Why does my media card eject when my screensaver comes on?

[iMore Question]

why does my media card eject when my screensaver comes on

Every time my screen saver comes on my media card that is inserted is no longer accessible unless i pull it out and put it back in or restart the cpu...is there a setting I can change to prevent this?

 

[Just_Me_D]

Re: why does my media card eject when my screensaver comes on

I don't know. What type of device are you using?

 

[514berry]

Re: why does my media card eject when my screensaver comes on

2015 macbook pro retina

I keep the media card plugged in constantly, when my computer locks because I'm not using it and I unlock it it says the media card was ejected. I find it very strange but maybe there is a setting for this?