Date: Thu, 29 Sep 2016 21:26:03 +0800 From: blubee blubeeme <gurenchan@gmail.com> To: Ken Moore <ken@ixsystems.com> Cc: x11-list freebsd <freebsd-x11@freebsd.org> Subject: Re: Nvidia drivers screen brightness and back light Message-ID: <CALM2mEkOJn3HuJg3sf_6L0wVAVNTcVGLJaL9_F-owQ41M5oq2w@mail.gmail.com> In-Reply-To: <0b100cba-4702-46d7-8bb3-cf553a1a750b@ixsystems.com> References: <CALM2mEn6xCz6xxGJm=MniBzosYeOU6rCRFmePdcJGVv6YjRkVA@mail.gmail.com> <201609280627.u8S6RfXq002303@sdf.org> <CALM2mEnEC2n8OiLJKAcJdBfAfbbrdzZzn3yYwQv1v0asdUSjDA@mail.gmail.com> <201609280718.u8S7IP85011693@sdf.org> <CALM2mEnbJD6ATHEjqu%2BqdjwFtrTPi%2Bvx=-=R6zMMt_YEXdL5jw@mail.gmail.com> <201609290624.u8T6Ohd6028658@sdf.org> <CALM2mE=-iVcTpiQm8=5aEc0LGWxWDhEisLmQ=a5_8x5tvEOkhQ@mail.gmail.com> <201609290858.u8T8wokS002825@sdf.org> <CALM2mEniWsaNaFoVAchcE_ajc=g=v3C9vD-VGVYmsbdy9zaR9w@mail.gmail.com> <0b100cba-4702-46d7-8bb3-cf553a1a750b@ixsystems.com>
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I already checked out the sysctl info, that's why I was sending this email. I wrote this in my first email: Here is the acpi information for this machine : http://paste2.org/LUcIwtzn I know FreeBSD isn't linux but at least on linux I could control the back light by first issuing some set PCI commands and then I could write to some files and the screen's brightness would actually dim or get brighter. I am writing to the mailing list after exhausting pretty much all my abilities to find a solution. Is there a way to control the screen brightness at the hardware level, xrandr and redshift aren't really working well; they sort of tint the screen and that's really destroying my eyes. On Thu, Sep 29, 2016 at 8:14 PM, Ken Moore <ken@ixsystems.com> wrote: > xbrightness and redshift do not touch the LCD levels within your monitor > at all - they both do software-level brightness control through modifying > the X server settings for colors and such (which is why they trample all > over each other if you try to run both). If you want hardware-level > brightness control there are a couple options: > > "xbacklight" is a utility similar to xbrightness, but only does > acpi/hardware brightness. It only works on monitors which support the ACPI > power levels and such though, so it might not work for you. > You can tweak the sysctl on your system to turn down the monitor > brightnees directly (if supported by your monitor - most laptops are > supported but desktop monitors are hit-or-hiss). > `sysctl hw. | grep brightness` should show you which one(s) are available > on your system. > > "pc-sysconfig" is a tool on PC-BSD/TrueOS systems which is a front-end to > the sysctl method for controlling screen brightness (as well as a few other > things like putting your system into suspend mode), and allows the user > make the changes as needed (sysctls can usually only be changed by root). > Run "pc-sysconfig -h" to see the options for reading/changing the screen > brightness levels as you need. > > > On Thursday, September 29, 2016 7:32:12 AM EDT, blubee blubeeme wrote: > >> I am not looking for a screensaver; I am looking for a way to dim the >> brightness of the screen. Even when I use the xrandr or redshift to dim >> the >> brightness, let's say i turn it all the way down to 0 or something like >> that. >> >> If I turn off the lights in the room, I can still see the led behind the >> screen lighting up the four corners of the screen. >> >> Not to mention that xset command you referenced me earlier doesn't work >> for >> even turning off the monitor. >> >> btw, I use i3lock -c 000000 to try to get a black screen as well but >> again, >> the lights are still there. >> >> On Thu, Sep 29, 2016 at 4:58 PM, Scott Bennett <bennett@sdf.org> wrote: >> >> blubee blubeeme <gurenchan@gmail.com> wrote: >>> ... >>> >> > -- > ~~ Ken Moore ~~ > TrueOS/iXsystems > _______________________________________________ > freebsd-x11@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-x11 > To unsubscribe, send any mail to "freebsd-x11-unsubscribe@freebsd.org" >
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