https://bugzilla.kernel.org/show_bug.cgi?id=153401
Zhang Rui <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- Component|Other |Power-Video Assignee|[email protected] |acpi_power-video@kernel-bug |.org |s.osdl.org --- Comment #21 from Zhang Rui <[email protected]> --- (In reply to Zhang Rui from comment #20) > (In reply to Luca Viggiani from comment #17) > > (In reply to Zhang Rui from comment #15) > > > > > > (In reply to Luca Viggiani from comment #13) > > > > Ok I have found a solution... > > > > In BIOS settings of the laptop I have disabled "Load Legacy Boot > > > > Options" > > > > from the Boot menu. > > > > That setting was required to be enabled before kernel 4.7.x in order to > > > > make > > > > the fn keys to work. Now it must be disabled. > > > > > > why it must be disabled? > > > > Otherwise you get the flash effect (see my original report) with kernel 4.7 > > > > > > > > > As a side effect now brightness changes in steps; before it was > > > > changing in > > > > a smooth way. But this is very minor thing. > > > > > > > how does it change in steps? > > > > For example if you are at 100% and set it at 90% it jumps immediately to > > 90%. The old behavior (kernel 4.6 + BIOS setting enabled) it changes > > smoothly from 100% to 90% in about one second. > > > > > > I'm still confused. > > > some questions: > > > 1. in 4.6 kernel, with BIOS option disabled, what it behaves like? > > fn keys to adjust brightness do not work > > > > > 1. in 4.6 kernel, with BIOS option enabled, what it behaves like? > > brightness can be adjusted; smooth transition between current and new value > > > > > 1. in 4.7 kernel, with BIOS option disabled, what it behaves like? > > brightness can be adjusted; step transition > > > > > 1. in 4.7 kernel, with BIOS option enabled, what it behaves like? > > Flash effect (smooth changes): for example if I set it to 50% it starts > > "bouncing" from 100% to 50% and back in a smooth way. > you're changing the BIOS option because of this flash, right? -- You are receiving this mail because: You are watching the assignee of the bug. ------------------------------------------------------------------------------ _______________________________________________ acpi-bugzilla mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
