Does vga in the laptop by default?

Hi guys, got two boards from laptops and two workers, but they have no screens there are vga and there is such a monitor, but when you connect the Board via the vga screen does not react, the questions:
The fact is that, by default, run the Flex cable for the monitor of the laptop and vga need to shift systematically?
If so, then how to do it without screen..?
And maybe I'm wrong, and still vga and train in the same priority, and it is necessary to look in the direction that does not work something in broken(in two), and that's why the monitor is not responding?
The specifics of the question: does the vga connector of the laptop by default, so I need to connect the monitor to the motherboard without system intervention, the monitor does not respond to the connection.
June 10th 19 at 16:13
4 answers
June 10th 19 at 16:15
Very much depends on the camera. I have a bunch of laptops and tablets. Some on the monitor it duplicates the splash screen the BIOS when booting. Some output to the external monitor is enabled in BIOS (default laptop, monitor, both). Some output to the external monitor can only be enabled with Fn + the function key, and only when installed in Windows program.
June 10th 19 at 16:17
In most cases, they'll have to give the image on vneshke. But there may be exceptions, and maybe something not to work. You can try to clean the train if suddenly inserted. You never know.
not inserted - arlo.Romaguera28 commented on June 10th 19 at 16:20
June 10th 19 at 16:19
Depends on the platform where you collected the laptop, depends. Try to specify a search query: "platform name" (not the laptop model, namely the model of the motherboard), the image on vneshke. You throw on some specialized forum (Vlab, notebook1), and there already will either find the answer or ask.
June 10th 19 at 16:21
Passed through my hands a few laptops with broken screens, and always when disconnecting the ribbon cable to the screen in the cover image may be transferred to the VGA connector. There were no exceptions. As far as I know, the video card connects to the video controller to the display via the DDC line (two wires in the ribbon cable or the cable), and the reports about his presence and supported video modes. If more than one screens, the video card decides in what form and what order to serve them. If the screen one, there is no options, the issuance comes at him. (By the way, if any of the screens, the passage of the POST should be about that beep.)
If the issue of pictures on a single screen, then there is a defect video card and likely unrecoverable under normal conditions.
and how can he be corrupted? - arlo.Romaguera28 commented on June 10th 19 at 16:24
interesting question... Yes as you like - a manufacturing defect, aging, impaired soldering from vibration or shock, overheating, etc., etc.
For you the main thing here is newestnewest at home. Such things are even authorized service not everyone can handle it. No wonder that booming sales of the so-called "restored" vehicles, i.e., handed over back under warranty and sent back to the factory. And I'll tell you a secret - personally, I tend to buy these because they are indistinguishable from the rest on any parameters other than price (it is put to them two or three times below). Here's my first smartphone of those is still working fine with no problems. - arlo.Romaguera28 commented on June 10th 19 at 16:27

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