Laptop monitor samsung R40 flickering and showing nothing but blue white colors. I connected the laptop to an external monitor and the laptop works. is it the source of the monitor the problem?
If the external monitor works fine then most likely there is nothing wrong with the motherboard or video card and the problem is somewhere inside the laptop display panel.
Here's what I usually do in order to narrow down problems like this:
1. I reseat the video cable connectors on both ends, on the motherboard/video card and on the back of the LCD screen. If the video cable gets loose, it might cause a problem like on your laptop.
2. Replace the video cable
3. Replace the LCD screen
Computer is turned on but absolutely nothing appears on the monitor. What can I do to best troubleshoot this problem?
If nothing happens when you press the power button, make sure all the wires are connected. make sure that both the computer and the monitor are plugged into a power source. Also, make sure that the monitor is connected to the computer. If it still does not turn on, you might be having a problem with one of the components in your computer. At this point I would take it to a specialist and have…
The current depends on what is connected to the battery's terminals. If nothing is connected to it, then there is no current, and the battery lasts quite a while. In general, the current is 1.5/resistance of the external circuit connected to the battery until that number gets too big, and then the voltage of the battery sags, because it can't deliver that much current.
The rating of "4600 mAh" is one description of the battery's capacity. It doesn't tell you anything about the delivery or discharge rate of the battery. Those depend on the external circuit that you have connected to the battery. For example, if nothing is connected to the battery's terminaks, then the battery is giving zero amperes.
There are several possibilities. First, this may seem obvious, but make sure the monitor is connected and turned on. Some connections can wiggle loose, so make sure they're actually hooked up properly. If that doesn't fix it, try a different monitor or a different computer to make sure the monitor itself isn't dead. If you've still got nothing, most likely the computer isn't recognizing the monitor. If you have multiple graphics cards, or a graphics…