Laptop screen not working on new 11.04 installation

Asked by Mathew Neurath

I've just made the jump from Windows 7 to Ubuntu 11.04, and am having some issues with getting the laptop screen to work. Before installing Ubuntu, my laptop was setup to use an external monitor as its primary display, extended onto the laptop screen. During installation, the laptop screen went black, and all output was sent to the external. After installation, no matter what I try I cannot get the laptop screen to work, only the external monitor. Ubuntu is detecting the laptop screen, and I can enable it, move both screens around etc in display properties, but it will not output anything to the laptop screen. Even if I disable the external, I just end up with no display at all.

I've tried booting the laptop with the external disconnected, and the normal bios etc info is displayed, but as soon as Ubuntu starts to load, it goes dead.

I've also tried using the Fn keys to switch monitor modes, nothing happens. Fn keys for other things such as brightness, volume etc work fine.

Laptop is an eMachines E525, I've tried looking for drivers thinking that may be the issue, but can only find Windows drivers.

Any help greatly appreciated!

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Ubuntu xserver-xorg-video-intel Edit question
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Solved by:
Mathew Neurath
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Revision history for this message
actionparsnip (andrew-woodhead666) said :
#1

Can you give the output of:

sudo lshw -C display; lsb_release -a

Thanks

Revision history for this message
Mathew Neurath (mat-neurath) said :
#2

mat@ICARUS:~$ sudo lshw -C display; lsb_release -a
  *-display:0
       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 rom
       configuration: driver=i915 latency=0
       resources: irq:45 memory:90000000-903fffff memory:80000000-8fffffff ioport:50f0(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:93400000-934fffff
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 11.04
Release: 11.04
Codename: natty

Revision history for this message
Mathew Neurath (mat-neurath) said :
#3

Managed to find this: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/765438/comments/11
Following that appears to have fixed it, though my brightness keys are working in reverse. I also seem to have to enter sudo setpci -s 00:02.0 F4.B=00 that I found in the OP of that bug to actually enable the screen when I reboot. Annoying, but at least it works.

Revision history for this message
Robert Norton (u-launchpad-20-robnorton) said :
#4

So -- just so you know you're not crazy. +1 Same Laptop. Same Issue. Yet, I can't understand the foreign language in the post you linked to (well, not entirely true, it's just going to take me a few times) -- Problem is, since I'm not USING an external monitor at all, my laptop -- my ONLY screen -- goes blank. However, based on your past, I think I'm going to hook up an external monitor and see what I can do. Thanks!

-Rob