# Fixed: CRITICAL : For some reason screen share (stream with video) doesn't works on chrome 57 version

**URL:** <https://discourse.lynckia.com/t/fixed-critical-for-some-reason-screen-share-stream-with-video-doesnt-works-on-chrome-57-version/445>\
**Category:** Support\
**Created:** [April 5, 2017, 3:57pm UTC](https://discourse.lynckia.com/t/fixed-critical-for-some-reason-screen-share-stream-with-video-doesnt-works-on-chrome-57-version/445 "2017-04-05T15:57:27Z")\
**Posts on this page:** 17\
**Page:** 1

<div class="post-metadata">

**Author:** ![HemanthAnakapalle](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.lynckia.com/hemanthanakapalle/32/144_2.png) [@HemanthAnakapalle](https://discourse.lynckia.com/u/HemanthAnakapalle)\
**Post date:** [April 5, 2017, 3:57pm UTC](https://discourse.lynckia.com/t/fixed-critical-for-some-reason-screen-share-stream-with-video-doesnt-works-on-chrome-57-version/445/1 "2017-04-05T15:57:27Z")

</div>

For some reason, screen share doesn’t works on chrome 57 version.  
Note: It works on chrome till 56 version. And it works on Firefox.

And what I notice is stream with video is not working.  
Is there any specific reasons for this failure?

Thanks & Regards,  
Hemanth

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<div class="post-metadata">

**Author:** ![HemanthAnakapalle](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.lynckia.com/hemanthanakapalle/32/144_2.png) [@HemanthAnakapalle](https://discourse.lynckia.com/u/HemanthAnakapalle)\
**Post date:** [April 6, 2017, 12:04pm UTC](https://discourse.lynckia.com/t/fixed-critical-for-some-reason-screen-share-stream-with-video-doesnt-works-on-chrome-57-version/445/2 "2017-04-06T12:04:49Z")

</div>

On chrome 57 version:

1. I can notice … chrome extension is proving the screen video properly.
2. I played on local side just before publishing … it is fine.
3. I recorded the screen share stream … it is fine at licode side.

But what i notice is … content is not coming from licode during subscription.

NOTE: All events are proper, problem is with the stream content.  
I added a “poster” for the video tag, where it is shown forever, which means there is no enough content to display the video.

Any guidance to fix this issue?

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<div class="post-metadata">

**Author:** ![pedro](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.lynckia.com/pedro/32/24_2.png) [@pedro](https://discourse.lynckia.com/u/pedro)\
**Post date:** [April 7, 2017, 10:55am UTC](https://discourse.lynckia.com/t/fixed-critical-for-some-reason-screen-share-stream-with-video-doesnt-works-on-chrome-57-version/445/3 "2017-04-07T10:55:33Z")

</div>

What OS are you running the Chrome in?  
Do normal streams (not screensharing) work?  
When did you last update Licode?  
You can take a look at chrome://webrtc-internals and see if the connection is actually established and data is coming through.  
We use screensharing every day and we’ve found no issues with Chrome 56 and 57. Admittedly, we use Mac and Ubuntu most of the time.

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<div class="post-metadata">

**Author:** ![HemanthAnakapalle](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.lynckia.com/hemanthanakapalle/32/144_2.png) [@HemanthAnakapalle](https://discourse.lynckia.com/u/HemanthAnakapalle)\
**Post date:** [April 7, 2017, 11:14am UTC](https://discourse.lynckia.com/t/fixed-critical-for-some-reason-screen-share-stream-with-video-doesnt-works-on-chrome-57-version/445/4 "2017-04-07T11:14:36Z")

</div>

Please find my responses inline.

