Black screen after upgrade to 12.04.1

Asked by Omar Belkhiria on 2012-08-28

I've upgraded my Ubuntu 10.04 64 bit to 12.04.1. When I restart the laptop and select Ubuntu (I have Windows 7 also); the screen becomes black. I enter the password and login to Ubuntu (as I hear the login sound) and I still don't see anything .

My notebook is Acer 5736Z. processor: dual core Pentium T4500. Graphics card: Intel Express (GMA 4500M). 3GB RAM

Thank you for help

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Ubuntu xserver-xorg-video-intel Edit question
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Try the boot option:


May help

Omar Belkhiria (3oomayr) said : #2

 nomodest helps and I can log in to Ubuntu but screen resolution got bad (600*800) and I couldn't change it in display settings. Any ideas? Thnx a lot.

What is the output of:

sudo lshw -C display; lsb_release -a; uname -a


Omar Belkhiria (3oomayr) said : #4

Wrong information: the resolution is 1024*768 (4:3). This is the output of previous command:

[sudo] password for omar:
  *-display:0 UNCLAIMED
       description: VGA compatible controller
       product: Mobile 4 Series Chipset Integrated Graphics Controller
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 09
       width: 64 bits
       clock: 33MHz
       capabilities: msi pm vga_controller bus_master cap_list
       configuration: latency=0
       resources: memory:d0000000-d03fffff memory:c0000000-cfffffff ioport:4110(size=8)
  *-display:1 UNCLAIMED
       description: Display controller
       product: Mobile 4 Series Chipset Integrated Graphics Controller
       vendor: Intel Corporation
       physical id: 2.1
       bus info: pci@0000:00:02.1
       version: 09
       width: 64 bits
       clock: 33MHz
       capabilities: pm bus_master cap_list
       configuration: latency=0
       resources: memory:d3400000-d34fffff
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.1 LTS
Release: 12.04
Codename: precise
Linux omar-acer 3.2.0-29-generic #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

You may need a /etc/X11/xorg.conf to make the OS load the driver for the device. You want to use the intel driver.

Omar Belkhiria (3oomayr) said : #6

Sould I type in the terminal: /etc/X11/xorg.conf ?


gksudo gedit /etc/X11/xorg.conf

You will need to use the web to find sample files.

Omar Belkhiria (3oomayr) said : #8

Xorg.conf has appeared empty after executing this command.

The OS doesn't ship with one by default. Some graphics need it though and if you make one it will be obeyed,

I have the same problem.

Black screen when i reboot the machine. web say me to change


and fix the problem but the resolution was 1024x768 and the real resolution 1600x900

I read GMA 4500M has a bug on 12.04, the system show me

VESA: Intel(r)Cantiga Graphics

any idea?

Can you help with this problem?

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