10-13-2011 01:25 PM
I have an HP ProBook 4520s (WIndows 7 64-bit). Several months ago I was promoted to upgrade one of the ATI drivers, which I did (sorry, I'm not sure of the details).
Ever since I did this, I've had several issues with the display and also the power options.
1 - I don't have the options to connect to projectors or other external screens, through Fn F4 or any othre means, and it's not detecting automatically either;
2 - the screen brightness seems to go to about half the level it did when new, and the brightness icon doesn't show any change when i increase the brigtness (this is even when plugged in to the power pack)
1- I don't have the option to sleep or hibernate, from the Start>Shut Down menu
2 - the laptop won't hibernate when i close the lid, and it doesn't have the option to change this setting in any of the power management options
Any ideas of how i can either update drivers (and which i should update with) or how i can return to default settings?
Other than that, it's a great laptop for my work.
10-13-2011 04:02 PM
This seems to be driver related issue. The drivers were intended for you laptop or just downloaded from AMD / ATI website?
My advise is to uninstall the drivers that you just installed, reboot the machine and then install this drivers for your laptop: ftp://126.96.36.199/pub/softpaq/sp52501-53000/sp52818.exe