Good morning friends. I have this problem with my laptop, after logging-in to windows for about 5-15 minutes, my laptop suddenly goes blank. Sometimes the color is light blue or pure white. I tried to troubleshoot my laptop to know what is causing the problem so when I tried it in battery mode it works fine. however, when I started to plug the power adapter to charge my laptop the screen goes blank immediately or sometimes the laptop shuts down. another thing I did is to try too boot in safe mode with the power adapter on and everything works fine. my power adapter also have some bare wires coming out in DC side and it is already cut, I just bend the wires to keep it connected. I am asking for your kind help. Thanks you so much in advance. I believe that your solutions will be a great help for me.
I tried using a different power adapter but I didn't solve the problem. :(
There's a new problem with my laptop. sometimes when pressing the power button the screen won't show anything and it's not reading the hard disk. I think there is something wrong with the hardware. Please help. :(
As you mentioned the problem might be with some hardware in the machine, my suspect is also the same. According to your first post the computer works fine when using only the battery, so please try running the "TOSHIBA PC Diagnostic Tool Utility". This utility can help diagnose problems with hardware in your computer.
To run the TOSHIBA PC Diagnostic Tool utility:
1. Click Start, All Programs, Toshiba, Utilities, and then PC Diagnostic Tool, or click the PC Diagnostic Tool icon in the Protect & Fix tab of TOSHIBA Assist.
2. The TOSHIBA PC Diagnostic Tool window will appear.
3. Click the Diagnostic Tool tab.
4. Select the devices (viz. Hard Drive and Video) that you would like to test by clicking the check box that appears to the left of the device.
5. Click Start Diagnostics when you are ready to begin the tests.
6. If a failure is noticed please contact Toshiba Support with the description of the problem.
I have all these symptoms exactly, even that 'my power adapter also have some bare wires coming out in DC side' and I insulated it with tape. Everything worked fine till 3 months back. I bought the laptop as new 4 years back.
How can you till it's a video chip problem? not Inverter, not power chip,....
exactly the same here.
temp resolution for now:
boot on battery; open power options and edit your current power scheme. usually Balanced. click Change plan settings; then Change advanced power settings. in next window expand Processor power management, then Minimum processor state. set value for Plugged in to 100.
that worked for me. no guarantee for others.
I am glad to know that all the tests passed. Let's troubleshoot the video issue first. Intermittent video problems happen because of LCD cable issues. When running the tests in diagnostics if the cables are in good contact with the motherboard connectors the tests will pass. In this case, most of the time the issue is fixed by reseating the LCD cable. And if there is physical damage to the cable, it is a good idea to replace the cables. Please connect an external monitor to the computer and check if the video problem exists. Also take a local technician's help and reseat the cables. If you are comfortable doing the same yourself, please refer to the Service Manual of the laptop for step by step instructions and safety notes.
Before reseating the cable my recommendation is to update the Video drivers so as to eliminate any software issues. Also, when you take the laptop to the technician, please have the technician reseat the Hard Drive to eliminate any loose connections issue.