[ubuntu-za] SOLVED Re: Video problems with 11.04

[Robin Bownes]

Thanks Hilton, that solution worked. For any others who may need it,
here is the solution:

turn on terminal and type :
sudo gedit /etc/default/grub

Change the line GRUB_CMDLINE_LINUX=" " 
to
GRUB_CMDLINE_LINUX="acpi_osi=Linux"

Back in Terminal -  run sudo update-grub

Restart and adjust screen brightness if necessary.

Robin


On Fri, 2011-04-29 at 14:37 +0200, Hilton Gibson wrote:

> I found this using Google
> http://ubuntuforums.org/showpost.php?p=10112062&postcount=6
> 
> 
> On 29 April 2011 14:20, Robin Bownes <robinbownes at afrihost.co.za>
> wrote:
> 
>         
>         
>         On Fri, 2011-04-29 at 12:58 +0200, frans wrote:
>         
>         > 
>         > 
>         > 
>         > On 11/04/29 12:42 PM, Robin Bownes wrote: 
>         > 
>         > > I have just upgraded from 10.10 to 11.04 on my Acer Aspire
>         > > 5332. I have never before had any driver or hardware
>         > > issues with this notebook and the various releases of
>         > > Ubuntu that I've used on it.
>         > > 
>         > > The upgrade went smoothly enough. However, on rebooting
>         > > into 11.04, my screen went black just before the login
>         > > screen. I could still hear the sounds that indicated the
>         > > loading of the login screen, and was even able to login
>         > > blind, and heard the sounds indicating the loading of the
>         > > desktop, etc. However, my screen remained black. 
>         > > 
>         > > The only way the I can see what I'm doing in 11.04, is to
>         > > access the Grub boot menu on bootup (hold Shift) and then
>         > > select one of the previous/earlier versions. Everything
>         > > then works fine. 
>         > > 
>         > > In other words, if I boot using 2.6.38-8-generic (the
>         > > default), my screen goes, and remains black, even though
>         > > everything else seems to be working OK.
>         > > 
>         > > In order to see what's happening on my screen I must boot
>         > > from either:
>         > > 2.6.35-28-generic
>         > > or
>         > > 2.6.32-25-generic
>         > > 
>         > > Any assistance would be most appreciated. Please keep in
>         > > mind, when providing such assistance, that I'm not a Linux
>         > > boffin.
>         > > 
>         > > Thanks.
>         > > 
>         > > Robin 
>         > 
>         > Have you tried to plug in an external display?
>         > I had this on my desktop when using the secondary display
>         > port.
>         > 
>         > Try changing the laptop's display with the FN-F# key that
>         > have the screen icon on it. maybe it'll work 
>         > 
>         > -- 
>         > When working on a computer you have to know enough:
>         >  To fake what you don't know.
>         >  Google what you can't fake.
>         >  How (and when) to 'motivate' the computer to do what Google won't tell.
>         
>         Thanks for the quick response Frans. However, unfortunately, I
>         don't have an external display to plug into the notebook. I
>         have tried using the display swap key, but it has no effect
>         what-so-ever.
>         
>         Any other suggestions from anyone? Please.
>         
>         Robin
>         
>         
>         --
>         ubuntu-za mailing list
>         ubuntu-za at lists.ubuntu.com
>         https://lists.ubuntu.com/mailman/listinfo/ubuntu-za
>         
> 
> 
> 
> 
> -- 
> Hilton Gibson
> Systems Administrator
> JSG Library Room 1025D
> Stellenbosch University
> Private Bag X5036
> Stellenbosch
> 7599
> South Africa
> 
> Cell: +27 846 464 758
> Email: hgibson__AT__sun.ac.za
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