Comment 168 for bug 640100

Backlight issues really aren't relevant to this bug. If no bug exists for this issue please create a new one.

@turbolad, from looking back over you comments I think there's a good chance that the problem with your machine is different from the one affecting the N150. It would probably make sense to reopen your original bug report, and to open a new one for the wireless failing after resume if no other bug matches your symptoms.

@Susanne, the failure to suspend after 30 minutes are separate issues from this one, and you should file a new bug if no existing bug matches your symptoms. There is not a fix available for the failure to resume from suspend, but you can perform the following steps to work around the problem:

1. Open /etc/default/grub as root and modify the line beginning with GRUB_CMDLINE_LINUX to read:

  GRUB_CMDLINE_LINUX="intel_idle.max_cstate=3"

2. In a terminal, run "sudo update-grub2"

3. Reboot

After this resuming from suspend should function correctly.