Hello Paul, On my new Dell Latitude Bios, there is an option to turn on/off (using Fn 7 keys) the backlight. It works well with stock install and fw_update.
Hope this is useful, Good luck, Rajesh Original Message From: j...@posteo.de Sent: January 13, 2019 07:53 To: misc@openbsd.org Subject: Re: Backlight on Dell Laptop not adjusting brightness Hi, I use https://github.com/jcs/intel_backlight_fbsd to change the display brightness of my XPS. Maybe have a look at that. Cheers, Jan On 01/11, Paul Swanson wrote: > Ted, thanks for those tips. > > I'll get stuck into it and report back once I've made some progress. > > Paul Swanson > > > Sent from ProtonMail, encrypted email based in Switzerland. > > ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ > On Friday, January 11, 2019 7:28 PM, Ted Unangst <t...@tedunangst.com> wrote: > > > Paul Swanson wrote: > > > > > $ wsconsctl display.brightness=5 > > > display.brightness -> 5.00% > > > This laptop is essentially all Intel Skylake under the hood some I'm > > > wondering > > > why it's not playing nice like on the Lenovo / ThinkPads. > > > Below is my dmesg and also Xorg.0.log. > > > "DELLABC6" at acpi0 not configured > > > "DELLABCE" at acpi0 not configured > > > "INT3400" at acpi0 not configured > > > acpivideo0 at acpi0: GFX0 > > > acpivout0 at acpivideo0: LCD_ > > > > I went back and reread this. In theory, acpivout should support backlight > > control. That's another place to look and see what's really happening. > >
