Display the cause of the jitter occurred

Display refresh frequency set too low

When the monitor refresh frequency set below 75 hz,hp pavilion dv5-1005ea laptop cpu fan screen often appear jitter, twinkling phenomenon, the refresh rate appropriate adjustable high, such as set up more than 85 hz, screen dithering phenomenon generally not happen again.

Power transformer from a display and chassis too close

Power transformer work will cause large electromagnetic interference, resulting in screen dithering. The power transformer in the far away from the casing and the display of place, can let the problem is solved.

Inferior power or power equipment has been aging

Many kludge power devices used by the work,hp pavilion dv5-1005ec laptop cpu fan materials are very poor, easy to cause the computer circuit impeded or power supply does not follow to go up, when the system is busy, display especially will appear screen dithering phenomenon. The power of a computer equipment began to age, also easy to cause the same problem.

Let the speakers from the monitor too close

Speaker of the magnetic field effect can interfere with the normal work of the monitor, display generate screen dithering and series such as color of magnetic interference phenomenon.

Virus do mischief

Some computer virus will disturb the screen display, hp pavilion dv5-1005ef laptop cpu fan such as: character inversion, screen dithering, graphics flip display, etc. Online ubiquitous screen dithering script, it can make you come back after the head like cattle.

Display card bad contact

Heavy insert graphics card, the fault can be eliminated.

WIN95/98 system caused by write cache

If belong to this reason, in the control panel - system - performance - file system - troubleshooting prohibited in all drive after writing hp pavilion dv5-1007ax laptop cpu fan type cache, can let the problems are solved.

Power filter capacitance damage

Open the case, if you see power filter capacitance hp pavilion dv5-1007cl laptop cpu fan (circuit board on a biggest the capacitance) top take, then explain capacitance is broken, screen dithering is caused by the power failure. Changed after the capacitance, can solve the problem.



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