> > Hello everyone, > > my laptop is an Acer Swift SF315-41 with an AMD Ryzen 2500U. > > I'm on FreeBSD 12.1-RELEASE-p5 with drm-fbsd12-kmod (amdgpu). > > Everything works on this machine except for the hardware brightness > > controls. > > On OpenBSD and Linux they work like a charm, and so I think that there is a > > problem in acpi_video(4). I will attach dmesg and acpidump. Whenever I > > try to use the hardware brightness switches, this pops up on > > the system messages: "can't evaluate \SB.PCI0.GP17.VGA_.LCD_._BQC - > > AE_NOT_FOUND". As you will see, FreeBSD sees acpi_video0 only, and this is > > always inactive (sysctl: hw.acpi.video.lcd0.active = 0), but OpenBSD sees > > acpi_video0, acpi_video1, and others with VGA. Don't know what's the > > matter here, any suggestions? > > Please see > https://svnweb.freebsd.org/base?view=revision&revision=360657 > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=207086 > > ------------------------------------------------------------------------------------------------------------------------------------ > > Andriy Gapon
I tried the patch you sent, and I have a few questions: 1) when will this patch be avaiable on 12.1-RELEASE? 2) now the system does not spit out any more errors like the one complaining about _BQC missing: in fact it doesn't give errors at all, but the hardware brightness controls still won't work. Now hw.acpi.video.lcd0.active = 1 but if I try to modify hw.acpi.video.lcd0.brightness nothing appens. I still think that acpi_video doesn't see all video outputs (I investigated a bit further and on OpenBSD there are acpivouts on dmesg output, could be an hint). What could be wrong? _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-acpi To unsubscribe, send any mail to "[email protected]"
