# 'No input source set' on a machine without media devices

**URL:** <https://openvidu.discourse.group/t/no-input-source-set-on-a-machine-without-media-devices/1133>\
**Category:** Issues developing apps\
**Tags:** v2\
**Created:** [June 9, 2020, 2:55pm UTC](https://openvidu.discourse.group/t/no-input-source-set-on-a-machine-without-media-devices/1133 "2020-06-09T14:55:23Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![ameotoko](https://yyz2.discourse-cdn.com/free1/user_avatar/openvidu.discourse.group/ameotoko/32/573_2.png) [@ameotoko](https://openvidu.discourse.group/u/ameotoko)\
**Post date:** [June 9, 2020, 2:55pm UTC](https://openvidu.discourse.group/t/no-input-source-set-on-a-machine-without-media-devices/1133/1 "2020-06-09T14:55:23Z")

</div>

Hi guys,

I read in 2.14.0 changelog, that

> Join a session without media devices: OpenVidu Call didn’t allow users join a session if they didn’t have a working camera and microphone. This proved to be too restrictive, so now users without media devices can still join a session to at least see and hear other participants.

but when I join a room without having camera and microphone, I get error:

> NO INPUT SOURCE SET  
> No video or audio devices have been found. Please, connect at least one.

What do I miss?

---

<div class="post-metadata">

**Author:** ![CSantosM](https://yyz2.discourse-cdn.com/free1/user_avatar/openvidu.discourse.group/csantosm/32/16_2.png) [@CSantosM](https://openvidu.discourse.group/u/CSantosM)\
**Post date:** [June 9, 2020, 3:44pm UTC](https://openvidu.discourse.group/t/no-input-source-set-on-a-machine-without-media-devices/1133/2 "2020-06-09T15:44:15Z")

</div>

You need at least one device (video or audio) to start a call.  
Maybe the changelog notes is a little bit confuse. It’s talking about old OpenVidu call versions didn’t allow join into room without camera and mic. Now you can join just with a camera or only with a mic, but it needs at least one media device.

---

<div class="post-metadata">

**Author:** ![ameotoko](https://yyz2.discourse-cdn.com/free1/user_avatar/openvidu.discourse.group/ameotoko/32/573_2.png) [@ameotoko](https://openvidu.discourse.group/u/ameotoko)\
**Post date:** [June 9, 2020, 4:15pm UTC](https://openvidu.discourse.group/t/no-input-source-set-on-a-machine-without-media-devices/1133/3 "2020-06-09T16:15:55Z")

</div>

Ah, I see, so it rather means “users without one of the media devices”. Thanks for clarification!