CD/DVD.
Now what? I noticed that the ones where these buttons work have systemd in it (not sure to what extend systemd is used on MX) but if that’s the only way to get it to work, I’m going to scream!
Help, please? ó_ò What can I do? The laptop is an HP EliteBook 8730 if that’s of use.
- This topic was modified 3 years, 9 months ago by tlaloc77.
My inxi -zv7, inxi -Fxs and inxi -r are here: https://www.antixforum.com/forums/topic/a-proper-hellp/#post-2981
ex_Koo
Do you have xbacklight install ? on antiX
tlaloc77
Do you have xbacklight install ? on antiX
Thank you!
I tried xbacklight some time ago and it failed. Then I found the reason for the failure on the Arch Wiki: It needs Intel graphics and my laptop has NVIDIA graphics. (Btw., I think I managed to set the backlight value by hand at some point by writing an integer value into some file but if the backlight is (nearly) off I can’t see what I type so that’s not a real option and I didn’t investigate that direction any further.)My actual state of belief is that these buttons are supported by means of the BIOS and all that would be needed is letting these keypresses through or forwarding them to the BIOS.
My inxi -zv7, inxi -Fxs and inxi -r are here: https://www.antixforum.com/forums/topic/a-proper-hellp/#post-2981
tlaloc77
An update – meanwhile I found some more distributions where these (FN)-Buttons work, one of them being Redcore, based on Gentoo and using OpenRC or sysv-init. So it’s not systemd.
The common factor seems to be LXQT.
So I tried to install LXQT on antiX, the installation succeded but then I was told that LXQT is not supported, I could not select it as a window manager.
What is needed to do this, or is it not possible at all?My inxi -zv7, inxi -Fxs and inxi -r are here: https://www.antixforum.com/forums/topic/a-proper-hellp/#post-2981
caprea
Hi tlaloc77, I can’t help you with lxqt,
but did you already try to add kernel-parameters to the GRUB_CMDLINE_LINUX-line in /etc/default/grub, likeacpi_osi=Linux acpi_backlight=vendor
on antiX ?
manyroads
I use a tool called ‘light’ not xbacklight in bspwm. Here are the keyboard shortcuts I use: XF86MonBrightnessUp light -A 10 –or— XF86MonBrightnessDown light -U 10
Details are here: https://github.com/haikarainen/light
I hope this helps.
Pax vobiscum,
Mark Rabideau - http://many-roads.com
"For every complex problem there is an answer that is clear, simple, and wrong." H. L. Mencken
dwm & i3wm ~Reg. Linux User #449130
20 Jan 2021 ~ "End of an Error"Running antiX 17.2 with i3 on T430 Lenovo I have xbacklight 1.2.1.1+b2 and backlight is working fine. Fn+F8 & Fn+F9 (non-systemd)
I also run Debian 10 on the same machine after installing xbacklight 1.2.1.1+b2 backlight is working fine here too.. (systemd)
It is the same story with my Lenovo X220 working with both antiX & Debian..
tlaloc77
Running antiX 17.2 with i3 on T430 Lenovo I have xbacklight 1.2.1.1+b2 and backlight is working fine. Fn+F8 & Fn+F9 (non-systemd)
I also run Debian 10 on the same machine after installing xbacklight 1.2.1.1+b2 backlight is working fine here too.. (systemd)
It is the same story with my Lenovo X220 working with both antiX & Debian..
Thank you, but xbacklight is by now known to not work and the reason why it’s not working is also known. No point in trying further.
I use a tool called ‘light’ not xbacklight in bspwm. Here are the keyboard shortcuts I use: XF86MonBrightnessUp light -A 10 –or— XF86MonBrightnessDown light -U 10
Details are here: https://github.com/haikarainen/light
I hope this helps.
It might – ‘light’ looks promising – thank you very much, I try this later. Just wanted to say that I had a look at url and read some about it.
Hi tlaloc77, I can’t help you with lxqt,
but did you already try to add kernel-parameters to the GRUB_CMDLINE_LINUX-line in /etc/default/grub, likeacpi_osi=Linux acpi_backlight=vendor
on antiX ?
Yes, while trying to get xbacklight to do something, also “acpi_osi=Linux acpi_backlight=” (nothing behind the “=”, this was also suggested somewhere). Meanwhile I forgot whether this was a tweak for xbacklight or something standalone. Anyway, no success with it. It might be worth trying with ‘light’, so thanks for reminding me.
And thanks for this link!
- This reply was modified 3 years, 8 months ago by tlaloc77.
- This reply was modified 3 years, 8 months ago by tlaloc77.
- This reply was modified 3 years, 8 months ago by tlaloc77.
My inxi -zv7, inxi -Fxs and inxi -r are here: https://www.antixforum.com/forums/topic/a-proper-hellp/#post-2981
BobC
Did you try adding:
acpi_backlight=native
on the kernel command line?
I found other options here…
https://wiki.archlinux.org/index.php/Backlight
Also, maybe running nvidia drivers might help, but I would be careful making that change because I have had problems removing that once installed on other systems.
tlaloc77
GOT IT!!!
Took a bit of fiddling to get “light” compiled and installed… and… IT WORKS, YAY!
Then it took a bit more fiddling to get the key bindings right but now it’s working. 🙂
My inxi -zv7, inxi -Fxs and inxi -r are here: https://www.antixforum.com/forums/topic/a-proper-hellp/#post-2981
Well Done glad you have seen the light.
light_1.2_amd64.deb you could have just downloaded the deb file..and run sudo dpkg -i light_1.2_amd64.deb
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