Sometimes i get a blank screen

Asked by Anand on 2012-05-22

I am using ubuntu 12.04. I have been having some trouble with lock screen lately. While the system is locked, I sometimes get blank screen without the lock screen. So I am unable to log back in. I have to shut down the system & restart once again. While this does not happen every-time, it nevertheless keeps happening from time to time. Can anyone suggest some measure. My keyboard shortcuts or manual lock screen are both working perfectly fine.

If you wiggle the mouse, does it wake up? Is it a laptop or desktop? Does the system have a make / model?

Kevin N (kevin-n-2008) said : #2

I have the same problem on my laptop (MacBook Pro), I close the laptop and open it again and it doesn't turn on again. I push the power button and it looks like it wants to turn on, but then it turns back off. I have tried pressing every button as well as moving the mouse. The only way that I can get the computer to turn on again is to do a hard shutdown and then turn the computer on again.

Anand (ananrk) said : #3

It is a laptop. Yes the laptop does wake up, if you move the mouse, but lock screen is missing. This does not happen all the time but from time to time. Laptop is a HP - G62. In the previous ubuntu versions, i never had this problem...

Jeet (gour-jitendrasingh) said : #4
Anand (ananrk) said : #5

HI Jeet! Can you tell me what needs to be done, as i cannot figure anything from the link you sent.

Jeet (gour-jitendrasingh) said : #6

I just related a existing bug to it...
On May 22, 2012 5:20 PM, "Anand" <email address hidden>
wrote:

> Question #198040 on Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+question/198040
>
> Status: Answered => Open
>
> Anand is still having a problem:
> HI Jeet! Can you tell me what needs to be done, as i cannot figure
> anything from the link you sent.
>
> --
> You received this question notification because you are a direct
> subscriber of the question.
>

As a workaround hit ctrl + alt + F2 (or F3) to get to a terminal, login with your user and then type

sudo killall Xorg

give your user password and re login ...

Please tell the brand of your video cards... if you don't know it from terminal type:

lspci | grep -i vga

Anand (ananrk) said : #9

00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 02)

Can you help with this problem?

Provide an answer of your own, or ask Anand for more information if necessary.

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