
1. Lost Unity Dash, Window Frames, and Top Panel
If Unity is not responding to user inputs after upgrading to 12.10 and window frames disappeared, you can try these fixes:
- For Nvidia graphics cards, try to reinstall nvidia-current with this command:
sudo apt-get install --reinstall nvidia-current
For NVIDIA Optimus laptops, try to reinstall bumblebee with this command:
sudo apt-get install --reinstall bumblebee bumblebee-nvidia
Then reboot your system:
sudo reboot
- For ATI AMD graphics cards, try to remove the fglrx package with this command:
sudo apt-get autoremove fglrx --purge
Then reboot:
sudo reboot
If the fglrx package is not installed in your system, you can use these commands instead:
sudo apt-get autoremove fglrx-updates fglrx-amdcccle-updates --purge
sudo reboot
2. WiFi Stops Working After Upgrading To Ubuntu 12.10 (Broadcom Wireless cards)
You can fix wifi problems using two methods:
- Either connect to the internet via wired connection and run this command:
sudo apt-get update && sudo apt-get upgrade
Then reboot your system.
- Or use the following commands:
sudo apt-get install linux linux-headers-generic kernel-package
sudo apt-get install --reinstall bcmwl* firmware-b43-lpphy-installer b43-fwcutter
Finally, reboot your system.
If that didn't help, try these commands:
sudo apt-get remove bcmwl-kernel-source
sudo apt-get install firmware-b43-installer b43-fwcutter
sudo reboot
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