Resolved Horrible shutdown sounds

Whenever my computer shuts down, I get a brief, high-intensity blast of static that makes me jump each time. It sounds really bad, like something is being damaged, though that is not the case. This only happens with HDMI to my TV, which is being used as an audio and video monitor. It happens with different HDMI sources. The volume control affects it somewhat, but even with the volume down it is still a frighteningly loud noise and then I have to turn the volume up again because it is much too soft for anything else.

Does anyone have any idea what causes this, and if there is a way to mitigate it?

 

Does it produce the static noise if it's not connected to the TV?

 

No, the sound is a loud cracking and popping noise that comes from the TV speakers. It is very brief but very loud. It only happens when the HDMI is connected to the TV, which supplies audio as well as video. If I use VGA or DVI with an analogue audio connection, it doesn't happen.

 

Hi Evan,

Display card is Geforce 210 I bought second-hand. It seems to work well except for the burst on shut-down. The sound just says high definition audio device. I can't get any other information from it.

 

Have you tried another HDMI cable? Neil.

 

I just replaced with an expensive high quality cable I bought in the sales but no difference.

 

OK, I updated all the drivers and I was glad to do that, so thanks for the links. However, they still didn't make a difference. I think this must be a bug in the TV. It is an old LCD, from before HDCP. Maximum resolution is 720p. It works well as a monitor, but I haven't been using HDMI until now. I think whenever the HDMI connection is broken, whether by unplugging the cable or turning off the computer, it causes the static blast. There probably isn't a way to prevent this, except by muting the TV or turning it off first.

 

I don't have one that is convenient but I do have other computers I am setting up with HDMI cards and they all seem to do more or less the same with this TV (which is old, heavy and not easily moved).