HP LAPTOP BRIGHTNESS CONTROL DRIVER HOW TO

Do I need to add additional software sources? I did not find any on the page where the driver can be downloaded.

HP LAPTOP BRIGHTNESS CONTROL DRIVER HOW TO

I get a lot of unresolved dependencies and do not know how to fix that. Hp has a video driver for linux for the 6570b notebook series, link. but that removed the adjusting brightness option from the system settings and the shortcuts did not do anything. I tried to write in /etc/default/grub: GRUB_CMDLINE_LINUX='quiet splash acpi_osi=Linux acpi_backlight=vendor' Find the fn key, which is usually located in the lower left corner of your keyboard to the right of the control wrench. If this doesnt work for you, follow the second steps. With the proprietary drivers (fglrx and fglrx-updates) ubuntu loads to the logon screen, but after logon just the desktop image is displayed. On some HP laptops, you only need to press F2 o F3 to adjust the brightness.

In additional drivers only the xserver-xorg-video-ati drivers are working fine for me (but without brightness control: adjusting the value in /sys/class/backlight/acpi_video0/brightness, but the actual screen brightness stays max). I have been trying to get a video driver on my laptop so that brightness up and down shortcuts (FN+F9 / FN+F10) work. I am sorry if this is a duplicate question, but after 2 days I did not find the answer to this problem, and I would really appreciate a link to a solution.

Hp laptop brightness control driver