Sound incredibly low after changing monitors

[Farfisa]

Hello,
So I bought this monitor (https://www.newegg.ca/Product/Product.aspx?Item=N82E16824133185CVF&cm_re=298P4QJEB-_-24-133-185CVF-_-Product) recently. I installed it, no problem at all. Today I sold my old one (Asus VG248QE) and the guy who I was selling it to wanted to test it. I unplugged the new one, plugged the Asus (all by DisplayPort) and he tested it, again without any problem. But now I just plugged the Philips one again and the sound is now super low. I have to put my speaker's volume to 50 (max) to get the same loudness as when they were at 20 before. Anybody knows how to solve this incredibly annoying problem?

Thanks

 

[GearUp]

That scale is not likely linear but equipment changes can change settings. Also OS updates and driver updates can (usually) change the settings. I would uninstall the audio/graphics drivers and reinstall.

 

[Farfisa]

That scale is not likely linear but equipment changes can change settings. Also OS updates and driver updates can (usually) change the settings. I would uninstall the audio/graphics drivers and reinstall.

Thanks for your answer,
I already uninstalled the audio drivers (Realtek) and reinstalled them. By graphics drivers, do you mean like the Nvidia things?

 

[GearUp]

The Realtek drivers will only be used when the graphics output is from the motherboard or when using a motherboard output such as optical (Toslink) for audio like I do, or desktop speakers. A TV or monitor with speakers like yours will use the NVidia drivers. Receivers using HDMI input will also.
The first Microsoft graphics update is required for setting functions like sleep until a graphics card driver is installed. Since most card updates address game specific issues I update that seldom but I still don't get around to trying to equalize all levels. The default sound device will have its own volume control but others can be added. My media PC has the volume maximized at this time but the other receiver functions have significantly different levels. The TV and receiver have their own volume controls.

The short answer is I find that midway is a typical setting for volume. Once the NVidia audio driver is installed that may change. I'd like to see a detailed procedure myself but as long as there is room for adjustment I don't bother.