What OS are you running the Chrome in?  
**OS : windows 7 64-bit**

Do normal streams (not screensharing) work?  
**Yes … All audio streams are working fine.**

When did you last update Licode?  
**About a week back**

You can take a look at chrome://webrtc-internals and see if the connection is actually established and data is coming through.  
**seems like data is not coming**

**SDP**  
**Local SDP**

**v=0**

**o=mozilla…THIS\_IS\_SDPARTA-52.0.2 6164186116009841572 0 IN IP4 0.0.0.0**

**s=-**

**t=0 0**

**a=sendrecv**

**a=fingerprint:sha-256 17:5A:4E:81:02:0F:BA:E1:A3:6D:2B:E1:B2:C3:2A:4A:1F:63:69:66:CF:B8:9B:FB:83:64:AE:49:BA:60:B9:9D**

**a=ice-options:trickle**

\*\*a=msid-semantic:WMS \*\*\*

**m=video 27374 UDP/TLS/RTP/SAVPF 120 121 126 97**

**c=IN IP4 182.72.141.194**

**a=candidate:0 1 UDP 2122252543 172.16.7.38 50803 typ host**

**a=candidate:0 2 UDP 2122252542 172.16.7.38 50804 typ host**

**a=candidate:1 1 UDP 1686052863 182.72.141.194 27374 typ srflx raddr 172.16.7.38 rport 50803**

**a=candidate:1 2 UDP 1686052862 182.72.141.194 45030 typ srflx raddr 172.16.7.38 rport 50804**

**a=recvonly**

**a=end-of-candidates**

**a=fmtp:120 max-fs=12288;max-fr=60**

**a=fmtp:121 max-fs=12288;max-fr=60**

**a=fmtp:126 profile-level-id=42e01f;level-asymmetry-allowed=1;packetization-mode=1**

**a=fmtp:97 profile-level-id=42e01f;level-asymmetry-allowed=1**

**a=ice-pwd:ad3487da3289fbbf89359c5be540510d**

**a=ice-ufrag:92646982**

**a=mid:sdparta\_0**

**a=rtcp-fb:120 nack**

**a=rtcp-fb:120 nack pli**

**a=rtcp-fb:120 ccm fir**

**a=rtcp-fb:120 goog-remb**

**a=rtcp-fb:121 nack**

**a=rtcp-fb:121 nack pli**

**a=rtcp-fb:121 ccm fir**

**a=rtcp-fb:121 goog-remb**

**a=rtcp-fb:126 nack**

**a=rtcp-fb:126 nack pli**

**a=rtcp-fb:126 ccm fir**

**a=rtcp-fb:126 goog-remb**

**a=rtcp-fb:97 nack**

**a=rtcp-fb:97 nack pli**

**a=rtcp-fb:97 ccm fir**

**a=rtcp-fb:97 goog-remb**

**a=rtcp-mux**

**a=rtpmap:120 VP8/90000**

**a=rtpmap:121 VP9/90000**

**a=rtpmap:126 H264/90000**

**a=rtpmap:97 H264/90000**

**a=setup:actpass**

**a=ssrc:3772648283 cname:{5219eb9a-6eb4-4ad2-b247-87f155b237dd}**

**Remote SDP**

**v=0**

**o=- 0 0 IN IP4 127.0.0.1**

**s=-**

**t=0 0**

**a=sendrecv**

**m=video 1 UDP/TLS/RTP/SAVPF 120**

**c=IN IP4 0.0.0.0**

**a=candidate:1 1 udp 2013266431 172.16.4.100 42903 typ host generation 0**

**a=sendonly**

**a=fingerprint:sha-256 B3:71:58:BB:BA:33:57:5C:CF:1B:11:B0:E4:78:24:52:E1:16:07:80:10:90:C6:11:EF:31:ED:CB:90:4D:82:46**

