Screen sharing not working on mac, bbb-1.1
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Alexey Sharapov
Apr 16, 2017, 5:32:05 AM4/16/17
to bigbluebutton-users
There is a strange problem with screen sharing with bbb-1.1 on mac.
When I try to start screen sharing I get jnlp, run it, get java application running (icon in menu bar, blue rectangle around screen and window from application that screen sharing is working), but main bbb flash application in browser does not detect this java application, and after some time times out with "unable to detect screen sharing".
Tried on two different macs (both with osx 1.7.5), with two different java versions (latest one and not so latest), and 3 different browsers (firefox, safari and chrome). Problem is completely the same.
At the same time bbb-1.0 shares screen completely fine on this macs and bbb-1.1 works fine too, if I try to use it from windows.
What can be the problem, how can I debug it? Thanks!
When I try to start screen sharing I get jnlp, run it, get java application running (icon in menu bar, blue rectangle around screen and window from application that screen sharing is working), but main bbb flash application in browser does not detect this java application, and after some time times out with "unable to detect screen sharing".
Tried on two different macs (both with osx 1.7.5), with two different java versions (latest one and not so latest), and 3 different browsers (firefox, safari and chrome). Problem is completely the same.
At the same time bbb-1.0 shares screen completely fine on this macs and bbb-1.1 works fine too, if I try to use it from windows.
What can be the problem, how can I debug it? Thanks!
Fred Dixon
Apr 16, 2017, 6:30:14 AM4/16/17
to BigBlueButton-users
Hi Alexey,
We put together a video to show how Screen Sharing works on BigBlueButton 1.1 for the Mac, see
You need to have Java installed for it to work. Try referencing the above video, check that Java is installed (you should find in in the System Preferences), and let us know if the above gets you working.
Regards,... Fred
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Alexey Sharapov
Apr 16, 2017, 6:43:19 AM4/16/17
to bigbluebutton-users
Of course I have java installed!
As I have written in the original message, I tried with two different java versions (most current and a bit older one), and that java applet is actually running, the problem is only with bbb flash client detecting it.
Also, java applet in bbb-1.0 works fine (as much as I already understand - in 1.0 it is npapi vs external applet in 1.1).
I am a software developer myself, so I can debug the problem better than "please install java" :) Thanks for the answer, anyways!
воскресенье, 16 апреля 2017 г., 13:30:14 UTC+3 пользователь Fred Dixon написал:
As I have written in the original message, I tried with two different java versions (most current and a bit older one), and that java applet is actually running, the problem is only with bbb flash client detecting it.
Also, java applet in bbb-1.0 works fine (as much as I already understand - in 1.0 it is npapi vs external applet in 1.1).
I am a software developer myself, so I can debug the problem better than "please install java" :) Thanks for the answer, anyways!
воскресенье, 16 апреля 2017 г., 13:30:14 UTC+3 пользователь Fred Dixon написал:
Hi Alexey,We put together a video to show how Screen Sharing works on BigBlueButton 1.1 for the Mac, seeYou need to have Java installed for it to work. Try referencing the above video, check that Java is installed (you should find in in the System Preferences), and let us know if the above gets you working.Regards,... Fred
On Sun, Apr 16, 2017 at 10:32 AM, Alexey Sharapov <nek...@gmail.com> wrote:
There is a strange problem with screen sharing with bbb-1.1 on mac.
When I try to start screen sharing I get jnlp, run it, get java application running (icon in menu bar, blue rectangle around screen and window from application that screen sharing is working), but main bbb flash application in browser does not detect this java application, and after some time times out with "unable to detect screen sharing".
Tried on two different macs (both with osx 1.7.5), with two different java versions (latest one and not so latest), and 3 different browsers (firefox, safari and chrome). Problem is completely the same.
At the same time bbb-1.0 shares screen completely fine on this macs and bbb-1.1 works fine too, if I try to use it from windows.
What can be the problem, how can I debug it? Thanks!
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Fred Dixon
Apr 16, 2017, 6:47:24 AM4/16/17
to bigbluebu...@googlegroups.com
Hi Alexey,
Got it. Enable the Java console and then copy and paste what you are getting to this thread.
Regards,... Fred
On Sun, Apr 16, 2017 at 11:43 AM Alexey Sharapov <nek...@gmail.com> wrote:
Of course I have java installed!
