From owner-freebsd-x11@freebsd.org Thu Sep 29 13:26:05 2016 Return-Path: Delivered-To: freebsd-x11@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 0E035C0033E for ; Thu, 29 Sep 2016 13:26:05 +0000 (UTC) (envelope-from gurenchan@gmail.com) Received: from mail-it0-x22a.google.com (mail-it0-x22a.google.com [IPv6:2607:f8b0:4001:c0b::22a]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id C1D9CE8 for ; Thu, 29 Sep 2016 13:26:04 +0000 (UTC) (envelope-from gurenchan@gmail.com) Received: by mail-it0-x22a.google.com with SMTP id j69so82559772itb.0 for ; Thu, 29 Sep 2016 06:26:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=s5BxYdAD4Fh7+p4p4Vbsc15ypWmb32lSKOISxQzJ12I=; b=OEmkOBe9hKy5ysF8iI+OPAs38TDjxJfgTXd/EYx3uwlYSIcIIgjG7Savjriy8EwdFr ky3OARV+DX6215y3z4/JFxVkuRkSbDKrCnwNowBvDqMm4jf31gnDNe42B8HCJjx6Kw68 FEo78e8uOt7rARkqzfVBrNPM0P7dTtimfh8HYieRCKNWLuaAAPNXjXRkP1Ats1JTria7 gsHmv91E2hIcTEJjJhuFpreNlSsqkJeDH734VKvgutjebubvGuqWJVzYDubJvgpiQyAZ W5vf7fIcykSWpI9fhtnf58eWIrQ7Fafd01pG3Cf/Cxy+SWh8FJ38f3suPN2je9+dzbIN hHkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=s5BxYdAD4Fh7+p4p4Vbsc15ypWmb32lSKOISxQzJ12I=; b=MOWmJdARE8Q7k0nUXTE7HJ9GACFpM2GCln0wv9m1A8u6onuYeoyYNJ9kQVyrI5IvtD Z+ws2cYraeBaf2o/w7DTgosVLgb9RUbJb3IQAGmn6F7cr2YfRyF+rbujaX8Dvnt/V8LE HM9OMAXn7mnoXgCxKzNAFbRJynxSZwCF7P6+2DxBRKZpf4lZzrXZy+Z8a9pBYZfgQ8NN 8LZAHK7zF0hNrqRxqVDpwhfvtI5N8q//QZX7cfKqATHctxN5IKNoo/AmjJBH6yX4eOXr lZGWAChsbJ1n9MrbWDR1wi+OYDIVmapryIsA8TrTMvY+RQSmQkJQVz90f5cg+cxmBMKK PynQ== X-Gm-Message-State: AA6/9Rmc7zoar1Q/AHhQeMSIZ6+ly3molWyixlo47VdQxcEgQ1UZPdIFgqqrxv14WT6pQEV/aJe8x/+r0NH/XQ== X-Received: by 10.107.141.67 with SMTP id p64mr3383721iod.84.1475155564129; Thu, 29 Sep 2016 06:26:04 -0700 (PDT) MIME-Version: 1.0 Received: by 10.107.161.66 with HTTP; Thu, 29 Sep 2016 06:26:03 -0700 (PDT) In-Reply-To: <0b100cba-4702-46d7-8bb3-cf553a1a750b@ixsystems.com> References: <201609280627.u8S6RfXq002303@sdf.org> <201609280718.u8S7IP85011693@sdf.org> <201609290624.u8T6Ohd6028658@sdf.org> <201609290858.u8T8wokS002825@sdf.org> <0b100cba-4702-46d7-8bb3-cf553a1a750b@ixsystems.com> From: blubee blubeeme Date: Thu, 29 Sep 2016 21:26:03 +0800 Message-ID: Subject: Re: Nvidia drivers screen brightness and back light To: Ken Moore Cc: x11-list freebsd Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-x11@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: X11 on FreeBSD -- maintaining and support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Sep 2016 13:26:05 -0000 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 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 wrote: >> >> blubee blubeeme 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" >