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My PC won't start after installing the latest version of Ubuntu. I press the button to start the PC and then I see the BIOS start, but after that I get a black screen and nothing is happening. I can't even reinstall Windows 7 or choose between Windows 7 and Ubuntu.

Please help. I don't want to pay for fixing this. I don't remember the hardware, and since I can't access Windows 7, I can't tell you. The only thing that I know is that it is an HP Compaq 500bmt.

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marked as duplicate by karel, Aditya, Eric Carvalho, Braiam, guntbert Dec 23 '13 at 22:04

This question was marked as an exact duplicate of an existing question.

Please clarify your question with more details. Which version of ubuntu you have installed? Sounds like display driver problem. – Web-E Apr 2 '12 at 8:21
the version of ubuntu is 11.10 – sotos bic Apr 2 '12 at 8:31
Start the laptop and press F1 and see if you get any errors and paste the same here – mac Apr 2 '12 at 8:55
it is a pc but anyway wait – sotos bic Apr 2 '12 at 8:59
i pressed it nothing happend again black screen – sotos bic Apr 2 '12 at 9:00

If you have a usb stick to hand you could turn it into a Ubuntu Live USB, boot into it and reinstall grub, this may help. Once in the live USB install "Boot Repair" and reinstall grub using this tutorial.


After this restart your PC and at least this should get you back into Windows if not Ubuntu as well. Hope this helps.

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when i choose to boot from usb i get again the black screen :( wtf is happeing to my pc =/ ... any other solutions ? – sotos bic Apr 2 '12 at 10:27
What do you mean choose to boot from USB, do you mean once you have hit the Ubuntu options menu where you choose to install, boot into live and other options, or do you get the black screen as soon as you pass the bios? – Ross Fleming Apr 2 '12 at 10:50
i start my pc and then the brand of the pc (compaq) and down left it says esc for boot f10 for boot from lan etc . i press esc and resolution of screen changes and then it says to choose how i want to boot and i have some options . i press the one that is the usb and then nothing... – sotos bic Apr 2 '12 at 10:57
Are you 100% sure that the Ubuntu is correctly on the USB stick? Do have have another computer to test it with? – Ross Fleming Apr 2 '12 at 11:03
Also is there any way you could try booting from a Ubuntu CD rather then USB stick? As from your description it seems you do not have the option of specifically booting from USB. – Ross Fleming Apr 2 '12 at 11:07

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