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I just installed Ubuntu 12.04 LTS 64 bit on a machine, everything went well accordingly but after login it just gives me a blank screen. During startup after BIOS message it shows "Out of range" error and comes to login window after logon it's just a blank screen. even after somehow it comes to an empty desktop screen i dont see the Unity bar or anything like that (Can change wallpaper, and system setting though).

And can't goto Console mode by pressing Ctrl+Alt+F1 - > it returns "Out of range" error.

System is new AMD Sempron with 2 Gigs of RAM has NVIDIA GeForce 6150SE-based graphic chipset.

any ideas on this?

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  • 1
    This question has been discussed at AskUbuntu here.
    – nanofarad
    May 18, 2012 at 20:13
  • Thanks this actually gave some idea's to search on Google. and apparently i found this thread over launchpad bug tracker page which had perfect solution for my problem link
    – kgthenerd
    May 19, 2012 at 15:03

2 Answers 2

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"Out of range" error

This is not from your BIOS. This is coming from your monitor. It is a message from your monitor that whatever signal is being sent to it is out of the display range capabilities of the monitor. Most likely it is the resolution of the text-only mode that you would see while the system is loading, especially considering that when you attempt to return to it by bringing up the console, you get that error again.

EDIT Just to be clear, there are two separate issues here. The Out of Range issue isn't related to why Ubuntu doesn't load fully once the GUI is up.

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I just installed Ubuntu 12.04 on my sister's HP Pavilion laptop (about 4-5 years old) with AMD 64 processor and NVIDIA graphic card and I had the same problem.

I could right-click on the desktop and create folders and even access system settings but I couldn't see the Unity Dash bar nor the upper task bar.

To fix the problem, I just right-clicked and access the system settings. I went to Additional Drivers and removed the active NVIDIA driver (which was actived and marked as recommended). I rebooted and the problem was fixed!

Since the graphics display correctly and I'm getting quite a decent graphical experience without the driver, I'm going to leave it like this. I'm also able to get full resolution too, so no compromise.

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