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Recently I upgraded to Ubuntu 12.04. The computer is an Acer Aspire 5732Z and I have 2 problems:

  1. When I log onto Ubuntu (in 3D mode) it begins in 2D mode.
  2. I cannot change the screen resolution.

Since installing it at first, the screen appeared black, causing problems, but I solved it with the "nomodeset".

Any help is appreciated.

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I have the same computer and the same problem. The Acer Aspire 5732Z uses the "Mobile Intel® GL40 Express Chipset ... featuring Intel® Graphics Media Accelerator 4500M" and has a native LCD resolution of 1366 x 768 and 1080p support in the hardware (see…). But as long as I have to use nomodeset to boot without a black screen, Linux won't let me use native or 1080p resolution. So the basic problem is needing nomodeset to boot. Other Debian-based distros have the same issue. – Ben C. Jun 28 '12 at 21:20
up vote 1 down vote accepted

You cannot use nomodeset with display effects and settings, as nomodeset tels Linux to use a more reliable, but not as feature-packed(it is quite simple and plain), video driver mode. You may try sudo apt-get install flgrx and then try disabling nomodeset, if you have an ATI graphics card. nomodeset also disables 3d effects.

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changes reinvested I did sudo gedit /etc/default/grub and went back to leave the line as it was before: put GRUB_CMDLINE_LINUX_DEFAULT="quiet splash". And start ubuntu without problems, and missed getting the black screen. But remains in 2D mode and I can not change the resolution of the screen: ( – user60108 May 3 '12 at 20:46
@user60108 What vireo drivers are you using? The default? Or new drivers you manually installed with Additional driver tool or command line? – hexafraction May 3 '12 at 20:48
I'm using the default, as additional driver tool not found any.. – user60108 May 3 '12 at 21:06
Dies the additional driver tool operate without nomodeset enabled? Try it again without nomodeset and see if it works. – hexafraction May 3 '12 at 22:10
No:(, aditional driver tool not found any.. – user60108 May 4 '12 at 1:47

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