12.04 boots to blackscreen on Acer Aspire One 751h

Question

Just installed Ubuntu 12.04, but when i'm trying to boot desktop in normal mode screen turns black, just black (like turned off), but when I'm trying to boot in secure mode top half of screen start twitch and flick, bottom is black. How can I solve this problem? Netbook Acer Aspire One 751h | Intel GMA500

Solution 1

I've installed a "fresh" Ubuntu 12.04 in my Acer Aspire One 751H, and I've the same problem.

Follow the steps to fix the issue:

• Open your Terminal - Ctrl + Alt + F1

• Restart X:

  sudo service lightdm restart
  

• Open /etc/default/grub:

  gksu gedit /etc/default/grub
  

  and change

  GRUB_CMDLINE_LINUX_DEFAULT=""
  

  to

  GRUB_CMDLINE_LINUX_DEFAULT="quiet console=tty1 acpi_backlight=vendor acpi_osi=Linux acer_wmi.blacklist=yes mem=1920mb"
  

Now it should work.

---

Source: Ubuntu Wiki and Bodhizazen Blog

Solution 2

This is a known compatibility issue with 12.04 and some restricted graphics drivers. The most likely cause is a

/etc/X11/xorg.conf

file that remained after the upgrade. Try booting into the 11.10 Live CD and disabling any proprietary drivers, which should fix it. Hope this helps!

Solution 3

just press button Fn+Left arrow or Right arrow while booting starts and that's it ! if its for acer laptop

Comments

[UbuntuSane]

Your kind words are appreciated. My intention was not to get my entry up or down, but thru to the interested ubuntu user with the same type of computer and problem. I am surprised finding myself on the wrong side by just sharing information others sparing a reasonable time of fiddling with parameters.