播放视频时刷新率下降

你好！
我在Core i3-2350M上内置了HD Graphics 3000（2015年的最新驱动程序，以及独立的GPU）。
操作系统是Windows 7 Pro SP1。
我正在使用连接到笔记本电脑的第二台显示器，显示器设置为刷新率为75 Hz的唯一活动屏幕。
当我试图在全屏模式下在软件视频播放器中播放电影时，愚蠢的图形驱动程序会随意将刷新率降至65 Hz。
奇怪的是，它只发生在播放器设置中设置的独占全屏模式。
这个选项对我很重要，必须开启。
另一个特点是它没有发生在以前版本的驱动程序（从2011年），只有新版本。
我希望英特尔代表告诉我它为什么会发生以及如何解决它。



以下为原文

Hello!
I have built in HD Graphics 3000 (latest driver from 2015, as well as the discrete GPU's) on Core i3-2350M. The OS is windows 7 Pro SP1. I'm using a second monitor attached to the laptop with the monitor set as the only active screen with a refresh rate of 75 Hz. When I'm trying to play a movie in a software video player in fullscreen mode, the stupid graphics driver is arbitrarily dropping the refresh rate to 65 Hz. Peculiar thing is that it happens only with the option Exclusive fullscreen mode set in the player's settings. This option is critical to me and must be on. Another peculiarity is it didn't happen with the previous version of the driver (from 2011), only with the new one.

I want an Intel representative to tell me why it is happening and how to fix it.