I have a laptop HP Pavilion g6-1075er with Ubuntu 12.04 and AMD Radeon HD 6470M on board. I had default graphics configuration but some problems with xorg occurred. I had black screen, but I was able to "reset" graphics configuration to some workable state via recovery mode. But this state was slightly different from the default one (Alt+Tab didn't show same 3D selection, Alt+` doesn't work everywhere etc). So, I decided to revert it to default state. I checked this post http://ubuntuforums.org/showthread.php?t=1517170 and used the following commands:

sudo apt-get install --reinstall libgl1-mesa-glx libgl1-mesa-dri

sudo dpkg-reconfigure xserver-xorg

After rebooting I just get a black screen (in normal boot mode I think there is a nonblinking cursor also) and no login window. The same in recovery mode. So I can't enter any commands.

What can I do?

UPDATE: if I boot to Windows 7, hibernate and then boot to Ubuntu recovery mode, then I get the recovery menu.

By hibernating from Windows 7 and pressing cursor while loading Ubuntu I can get a TTY session. From there I tried to purge fglrx, install fglrx and many other things, but no effect so far.

  • ok, eventually I shrinked the Ubuntu partition, created a new one and I installed another Ubuntu (finally, I have working Ubuntu!). By that I can reach all my files (like firefox profile for example). Maybe some day I will repair the old system, but it was really strange...
    – vstepaniuk
    Feb 14, 2015 at 11:03

1 Answer 1


That post on Ubuntu Forums is over 4 years old - newer drivers have been released since then.

For Radeon drivers, this is my method.

  1. Boot up and when the black screen appears, press some of the cursor keys and a box appears with an X server error.

  2. Press CTRL + ALT + F1 to get a tty terminal.

  3. Log in as root. The password is your own password that you set during installation.

  4. Remove the Xorg drivers. apt-get remove --purge xserver-xorg-video-ati xserver-xorg-video-radeon

  5. Reboot

  6. Repeat steps 1-3

  7. apt-get update

  8. apt-get install fglrx-amdcccle-updates

  9. aticonfig --initial


  • thank you for your answer. I tried it, but it doesn't help
    – vstepaniuk
    Feb 4, 2015 at 19:05

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.