Comment # 31
on bug 104064
from taijian@posteo.de
(In reply to Harry Wentland from comment #30) > This probably happens because we advertise a backlight device if we have an > eDP connector available, even if it's disconnected. See > https://cgit.freedesktop.org/~agd5f/linux/tree/drivers/gpu/drm/amd/display/ > amdgpu_dm/amdgpu_dm.c?h=drm-next-4.17-wip#n3601 for more info. OK, that makes sense, even if it is unfortunate. I'm fairly certain that my HDMI and DP connectors are connected to the dGPU, even if I never use them. So it makes sense that a backlight device get's created for that, I guess. Too bad that the code commentary says that there is no way to check whether it is actually needed, apparently.
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