Hi Yan-hoose, hi All,
>From my side, I went further in my investigations and I've found an
acceptable solution for my case. I read recently that the screen driver
might cause some issues due to some incompatibility with Ubuntu 13.10.
So I went in "System parameters", then "Softwares and updates", then the
"additional drivers" tab. I ticked there the first checkbox "Usage of
server X X.org..." (I'm trying to translate from French to English the
original text) instead of the 2nd one ("Usagve of video driver for...
AMD... fglrx-updates..."). I've attached the screenshot of the complete
window (in French), in case it can help to understand the details.
In my case, it fixed 2 issues:
- after waking up from a sleeping mode, the computer screen is now able to turn
the light off, after a certain time (I found out recently that I encountered
this bug only after waking from sleeping mode)
- this screen driver is now able to manage correctly the brightness manual
change (only difference with the other driver: the brightness levels are now 4
instead of something like 6 or 8 previously, but it's much better than nothing
or very random result).
The only bug that is remaining for me is that when I close the lid of my
laptop, it goes to sleeping mode instead of shutting down (setup made
previously with "tweak tool").
Important detail: my computer is a netbook laptop ACER ASPIRE ONE 722
C62KK (AMD dual core processor c60).
** Attachment added: "Screenshot - Ubuntu - System parameters - Additional
drivers - 2014-02-08 16:21:29.png"
https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1270957/+attachment/3973941/+files/Screenshot%20-%20Ubuntu%20-%20System%20parameters%20-%20Additional%20drivers%20-%202014-02-08%2016%3A21%3A29.png
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https://bugs.launchpad.net/bugs/1270957
Title:
13.10: screen does not turn off after x minutes of inactivity
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