I have a HP TouchSmart tm2150es with hybrid graphics (ATI Mobility Radeon HD 5450 + Integrated Intel HD). It comes shipped with W7 Home Premium 64 bits. It has an Insyde BIOS.
I have certain experience time using Ubuntu Linux and I have installed a multiboot system.
The fact is that graphics have failed since pendrive install. With Natty/Ocelot 64 bit installation pendrive, screen turns black or system hangs, unless I modify boot parameters, adding
acpi=off. Thanks to that I could install Ubuntu. Then I start with my brand new Ubuntu in the HDD, but with the same problem.
I have read and tried some stuff:
This suggests to download and install the last proprietary drivers directly from AMD in Fedora's format, convert it to Debian's and install, but takes no better results, because I obtain a graphics card dump and I only can access with Ctrl + Alt + F1.
I have tried even updating the BIOS to the last HP's available version. UPDATE: Insyde BIOS don't give any possibility of changing the operative GPU.
I know that the problem is the hybrid architecture, but don't know how to fix the problem.
Could someone help me trying anything else?