Bug#836972: gnome-control-center could not get screen information anymore

[Đặng Duy Sơn]

Hi Andreas,

I have exact problem like Jean-Marc and I can reproduce them.

Also on my laptop, the brightness control on keyboard and slider are not 
working after gnome-control-center updated to 3.21. The screen is 100% 
brightness, but after resume from sleep, it jump back to 0% and I still 
can't control it.

I just use Linux and Debian like 
<https://www.mail-archive.com/search?l=debian-bugs-dist@lists.debian.org&q=from:%22Andreas+Henriksson%22>6 
month so I not sure how to and were to get the error message/code for 
this problem. I searched on syslog and kernel log but found nothing 
related to gnome-control-center or display settings. Maybe my system log 
and kernel log attachment can be useful.

My hardware info, if those are useful:
- nvidia gt410M with nvidia-driver 367.44
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