**a=ice-pwd:pAvQ32bSmdx4/xyPpT/dF6**

**a=ice-ufrag:AYR5**

**a=rtcp:1 IN IP4 0.0.0.0**

**a=rtcp-fb:120 nack**

**a=rtcp-fb:120 nack pli**

**a=rtcp-fb:120 ccm fir**

**a=rtcp-fb:120 goog-remb**

**a=rtcp-mux**

**a=rtpmap:120 VP8/90000**

**a=ssrc:2357700714 cname:o/i14u9pJrxRKAsu**

**a=ssrc:2357700714 msid:Jz4U1p6Nmw v0**

**a=ssrc:2357700714 mslabel:Jz4U1p6Nmw**

**a=ssrc:2357700714 label:Jz4U1p6Nmwv0**

**RTP Stats**  
**inbound\_rtp\_video\_0**

**Local: 16:35:02 GMT+0530 (India Standard Time) inboundrtp SSRC: 0**

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<div class="post-metadata">

**Author:** ![HemanthAnakapalle](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.lynckia.com/hemanthanakapalle/32/144_2.png) [@HemanthAnakapalle](https://discourse.lynckia.com/u/HemanthAnakapalle)\
**Post date:** [April 7, 2017, 11:17am UTC](https://discourse.lynckia.com/t/fixed-critical-for-some-reason-screen-share-stream-with-video-doesnt-works-on-chrome-57-version/445/5 "2017-04-07T11:17:52Z")

</div>

NOTE:

Till Chrome 56 version, everything is absolutely fine.  
It git broke from 57 version.  
(Same issue for both video and screenshare streams)

And in firefox, everything is working fine.

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<div class="post-metadata">

**Author:** ![HemanthAnakapalle](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.lynckia.com/hemanthanakapalle/32/144_2.png) [@HemanthAnakapalle](https://discourse.lynckia.com/u/HemanthAnakapalle)\
**Post date:** [April 7, 2017, 11:25am UTC](https://discourse.lynckia.com/t/fixed-critical-for-some-reason-screen-share-stream-with-video-doesnt-works-on-chrome-57-version/445/6 "2017-04-07T11:25:46Z")

</div>

# Check these stats Pedro:

RTP Stats  
inbound\_rtp\_video\_0

Local: 16:55:10 GMT+0530 (India Standard Time) inboundrtp SSRC: 0 Received: 4474 packets (3588.60 Kb) Lost: undefined Jitter: undefined

---

<div class="post-metadata">

**Author:** ![pedro](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.lynckia.com/pedro/32/24_2.png) [@pedro](https://discourse.lynckia.com/u/pedro)\
**Post date:** [April 7, 2017, 1:23pm UTC](https://discourse.lynckia.com/t/fixed-critical-for-some-reason-screen-share-stream-with-video-doesnt-works-on-chrome-57-version/445/7 "2017-04-07T13:23:24Z")

</div>

That’s a Firefox SDP.  
Are you subscribing to the screensharing stream with Firefox? Does it work with Chrome?

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<div class="post-metadata">

**Author:** ![HemanthAnakapalle](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.lynckia.com/hemanthanakapalle/32/144_2.png) [@HemanthAnakapalle](https://discourse.lynckia.com/u/HemanthAnakapalle)\
**Post date:** [April 7, 2017, 1:34pm UTC](https://discourse.lynckia.com/t/fixed-critical-for-some-reason-screen-share-stream-with-video-doesnt-works-on-chrome-57-version/445/8 "2017-04-07T13:34:41Z")

</div>

**Case1 - Not working**

Attendee 1 - Chrome 57 version - I am publishing the video/screenshare stream.

Attendee 2 - Chrome (or) firefox any version subscribing to it … we cannot see the data successfully on stream.

==========================================================================

**Case 2 - Working**

Attendee 1 - Chrome (Apart from 57 version) (or) firefox any version … publish video/screenshare stream.

Attendee 2 - Chrome (or) firefox any version subscribing to it … it works like charm.

====================================================

**Conclusion**  
Video/Screen share published from chrome 57 version has a problem at subscriber side.

I hope information is clear.  
In case of any further information needed, please ask.

