11-23-2012 05:22 AM
Having an odd problem with a 2-week old Yoga 13 from BestBuy: here is the issue:
When the power is plugged into the machine the display turns off (black screen). the device is still turned on and running. If you then unplug the power adapter the display will turn back on.
I called Lenovo tech support but that was a total waste of time - they did a screen sharing session and started looking at the display settings then gave up and told me to return it to best buy.
thanks if anyone has other ideas on what's going on with the device
12-13-2012 10:49 PM
Just a complete guess but what if you go to Control Panel and then to Power Options and check your brightness settings. Maybe you have set it to zero brightness when plugged in? Again, this is just a complete guess.
12-14-2012 06:57 AM
Good idea about the display brightness settings -- Search for Power, select Settings, click on Power Options. Check screen brightness for the selected plan. Then click on Change Plan Settings for the selected plan, then Change Advanced Power Settings, open Display and check all the options like Dim Display After while Plugged In.
01-02-2013 09:59 AM
I had a similar issue on my 2 week old yoga 13. Plugging in the computer, and I can barely see the screen. Unplug and it's bright. I just went to the control panel and searched for power and found a brightness setting for plugged in power was 50%, by default. Not sure why Lenovo defaults power setting to 50%, but this was easily fixed by changing the setting to 100%.
01-03-2013 01:36 AM
In Tray you have Lenovo Energy Menagement. In Intelligent Energy Saving tab you have screen light. Also in control panel you have screen brightness (as mentioned in post above). Both things are responsible for brightness.
08-31-2013 06:11 AM
In Explorer go to: Control Panel\Hardware and Sound\Power Options\Edit Plan Settings
Click on the hyperlink to change plans for the setting that will allow you to adjust the brightness when the computer is both plugged in and when it is not. I had the same problem and am not sure how the settings were changed as I have been using the computer for months.
I hope that helps!