As I have written in the original message, I tried with two different java versions (most current and a bit older one), and that java applet is actually running, the problem is only with bbb flash client detecting it.
Also, java applet in bbb-1.0 works fine (as much as I already understand - in 1.0 it is npapi vs external applet in 1.1).
I am a software developer myself, so I can debug the problem better than "please install java" :) Thanks for the answer, anyways!
воскресенье, 16 апреля 2017 г., 13:30:14 UTC+3 пользователь Fred Dixon написал:Hi Alexey,We put together a video to show how Screen Sharing works on BigBlueButton 1.1 for the Mac, seeYou need to have Java installed for it to work. Try referencing the above video, check that Java is installed (you should find in in the System Preferences), and let us know if the above gets you working.Regards,... FredOn Sun, Apr 16, 2017 at 10:32 AM, Alexey Sharapov <nek...@gmail.com> wrote:There is a strange problem with screen sharing with bbb-1.1 on mac.
When I try to start screen sharing I get jnlp, run it, get java application running (icon in menu bar, blue rectangle around screen and window from application that screen sharing is working), but main bbb flash application in browser does not detect this java application, and after some time times out with "unable to detect screen sharing".
Tried on two different macs (both with osx 1.7.5), with two different java versions (latest one and not so latest), and 3 different browsers (firefox, safari and chrome). Problem is completely the same.
At the same time bbb-1.0 shares screen completely fine on this macs and bbb-1.1 works fine too, if I try to use it from windows.
What can be the problem, how can I debug it? Thanks!
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Alexey Sharapov
Apr 16, 2017, 6:59:26 AM4/16/17
to bigbluebutton-users
Yes, seems there is an exception going on.
Java Web Start 11.121.2.13 x86_64
Using JRE version 1.8.0_121-b13 Java HotSpot(TM) 64-Bit Server VM
User home directory = /Users/nekoth
----------------------------------------------------
c: clear console window
f: finalize objects on finalization queue
g: garbage collect
h: display this help message
m: print memory usage
o: trigger logging
p: reload proxy configuration
q: hide console
r: reload policy configuration
s: dump system and deployment properties
t: dump thread list
v: dump thread stack
0-5: set trace level to <n>
----------------------------------------------------
Using passed args: length=[9]
Using passed args: [rtmp://demo.bigbluebutton.org/screenshare/17c64a84f6c6d8e3bd5d11fadf02601731107ada-1492340007867] meetingId=[17c64a84f6c6d8e3bd5d11fadf02601731107ada-1492340007867] streamId=[17c64a84f6c6d8e3bd5d11fadf02601731107ada-1492340007867-1492340241383-1] captureFullScreen=true
========== SYSTEM PROPERTIES ================
Java temp dir : /var/folders/gh/gd8zrncn7fqgt2j4fr80kqh80000gn/T/
Java name : Java HotSpot(TM) 64-Bit Server VM
OS name : Mac OS X
OS arch : x86_64
JNA Path : null
========== END SYSTEM PROPERTIES ================
org.bytedeco.javacpp.logger.debug : true
Sharing full screen.
Check for scaling[1920,1080][800,600]
ScreenShareInfo[captureWidth=1920,captureHeight=1080][0,0][scaleWidth=800,scaleHeight=600]
DESKSHARECLIENT: Sharing full screen.
ScreenSharerRunner[captureWidth=1920,captureHeight=1080][0,0][scaleWidth=800,scaleHeight=600]
Waiting for trigger to Stop client.
sendUpdateMessage sharingStart = [START]
SCREENREGIONSHARER: starting. StreamId=17c64a84f6c6d8e3bd5d11fadf02601731107ada-1492340007867-1492340241383-1 fullScreen=true
SCREENREGIONSHARER: Launching Screen Capture Frame
SCREENREGIONSHARER: - Launching Screen Capture Frame:: x=0,y=0,w=1920,h=1080
SCREENREGIONSHARER: Starting Screen Capture Frame. StreamId=17c64a84f6c6d8e3bd5d11fadf02601731107ada-1492340007867-1492340241383-1 fullScreen=true
Loading start time: 2017.04.16 н.э. at 13:57:42 MSK
Hiding controls ......................
