I have a HP Pavilion g6 notebook with AMD processor/graphics and the display is distorted.
After correctly installing the correct driver, I always get two graphics drivers installed at the same time:
1) AMD M880 G with ATI Mobilitz Radeon HD 4250
2) AMD Radeon HD 6470M
The display graphics is totally distorted unless I either uninstall or disable the second driver - then everything is immediately perfect until the next reboot when the second driver installs automatically (or is enabled automatically).
So I know what is causing the problem but I dont know how to stop / prevent it from happening.
The HD 4000 series and HD 6000 series use different driver sets. You should use the driver provided by HP themselves in this case.