[PLUG] Fedora 15 on Lenovo z570. Can not adjust screen brightness.

Chaitany Kulkarni shreeseva.it at gmail.com
Fri Jul 29 03:28:16 PDT 2011


Thanks Mayuresh.
It solved my problem.
Regards,

C P Kulkarni
On Thu, Jul 28, 2011 at 9:40 AM, Chaitany Kulkarni
<shreeseva.it at gmail.com>wrote:

> Hello,
> I got a new Lenovo Ideapad z570 with Core i5 second gen. I installed Fedora
> 15 on it. All things works well except I can not adjust screen brightness. I
> tries many solutions from net, but nothing works. I also updated kernel
> twice up to latest 3.0.1 Still problems remains. It seems that kernel have
> some issues with sandy bridge architecture. Also when checked for backlight
> option but it says no such option. also using su -c 'dmidecode -s
> system-product-name'  gives HuronRiver Platform. There is no options for
> backlight in /proc/acpi nor for video.
> There are acer-wmi and ideapad folders in /sys/bus/platform/devices.
> Please help to solve this issue.
> Thanking you,
>
> C P Kulkarni
>
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Copyright. All rights are reserved for any object, text, ideas, images and
any other things.
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