Loading end time: 2017.04.16 н.э. at 13:57:43 MSK
CaptureRegionFrame - startCapture:: Change border to blue
SCREENREGIONSHARER: - onStartCapture x=0,y=0,w=1920,h=1080
Publishing stream [17c64a84f6c6d8e3bd5d11fadf02601731107ada-1492340007867-1492340241383-1] to rtmp://demo.bigbluebutton.org/screenshare/17c64a84f6c6d8e3bd5d11fadf02601731107ada-1492340007867/17c64a84f6c6d8e3bd5d11fadf02601731107ada-1492340007867-1492340241383-1
Java temp dir : /var/folders/gh/gd8zrncn7fqgt2j4fr80kqh80000gn/T/
Java name : Java HotSpot(TM) 64-Bit Server VM
OS name : Mac OS X
OS arch : x86_64
JNA Path : null
Platform : macosx-x86_64
Platform lib path: /Users/nekoth/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.
Capturing w=[1910] h=[1070] at x=[5] y=[5]
URL=rtmp://demo.bigbluebutton.org/screenshare/17c64a84f6c6d8e3bd5d11fadf02601731107ada-1492340007867
useH264=false
CODEC_OPTS=crf=38&preset=veryfast&tune=zerolatency&frameRate=5.0&keyFrameInterval=5
OPTION: crf=38
OPTION: preset=veryfast
OPTION: tune=zerolatency
OPTION: frameRate=5.0
OPTION: keyFrameInterval=5
Setting up grabber for macosx.
input:Capture screen 0:none videoSize:1910x1070
JNLPClassLoader: Finding library libjniavutil.dylib
Exception in thread "pool-3-thread-1" java.lang.NoClassDefFoundError: Could not initialize class org.bytedeco.javacpp.avutil
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)
at org.bytedeco.javacpp.Loader.load(Loader.java:471)
at org.bytedeco.javacpp.Loader.load(Loader.java:413)
at org.bytedeco.javacpp.avcodec$AVPacket.<clinit>(avcodec.java:1559)
at org.bytedeco.javacv.FFmpegFrameRecorder.<init>(FFmpegFrameRecorder.java:118)
at org.bytedeco.javacv.FFmpegFrameRecorder.<init>(FFmpegFrameRecorder.java:95)
at org.bigbluebutton.screenshare.client.javacv.FfmpegScreenshare.setupMacOsXRecorder(FfmpegScreenshare.java:366)
at org.bigbluebutton.screenshare.client.javacv.FfmpegScreenshare.go(FfmpegScreenshare.java:97)
at org.bigbluebutton.screenshare.client.ScreenSharerRunner.startSharing(ScreenSharerRunner.java:61)
at org.bigbluebutton.screenshare.client.ScreenRegionSharer$CaptureRegionListenerImp.onStartCapture(ScreenRegionSharer.java:152)
at org.bigbluebutton.screenshare.client.frame.CaptureRegionFrame.startCapture(CaptureRegionFrame.java:171)
at org.bigbluebutton.screenshare.client.frame.CaptureRegionFrame.start(CaptureRegionFrame.java:78)
at org.bigbluebutton.screenshare.client.ScreenRegionSharer.start(ScreenRegionSharer.java:73)
at org.bigbluebutton.screenshare.client.ScreenRegionSharer.networkConnectionException(ScreenRegionSharer.java:122)
at org.bigbluebutton.screenshare.client.net.NetworkStreamSender.notifyNetworkConnectionListener(NetworkStreamSender.java:54)
at org.bigbluebutton.screenshare.client.net.NetworkStreamSender.networkException(NetworkStreamSender.java:104)
at org.bigbluebutton.screenshare.client.net.NetworkHttpStreamSender.notifyNetworkStreamListener(NetworkHttpStreamSender.java:68)
at org.bigbluebutton.screenshare.client.net.NetworkHttpStreamSender.sendUpdateMessage(NetworkHttpStreamSender.java:240)
at org.bigbluebutton.screenshare.client.net.NetworkHttpStreamSender.sendMessageToServer(NetworkHttpStreamSender.java:103)
at org.bigbluebutton.screenshare.client.net.NetworkHttpStreamSender.access$200(NetworkHttpStreamSender.java:36)
at org.bigbluebutton.screenshare.client.net.NetworkHttpStreamSender$1.run(NetworkHttpStreamSender.java:89)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
воскресенье, 16 апреля 2017 г., 13:47:24 UTC+3 пользователь Fred Dixon написал:
Java Web Start 11.121.2.13 x86_64
Using JRE version 1.8.0_121-b13 Java HotSpot(TM) 64-Bit Server VM
User home directory = /Users/nekoth
----------------------------------------------------
c: clear console window
f: finalize objects on finalization queue
g: garbage collect
h: display this help message
m: print memory usage
o: trigger logging
p: reload proxy configuration
q: hide console
r: reload policy configuration
s: dump system and deployment properties
t: dump thread list
v: dump thread stack
0-5: set trace level to <n>
----------------------------------------------------
Using passed args: length=[9]
Using passed args: [rtmp://demo.bigbluebutton.org/screenshare/17c64a84f6c6d8e3bd5d11fadf02601731107ada-1492340007867] meetingId=[17c64a84f6c6d8e3bd5d11fadf02601731107ada-1492340007867] streamId=[17c64a84f6c6d8e3bd5d11fadf02601731107ada-1492340007867-1492340241383-1] captureFullScreen=true
========== SYSTEM PROPERTIES ================
Java temp dir : /var/folders/gh/gd8zrncn7fqgt2j4fr80kqh80000gn/T/
Java name : Java HotSpot(TM) 64-Bit Server VM
OS name : Mac OS X
OS arch : x86_64
JNA Path : null
========== END SYSTEM PROPERTIES ================
org.bytedeco.javacpp.logger.debug : true
Sharing full screen.
