Date: Thu, 9 Nov 2023 09:19:31 +0100 From: Emmanuel Vadot <manu@bidouilliste.com> To: "Dr. Amr Osman" <dr3mro@gmail.com> Cc: freebsd-hackers@freebsd.org Subject: Re: Brightness 100% when connect or disconnect charger Message-ID: <20231109091931.983f45f8fad4305569faddcb@bidouilliste.com> In-Reply-To: <CAEYFr1DV%2BHpBpUX9gs4CCM887aJnJybJMozPct6X=kFgw8g_ZQ@mail.gmail.com> References: <CAEYFr1DV%2BHpBpUX9gs4CCM887aJnJybJMozPct6X=kFgw8g_ZQ@mail.gmail.com>
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On Wed, 8 Nov 2023 21:57:21 +0200 "Dr. Amr Osman" <dr3mro@gmail.com> wrote: > Hello, > I have installed freeBSD 14rc4 on Lenovo Thinkpad x270 and xfce desktop and > when I > 1) connect the charger > 2) disconnect the charger > 3) resume from suspend > The LCD brightness is 100% which is really disturbing specially when I am > in dark room I don't have the issue on my Thinkpad X390 with suspend/resume but I do have it with the charger. I'm pretty sure that it's a hardware thing and we can't do anything about it without having some framework for sensors that can handle power supply connection/disconnection and events. > hw.acpi.video.lcd0.economy: 20 > hw.acpi.video.lcd0.fullpower: 30 > I have loaded acpi_video and acpi_ibm > and if I tried to adjust brightness it goes suddenly from 100 to 20 if I > press fn +f5/f6 You shouldn't need to load acpi_video on modern laptop, backlight(9) and backlight(8) is enought (if you have drm loaded). > What can I do to fix this issue? -- Emmanuel Vadot <manu@bidouilliste.com> <manu@freebsd.org>
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