Date: Sat, 18 Jun 2022 10:14:06 -0700 From: Pete Wright <pete@nomadlogic.org> To: Oleksandr Kryvulia <shuriku@shurik.kiev.ua> Cc: x11@freebsd.org Subject: Re: backlight(8) and Thinkpad special keys Message-ID: <20220618171406.bzwr6tctkitnta4v@colony.nomadlogic.org> In-Reply-To: <2f8cb56f-c58c-d45e-2541-a479d3e41f45@shurik.kiev.ua> References: <20220617042845.vjnje56q2hixok3g@colony> <2f8cb56f-c58c-d45e-2541-a479d3e41f45@shurik.kiev.ua>
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On Sat, Jun 18, 2022 at 01:53:47PM +0300, Oleksandr Kryvulia wrote: > 17.06.22 07:28, Pete Wright пише: > > hey there, > > i've noticed that on my lenovo thinkpad that when loading the drm-510-kmod driver > > the my usual way of managing screen brightness via hw.acpi.video.lcd.brightness > > does not work (the sysctl knob is not available). when loading the drm-54-kmod > > it is available. while debugging this i've noticed that using both drivers i am > > able to adjust things via the backlight(8) utility - thanks manu! > > > > the one drawback with this is that it seems like acpi_ibm(4) is no longer able > > to manage screen brightness. i.e. i can no longer use the special brightness > > function keys to increase/descrase screen brightness. > > > > so couple questions: > > > > 1. has anyone sucessfully tied their "special" keys to the backlight utility? > > 2. if not is the best approach to map the screen brightness keys to special events > > via devd that would call backlight(8) directly? my reading of the acpi_ibm > > man page seems to indicate it prefers to operate directly via sysctl which > > doesn't seem to work for me under the 5.10 drm driver. > > Hi! > On my thinkpad t490 I`m using backlight(8) with acpi_ibm(4) and devd(8). > Here is my simple config: Hey there Oleksandr - this worked like a charm. Thanks for sharing your config! -pete -- Pete Wright pete@nomadlogic.org
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