---

<div class="post-metadata">

**Author:** ![HemanthAnakapalle](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.lynckia.com/hemanthanakapalle/32/144_2.png) [@HemanthAnakapalle](https://discourse.lynckia.com/u/HemanthAnakapalle)\
**Post date:** [April 7, 2017, 1:58pm UTC](https://discourse.lynckia.com/t/fixed-critical-for-some-reason-screen-share-stream-with-video-doesnt-works-on-chrome-57-version/445/9 "2017-04-07T13:58:52Z")

</div>

# Working Case SDP Stats on Chrome:

ssrc\_1548528521\_recv (ssrc)  
Statistics ssrc\_1548528521\_recv

cname:o/i14u9pJrxRKAsu  
msid:NiWoM2ssrH v0  
mslabel:NiWoM2ssrH  
label:NiWoM2ssrHv0  
timestamp 4/7/2017, 7:22:44 PM  
bytesReceived 14877030  
**codecImplementationName libvpx**  
framesDecoded 2949  
mediaType video  
packetsLost 0  
packetsReceived 14173  
ssrc 1548528521  
transportId Channel-video-1  
googCaptureStartNtpTimeMs 0  
googCodecName VP8  
googCurrentDelayMs 73  
googDecodeMs 2  
googFirsSent 0  
googFrameHeightReceived 480  
googFrameRateDecoded 30  
googFrameRateOutput 30  
googFrameRateReceived 30  
googFrameWidthReceived 640  
googJitterBufferMs 59  
googMaxDecodeMs 4  
googMinPlayoutDelayMs 0  
googNacksSent 0  
googPlisSent 1  
googRenderDelayMs 10  
googTargetDelayMs 73  
googTrackId v0

# Non working Case SDP Stats on Chrome:

ssrc\_3468354236\_recv (ssrc)  
Statistics ssrc\_3468354236\_recv

cname:o/i14u9pJrxRKAsu  
msid:ipTWT6bZE2 v0  
mslabel:ipTWT6bZE2  
label:ipTWT6bZE2v0  
timestamp 4/7/2017, 7:26:34 PM  
bytesReceived 0  
**codecImplementationName unknown**  
framesDecoded 0  
mediaType video  
packetsLost 0  
packetsReceived 0  
ssrc 3468354236  
transportId Channel-video-1  
googCaptureStartNtpTimeMs 0  
googCodecName   
googCurrentDelayMs 0  
googDecodeMs 0  
googFirsSent 0  
googFrameHeightReceived 0  
googFrameRateDecoded 0  
googFrameRateOutput 0  
googFrameRateReceived 0  
googFrameWidthReceived 0  
googJitterBufferMs 0  
googMaxDecodeMs 0  
googMinPlayoutDelayMs 0  
googNacksSent 0  
googPlisSent 0  
googRenderDelayMs 10  
googTargetDelayMs 0  
googTrackId v0

**“codecImplementationName” is unknown in non working and almost rest all parameters are with 0.**

---

<div class="post-metadata">

**Author:** ![Francesco\_Durighetto](https://avatars.discourse-cdn.com/v4/letter/f/a9a28c/32.png) [@Francesco\_Durighetto](https://discourse.lynckia.com/u/Francesco_Durighetto)\
**Post date:** [April 7, 2017, 3:45pm UTC](https://discourse.lynckia.com/t/fixed-critical-for-some-reason-screen-share-stream-with-video-doesnt-works-on-chrome-57-version/445/10 "2017-04-07T15:45:10Z")

</div>

It rarely happens to me but not only with screenshare.

codecImplementationName unknown and nor video or audio played

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<div class="post-metadata">

**Author:** ![HemanthAnakapalle](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.lynckia.com/hemanthanakapalle/32/144_2.png) [@HemanthAnakapalle](https://discourse.lynckia.com/u/HemanthAnakapalle)\
**Post date:** [April 7, 2017, 4:57pm UTC](https://discourse.lynckia.com/t/fixed-critical-for-some-reason-screen-share-stream-with-video-doesnt-works-on-chrome-57-version/445/11 "2017-04-07T16:57:26Z")

</div>

ok … but it is consistent for me.

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<div class="post-metadata">

**Author:** ![HemanthAnakapalle](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.lynckia.com/hemanthanakapalle/32/144_2.png) [@HemanthAnakapalle](https://discourse.lynckia.com/u/HemanthAnakapalle)\
**Post date:** [April 10, 2017, 6:45am UTC](https://discourse.lynckia.com/t/fixed-critical-for-some-reason-screen-share-stream-with-video-doesnt-works-on-chrome-57-version/445/12 "2017-04-10T06:45:26Z")

</div>

Hi Pedro,

Can you please provide the SDP’s at both publishing and subscribing side on chrome 57 version?  
Will compare and check for some clues.

