Linux - HardwareThis forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?
Notices
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Get a virtual cloud desktop with the Linux distro that you want in less than five minutes with Shells! With over 10 pre-installed distros to choose from, the worry-free installation life is here! Whether you are a digital nomad or just looking for flexibility, Shells can put your Linux machine on the device that you want to use.
Exclusive for LQ members, get up to 45% off per month. Click here for more info.
Could you give me the start point for this problem.
I mean I have got hp pavilion dv6630er laptop. Everything is fine but the brightness control of my monitor does not work.
I supposed that there is some acpi function to make it works but I know nothing about this.
Many laptops have 2 brightness settings in the bios, one for AC powered and one for battery powered. This is setup through "setup" or similar before the operating system boots up.
What are you using to change brightness under Windows and Linux? I have an old Pavilion ze4315 and I've always used the Fn key with the F1 and F2 keys to change brightness. I believe all laptops have something similar designated by symbols printed on the keys and it should be controlled by the hardware and not the os.
It is controlled by special drivers, which you installed when installing windows. Those drivers probably access acpi/apm and consequently manages your screen brightness. What does happen if you follow dracolich advice?
It seems that my English not so well. "dracolich advice" What does it means?
I understood that there is some acpi or apm interface to control brightness. And I want to know which one. But it seems that it is not possible.
My Pavilion laptop, for example, has symbols on the F1 and F2 keys that look like stars. If I hold the Fn button and press F1 repeatedly the screen gets brighter. Fn + F2 makes it darker. This function is controlled by the BIOS. I don't use graphic utilities for power management. There may be KDE or GNOME tools to change brightness using acpi but I've never checked.
It seems that my English not so well. "dracolich advice" What does it means?
I understood that there is some acpi or apm interface to control brightness. And I want to know which one. But it seems that it is not possible.
LinuxQuestions.org is looking for people interested in writing
Editorials, Articles, Reviews, and more. If you'd like to contribute
content, let us know.