HMMMMM. Did I uncover something?
On Fri, Sep 10, 2021 at 11:14 AM Rocky Hotas <[email protected]> wrote: > > On set 10 10:39, Benny Siegert wrote: > > It depends on what the exact machine is. Try looking through the > > output of "sysctl hw" or "sysctl machdep" for options with > > "brightness", "backlight", or similar in their names. > > I have (in a laptop) > > 000:02:0: Intel Sandy Bridge (mobile) GT2 Integrated Graphics Device (VGA > display, revision 0x09) > 001:00:0: ATI Technologies Radeon HD 6400M (VGA display) > > I think the first one is not used. According to your suggestion, the > only relevant items in the whole `sysctl -a' seem to be: > > hw.acpi.acpiout1.brightness = 100 > hw.acpi.acpiout2.brightness = 100 > hw.acpi.acpiout6.brightness = 100 > hw.drm2.i915.invert_brightness = 0 > hw.drm2.radeon_backlight = -1 > > If I try (as root) to change the values of any of them, the operation is > permitted, but it has no effect (hw.acpi.acpiout* still remains at their > value 100), or it is not permitted: > > sysctl: hw.drm2.i915.invert_brightness: Operation not permitted > > sysctl: hw.drm2.radeon_backlight: Operation not permitted > > In fact, I am not able to modify the brightness of my screen: if I press > the F2-F3 keys which should do this, nothing changes. > > This is just FYI, as another example of hardware. Maybe the NetBSD driver > still doesn't offer a full flexibility with some configurations like > this one. > > Bye! > > Rocky