Thanks,  
Hemanth

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<div class="post-metadata">

**Author:** ![HemanthAnakapalle](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.lynckia.com/hemanthanakapalle/32/144_2.png) [@HemanthAnakapalle](https://discourse.lynckia.com/u/HemanthAnakapalle)\
**Post date:** [April 10, 2017, 6:58am UTC](https://discourse.lynckia.com/t/fixed-critical-for-some-reason-screen-share-stream-with-video-doesnt-works-on-chrome-57-version/445/13 "2017-04-10T06:58:08Z")

</div>

Hi Pedro,

I tested screen share on different licode instances with following commit hash codes, where I am seeing the stated issue.

Instance 1 : **8a059671c5caade5f80918e29a6a7a12c76fac63** (Tue Jul 26 16:08:46 2016 +0200)  
Instance 2 : **de95e07637140ac199b1fc086b592350a47b5226** (Wed Mar 8 09:33:14 2017 +0100)

Can you test on these 2 commit hash codes and confirm the working status?

Thanks,  
Hemanth

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<div class="post-metadata">

**Author:** ![HemanthAnakapalle](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.lynckia.com/hemanthanakapalle/32/144_2.png) [@HemanthAnakapalle](https://discourse.lynckia.com/u/HemanthAnakapalle)\
**Post date:** [April 12, 2017, 12:25pm UTC](https://discourse.lynckia.com/t/fixed-critical-for-some-reason-screen-share-stream-with-video-doesnt-works-on-chrome-57-version/445/14 "2017-04-12T12:25:59Z")

</div>

Hi Pedro,

With latest licode, we are able to do screen share and video calls over local instance.  
It is working fine.

But over amazon cloud instance, we are seeing below issue:  
**ERROR: RoomController - message: ErizoJS timed out will be removed, erizoId: af220848-88f0-18d3-8d17-367082c63bf2, publishersAffected: 1**

Thanks,  
Hemanth

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<div class="post-metadata">

**Author:** ![HemanthAnakapalle](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.lynckia.com/hemanthanakapalle/32/144_2.png) [@HemanthAnakapalle](https://discourse.lynckia.com/u/HemanthAnakapalle)\
**Post date:** [April 12, 2017, 12:28pm UTC](https://discourse.lynckia.com/t/fixed-critical-for-some-reason-screen-share-stream-with-video-doesnt-works-on-chrome-57-version/445/15 "2017-04-12T12:28:50Z")

</div>

This is initial log.  
**INFO: EcCloudHandler - message: deleting erizoJS, erizoId: 70f63350-7ced-e36c-b837-7e294c2efc67**

---

<div class="post-metadata">

**Author:** ![steven8274](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.lynckia.com/steven8274/32/70_2.png) [@steven8274](https://discourse.lynckia.com/u/steven8274)\
**Post date:** [April 14, 2017, 9:53am UTC](https://discourse.lynckia.com/t/fixed-critical-for-some-reason-screen-share-stream-with-video-doesnt-works-on-chrome-57-version/445/16 "2017-04-14T09:53:56Z")

</div>

I have never used ‘amazon cloud’, so I can’t give you any suggestion in detail ☹

---

<div class="post-metadata">

**Author:** ![HemanthAnakapalle](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.lynckia.com/hemanthanakapalle/32/144_2.png) [@HemanthAnakapalle](https://discourse.lynckia.com/u/HemanthAnakapalle)\
**Post date:** [April 20, 2017, 4:36am UTC](https://discourse.lynckia.com/t/fixed-critical-for-some-reason-screen-share-stream-with-video-doesnt-works-on-chrome-57-version/445/17 "2017-04-20T04:36:38Z")

</div>

Working with below hash code.

commit 0a0ebb1fbf2441427a7aea5fce5a29452f14eff0  
Date: Wed Apr 19 11:28:22 2017 +0200

Thanks,  
Hemanth