Comment 8 for bug 1310489

Hi,

as written before I could fix the problem on my HP Pavilion 17-e026sg 17,3" AMD A10-5750M with Radeon HD8650G and Readon HD8670M.

Here comes what I did to install a fresh Ubuntu 14.04LTS 64bit:

I guess that you already have a USB start disc ready and will start with the first boot from this stick:

1. Start your PC end hit ESC to select from the boot menu and different boot option
2. select USB EFI HDD (or similar)
3. When UBUNTU menu comes up don't boot live disc boot directly in installation mode
4. from here on follow the instructions until the installation is finished
5. Ubuntu seems to fail on booting the first time after the installation but it's only the X-Server because it can't handle the grafic cards. It will show you that you have to reconfigure your X-server but don't proceed this!
6. Switch from error screen to terminal (strg+alt+F2) and wait until terminal screen comes up. Not sure if it is ctrl+alt+F2 for you ?!
7. When terminal is open login with your user credentials
8. Enter 'sudo nano /etc/default/grub'
9. Nano editor will open the Grub configuration. Enter there 'nomodeset' in line GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" before 'quiet splash'. (please se grub.txt attached)
10. enter 'strg+O' (see menu at the bottom of nano) to save and 'strg+X' to exit
11. reconfigure Grub with command 'sudo update-grub'
12. reboot your PC and it should start in X mode
13. Download latest 64bit catalyst from amd site (latest stable is 14.4 )
14. change authorization in terminal for this file by entering 'sudo chmod 777 amd-catalyst-14-4-linux-x86-x86-64.zip'
15. unzip file and run from terminal by entering 'sudo ./amd-driver-installer-14.10.1006-x86.x86_64.run' (you must be in the same folder where the file is stored!!!!)
16. you can decide if you want to do a custom installation or default. I recommend to use the default way!
17. when installation is finished go to terminal again and remove the 'nomodeset' from grub by entering 'sudo nano /etc/default/grub' edit it and close it again. Run 'sudo update-grub'.

The installation script will do everything what is necessary. It will also create a new xorg.conf which will not be overwritten any longer

Reboot your PC. From now on everything should work as planned

You can switch between the cards by entering ' sudo aticonfig --px-igpu' for the internal device or 'sudo aticonfig --px-ggpu' for the dedicated grafic-card. After entering the command you have to reboot your machine and it will restart in this mode until you switch back.

Alternative you can use the amd control-center. Enter 'sudo amdcccle' in the terminal and you will have a graphical tool to configure your cards.

Hopefully this will help you to fix the issue. For me it worked.

Best REgards,
Uwe