Pavilion dm4t-1100
Windows 7
64 bit
ATI Mobility Radeon HD 5470
For the past year, the ATI Mobility Radeon HD 5470 is always on, and I am unable to switch to Intel HD Graphics.
If I open Catalyst Control Center, nothing happens when I click on Power Saving GPU. In addition, Intel HD Graphics does not show as an option in the drop down menu (see below).
However, the device manager shows both devices, and gives me the option of disabling both:
I have a manager friend who works on graphics issues for Intel, and he advised that I download and reinstall the Intel HD Graphics driver from the Pavilion dm4t-1100. I've done so, and when I try to reinstall it, I receive this message:
Not being able to fix this killed my battery, and I want to get this fixed before I kill another one.
I read in one fix that I may be able to roll back a device driver to get this working. Is that a possibility for this situation? If so, which of the two devices do I roll back?
Any other suggestions?