[SOLVED] display brightness problem

[ALMIGHTY TECH]

hello ..
dell studio 1458 laptop
display adapter :- ATI Mobility radeon HD 5450
driver version : 8.683.2.0
there is no option for display brightness setting.
it is hidden.
and also hidden the dim display setting.
i cant reduce/increase brightness ( dim/bright display).
i don't know where settings gone. ???
see the attached pic.

 

[alexan_e]

If you install the ati control center (CCC) you should have many options available from there

Alex

 

[ALMIGHTY TECH]

but sir,
see my attached photo.
there is no options in windows 7 , before today it were there. but today only they gone ..
is it some windows os problem?
and there is not any option in CCC regarding display brightness.

---------- Post added at 23:51 ---------- Previous post was at 22:47 ----------

problem solved by restoring windows....