Date: Thu, 21 May 2015 14:01:23 +0200 From: Polytropon <freebsd@edvax.de> To: Avinash Sonawane <rootkea@gmail.com> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: Brightness control in FreeBSD 10.1-RELEASE Message-ID: <20150521140123.a18aadc2.freebsd@edvax.de> In-Reply-To: <CAJ9BSW_Pf5BkL2TJfChy69k9ndCq_4Vku=ExTFFa5RbeWjHbkg@mail.gmail.com> References: <CAJ9BSW-w6YvA71zu=zV2e_r4Lg78tCPahCc2_6CBkEDdmairFw@mail.gmail.com> <CAJ-VmomybDZX54aP1UWCZvw-H-JUmbbTaocmg4X_kHw7-E1mzg@mail.gmail.com> <CAJ9BSW_Pf5BkL2TJfChy69k9ndCq_4Vku=ExTFFa5RbeWjHbkg@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thu, 21 May 2015 17:17:45 +0530, Avinash Sonawane wrote: > Another observation: > I can change the brightness (increase/decrease) while FreeBSD is > booting so it looks like FreeBSD does properly loads the driver > controlling the brightness change. (?) Is this really a thing of "driver"? Yes, I know: "Modern" laptops use software to "connect" the keys to the brightness, whereas old laptops did that "in hardware" somehow - independent from the OS, even working in BIOS or during bluescreens. I could imagine that somehow, when the OS and the GUI is loaded, the keys designed to adjust brightness emit a "normal" key code that the GUI (here: X's keyboard input machanism) picks up and does something stupid with it. You can easily check for that possibility: install the "xev" (X event viewer) port and press those keys. Look for "KeyPress" entries. What happens? -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20150521140123.a18aadc2.freebsd>