Ubuntu
linux package

  1. Bug #826386
  2. Comment #9

Comment 9 for bug 826386

Revision history for this message
travis sparks (travissparks1307) wrote : Re: No backlight display Acer Aspire 5734Z

A workaround has been found, and confirmed to work. After booting into the OS, running this command in the terminal activates the back light.

$ sudo setpci -s 00:02.0 F4.B=0

Unfortunately this command must be run after every boot. When resuming from suspend, the back light does not return.