Bug 94857

Summary: xrandr does not set brightness under wayland
Product: Wayland Reporter: piero <dslpiero>
Component: waylandAssignee: Wayland bug list <wayland-bugs>
Status: RESOLVED NOTABUG QA Contact:
Severity: normal    
Priority: medium    
Version: unspecified   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:

Description piero 2016-04-07 10:08:16 UTC 
without wayland, this works fine on a macbook pro (intel iris video card):

xrandr --output HDMI2 --brightness 0.7

with wayland, this has no effect:

xrandr --output XWAYLAND0 --brightness 0.7

fedora 23

uname -a
Linux localhost.localdomain 4.2.3-300.fc23.x86_64 #1 SMP Mon Oct 5 15:42:54 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

xrandr
Screen 0: minimum 320 x 200, current 4480 x 1600, maximum 8192 x 8192
XWAYLAND0 connected 1920x1080+2560+0 600mm x 340mm
   1920x1080@0.1Hz   0.00*+
XWAYLAND1 connected 2560x1600+0+0 290mm x 180mm
   2560x1600@0.1Hz   0.05*+
Comment 1 Daniel Stone 2016-04-07 10:11:16 UTC 
It's not expected to. xrandr is a very low-level X11 control tool, and Wayland does not necessarily implement the same interfaces.

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