04-08-2012 10:25 AM
I have a Qosmio X775-3DV80 with BIOS 1.70 installed. When I come out of hibernate the backlight stays off until I close the lid and reopen it. When I close the lid and open it I hear the notification sound like a new device is connected and then the screen lights up.
The weird thing is the backlight comes on initially during the Qosmio logo and Windows 7 "Resuming" screens. However, the backlight goes off when it has completed resuming. With the screen black (because the backlight is off), I can enter my password, hit Enter, and I'm logged in. So it appears that Windows is up but the backlight is just off.
I tried to enable and disable the "Power Up on Panel Open" option with the Toshiba Assist application but it didn't make any difference.
04-09-2012 01:19 AM
Try resetting the power plans. Open an elevated command prompt by searching for "Command Prompt" in the search field in the Start Menu. Right-click on "Command Prompt," and select "Run as administrator." In the command prompt, type the following:
Please let us know what happens. Good luck.
04-11-2012 04:37 AM - edited 04-11-2012 04:39 AM
I restored the power plans but the problem is still happening. Using the restored power plan, when I come out of hibernation the screen is off. The keyboard backlight is on. I try to "wake it up" by closing the lid and opening it again but the laptop goes to sleep. This is expected since the default power plan puts the computer to sleep when the lid is closed. I have to wake it out of sleep--which is really a second "wake up" if you include waking it up out of hibernation. In my custom power plan closing the lid does nothing so it doesn't sleep.
04-11-2012 04:58 AM
04-16-2012 09:17 AM - edited 04-16-2012 09:17 AM
Reinstalling the drivers did the trick. The laptop has come out of hibernation with the backlight staying on since I followed your instructions 4 days ago.
Before I reinstalled the drivers, I had Nvidia's driver v296.10 installed. However, the Nvidia drivers from the Toshiba site that I installed are older and when I stream videos from mlb.com and a couple other sites there's weird anomolies like a bright greeen bar at the top and color ghosting. When I reinstalled the Nvidia 296.10 drivers the video playback problems went away, but the laptop doesn't wake from hibernation correctly again. So, I think we've identified the problem.
Proper video playback is more important to me, so I'm going to stick with the new video drivers and live with it not coming out of hibernation correctly until there's a fix.
04-16-2012 04:07 PM - edited 04-16-2012 05:49 PM
Glad it worked and/or we identified the problem. Toshiba is, unfortunately, notorious about not updating their drivers. They only update them when there is a proven instability issue. This is the bane of gamers, etc, who need the most up-to-date drivers all the time.
You can sometimes load the chipmaker's drivers, and resolve the 'performance' issue(s). But, weird things can and do happen without the Toshiba drivers. Sleep/hibernation wake-up problems, brightness controls cease to work, etc, and more importantly, there can often be overheating issues. If you're going to continue to run the drivers from nVidia, watch your system closely for overheating. Toshiba PC Health Monitor will give you your critical temps.
04-16-2012 05:19 PM
04-16-2012 06:52 PM
I installed the Toshiba 268.85 nVidia Display Driver and noticed that the video issue seems to only happen when I'm running on battery. If I'm plugged in the video issue isn't there. Looks like using the nVidia or Toshiba drivers weird things will happen.
FWIW, I attached a screen cap of the video issue when I'm on battery.
04-18-2012 02:41 PM
Beyond doing a full Toshiba Recovery, to return your unit to its factory default out-of-the-box setup, I'm not sure what else to suggest. The instructions for this begin on page 64 of your User's Guide, and, if you haven't already, you should make a set of Recovery disks/media as directed on page 74 of your User's Guide.
But, given your problems I'm not sure this will resolve this issue. However, it might be worth it to demonstrate to Toshiba whether or not there remains some video problems with your model. As, I note from your model's BIOS update page, that there have been a number of VGA/video/VRAM related BIOS update fixes. Perhaps another is required?