Re: brightness on lenovo ideapad

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On 5/6/20 8:03 PM, Sérgio Basto wrote:
On Wed, 2020-05-06 at 15:56 +0300, Adrian Sevcenco wrote:
On 5/5/20 8:47 PM, Sérgio Basto wrote:
On Mon, 2020-05-04 at 13:05 +0300, Adrian Sevcenco wrote:
Hi! I post here as i suspect that it is a kde problem with
brightness
settings:
while the keyboard special functions modify the setting in the
Battery and Brightness tray module,
the actual brightness is not modified, but i actually can modify
the
brightness using xrandr.
Does anyone have any idea why the kde module does not use the
xrandr
mechanism?

Power manager and "Display and Monitor" , what Fedora version are
youusing ?
f31 updated

I have IdeaPad L340 Gamming with f31 updated , and brightness works at
all places as expected
This is an C340 with Ryzen 7 3700U and i have:
[root@c340sev ~]# ls /sys/class/backlight/
amdgpu_bl0  ideapad

but the problem does not seem to be from the hardware support as xrandr brightness setting works, but the inability of kde power/battery widget to control it ...

Beside digging in code, does anyone know how the plasma widget try to control de brightness?

Thank you!
Adrian

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