Win7 Monitor, no signal, but there's a sound.

The monitor has no signal, but a sound.

Reason Analysis:

1, the resolution set too high, the monitor does not support;

2, graphics driver is not compatible;

3, graphics card physical failure;

Workaround:

One, the resolution is set too high, the monitor does not support can be solved according to the following steps:

1, the Dark set Dafa: (although not visible but can operate)

Your monitor may not support your current resolution or refresh rate, advanced desktop and then probably in the margin point right click and then press C, and then press the TAB key, then enter, and then press the direction of the key ↓ five above, finally alt+a. At this point to the lowest resolution, and then a resolution test. I have met this problem, and this is the solution. As long as your graphics card is not bad, the monitor is not bad, so generally can.

2, the above method, regardless of use, restart the system, and then press F8 key, into the VGA mode (low resolution mode), and then set a relatively low resolution to save, into normal mode, and then set a correct resolution.

Second, the graphics driver problem

1, Boot press F8 key, into the safe mode;

2, in the Device Manager, uninstall the graphics driver.

3, after unloading, restart into the normal mode, and then use the Driver wizard a class of soft for the video card installation appropriate driver.

Iii. Physical damage of graphics card

Some of the fault is that you do not drive the graphics card can also normal boot, as long as a driver after the installation can not start normally, for such a graphics card, we can only repair or replacement processing.