Date: Sat, 18 Jun 2022 13:53:47 +0300 From: Oleksandr Kryvulia <shuriku@shurik.kiev.ua> To: x11@freebsd.org Subject: Re: backlight(8) and Thinkpad special keys Message-ID: <2f8cb56f-c58c-d45e-2541-a479d3e41f45@shurik.kiev.ua> In-Reply-To: <20220617042845.vjnje56q2hixok3g@colony> References: <20220617042845.vjnje56q2hixok3g@colony>
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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:
notify 100 {
match "system" "ACPI";
match "subsystem" "ACAD";
match "notify" "0x00";
action "/usr/bin/backlight 20; service power_profile $notify";
};
notify 100 {
match "system" "ACPI";
match "subsystem" "ACAD";
match "notify" "0x01";
action "/usr/bin/backlight 50; service power_profile $notify";
};
notify 100 {
match "system" "ACPI";
match "subsystem" "IBM";
match "notify" "0x10";
action "/usr/bin/backlight +";
};
notify 100 {
match "system" "ACPI";
match "subsystem" "IBM";
match "notify" "0x11";
action "/usr/bin/backlight -";
};
acpi_ibm module is loaded after i915kms in /etc/rc.conf:
kld_list="i915kms acpi_ibm"
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