Ubuntu is an Open Source Operating System freely available this is based on Debian architecture. It’s also available for both 32 and 64 bits Operating Systems . The best part of it is you do not need to install any driver like sound card , graphics , Lan etc. it installs all the required driver by default at the time of installing the Operating Systems.
If you’re facing any issue related to graphic like Could not apply the stored configuration for monitor . Here is the solution for it.
You can adjust the resolution of your screen either by Terminal or by manual setting.
From Terminal , You check the available Resolution by typing the command Xrandr
This command will display you all the resolution available
Now we come to resolve the issue ,
For resolving this issue you will have to remove a file monitors.xml
Type rm –rf ~./config/monitors.xml
After running this command system will reboot then you will see this message will not come again when the system gets up.