Ubuntu: upgrade ubuntu 12.04 to ubuntu 12.10 (lower graphics mode)



Question:

I just upgraded my 12.04 based Dell Inspiron laptop to 12.10 but after the reboot I got a message saying system is running in lower graphics mode. But I'm still not able to access Unity and GNOME. This is with an AMD Radeon HD 7570M graphics card. How do I fix this issue?


Solution:1

I have Ubuntu 12.10 and was getting the same error, so I found this thread and only run:

sudo dpkg-reconfigure xserver-xorg   sudo reboot  

For now this was my solution, hope this help. Thanks!


Solution:2

try to go to console and remove the fglrx driver while in low graphic mode press Ctrl+Alt+F1 and login with your user name and password then run

sudo sh /usr/share/ati/fglrx-uninstall.sh  sudo apt-get remove --purge fglrx fglRx_* fglrx-amdcccle* fglrx-dev* xorg-driver-fglrx  sudo apt-get remove --purge xserver-xorg-video-ati xserver-xorg-video-radeon  sudo apt-get install xserver-xorg-video-ati  sudo apt-get install --reinstall libgl1-mesa-glx libgl1-mesa-dri xserver-xorg-core  sudo reboot  

and also i would recommend to reinstall ubuntu desktop with this command sudo apt-get install --reinstall ubuntu-desktop Maybe it will help.


Solution:3

For Intel integrated graphics on Core processors, it seems that lightdm is the culprit and workarounds are add a delay in rc.local or install and use gdm. Launchpad seems to think that lightdm is too fast at querying for a display and people are saying SSDs can contribute to this race condition. Not sure if this would help you.


Note:If u also have question or solution just comment us below or mail us on toontricks1994@gmail.com
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