![]() I have attached a bug report log, which also shows my various attempts to hack around the problem (different = kernel parameters, using a self-built 5.12 kernel in the hopes nouveau would work sufficiently etc.), but the currently running config should be sane (distro kernel, no special kernel parameters). FWIW, brightness control is working when using the iGPU (using amdgpu driver) instead of the dGPU, but in that case the external monitor doesn’t work because the nvidia driver can’t be used as output sink for amdgpu. This is the case for both the 460.67 and 465.24 drivers. nvidia-settings -n -a BacklightBrightness=X (no effect).Fn keys (OSD comes up, but no further effect).I am using Fedora 33 on a Legion 5 Pro laptop featuring a RTX 3070 GPU, and backlight brightness control isn’t working at all. ![]() You can check it:Īnd, finally, r eplace the lines of code in the i3wm. With sudo make install, you can install the files in directories which are otherwise read-only to your user. If you are getting permission errors with make install check and see whether you are trying to install into system directories. So, just download or clone the source of light: Re: SOLVED backlight and screen brightness not working on OLED screen After spending quite some time searching around and finally going through different wiki threads, here, here and here it seems that xrandr or icc-brightness is the only solution for the OLED screens at the moment. Luckily, light is really lightweight and easy-easy to compile on every other distribution. Light is packed only for Arch Linux and you can find only packages for this distribution. I found an alternative to xbacklight command, a GNU/Linux application to control backlights called simply light. ![]() To run the script, it needs the superuser (sudo) privileges and so you must just give it to the root user to launch it from the configuration file.Īnyway, I preferred a different approach. $ sudo echo VALUE > /sys/class/backlight/intel_backlight/brightnessĪnd save the script in some place, maybe in user bin folder or something in your PATH. The most part of the solutions that I found, planned to make some scripts, changing the brightness with some bash commands: So, the following lines don’t work.īindsym XF86MonBrightnessUp exec xbacklight -inc 20 # increase screen brightnessīindsym XF86MonBrightnessDown exec xbacklight -dec 20 # decrease screen brightness The issue is set by the xbacklight command and brightness control doesn’t work in i3wm, I tested it and it doesn’t work also from a terminal session. Looking into the infinite knowledge of Google, I found a lot of solutions. A GNU/Linux application to control backlights Many solutions. ![]() *** The following solution is tested by users and it seems working without issues also on Fedora 28, 29, 30 and Ubuntu 18.04, 18.10 and 19.04 *** Light. Then i see that all brightness control has lost (Empty folder in sys/class/backlight). On both GNOME3 and Unity7, the hardware brightness keys work fine. acpiosiLinux acpibacklightvendor in the grub configuration file ( in GRUBCMDLINELINUXDEFAULT'quiet splash') But after a day when i star my laptop another problem occured Guess what blank screen then i have to add nomodeset in grub in grub page. How to fix brightness function key not working in. At the bottom of i3wm, we found respectively the GNOME and the Unity windows manager. Fix Brightness Control Not Working for Ubuntu Laptops Ubuntu 14.10/14.04 & Linux Mint 17. The issue on the Lenovo Thinkpad with Fedora 26 is the same on the Acer ES1-111 with Ubuntu 17.04. At this time, on my new laptop, the brightness hardware keys don’t work as expected. I’m very pleased with i3wm, but day by day I need to adjust something.
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