Check for scaling[1920,1080][800,600]
ScreenShareInfo[captureWidth=1920,captureHeight=1080][0,0][scaleWidth=800,scaleHeight=600]
DESKSHARECLIENT: Sharing full screen.
ScreenSharerRunner[captureWidth=1920,captureHeight=1080][0,0][scaleWidth=800,scaleHeight=600]
Waiting for trigger to Stop client.
sendUpdateMessage sharingStart = [START]
SCREENREGIONSHARER: starting. StreamId=17c64a84f6c6d8e3bd5d11fadf02601731107ada-1492340007867-1492340241383-1 fullScreen=true
SCREENREGIONSHARER: Launching Screen Capture Frame
SCREENREGIONSHARER: - Launching Screen Capture Frame:: x=0,y=0,w=1920,h=1080
SCREENREGIONSHARER: Starting Screen Capture Frame. StreamId=17c64a84f6c6d8e3bd5d11fadf02601731107ada-1492340007867-1492340241383-1 fullScreen=true
Loading start time: 2017.04.16 н.э. at 13:57:42 MSK
Hiding controls ......................
Loading end time: 2017.04.16 н.э. at 13:57:43 MSK
CaptureRegionFrame - startCapture:: Change border to blue
SCREENREGIONSHARER: - onStartCapture x=0,y=0,w=1920,h=1080
Publishing stream [17c64a84f6c6d8e3bd5d11fadf02601731107ada-1492340007867-1492340241383-1] to rtmp://demo.bigbluebutton.org/screenshare/17c64a84f6c6d8e3bd5d11fadf02601731107ada-1492340007867/17c64a84f6c6d8e3bd5d11fadf02601731107ada-1492340007867-1492340241383-1
Java temp dir : /var/folders/gh/gd8zrncn7fqgt2j4fr80kqh80000gn/T/
Java name : Java HotSpot(TM) 64-Bit Server VM
OS name : Mac OS X
OS arch : x86_64
JNA Path : null
Platform : macosx-x86_64
Platform lib path: /Users/nekoth/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.
Capturing w=[1910] h=[1070] at x=[5] y=[5]
URL=rtmp://demo.bigbluebutton.org/screenshare/17c64a84f6c6d8e3bd5d11fadf02601731107ada-1492340007867
useH264=false
CODEC_OPTS=crf=38&preset=veryfast&tune=zerolatency&frameRate=5.0&keyFrameInterval=5
OPTION: crf=38
OPTION: preset=veryfast
OPTION: tune=zerolatency
OPTION: frameRate=5.0
OPTION: keyFrameInterval=5
Setting up grabber for macosx.
input:Capture screen 0:none videoSize:1910x1070
JNLPClassLoader: Finding library libjniavutil.dylib
Exception in thread "pool-3-thread-1" java.lang.NoClassDefFoundError: Could not initialize class org.bytedeco.javacpp.avutil
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)
at org.bytedeco.javacpp.Loader.load(Loader.java:471)
at org.bytedeco.javacpp.Loader.load(Loader.java:413)
at org.bytedeco.javacpp.avcodec$AVPacket.<clinit>(avcodec.java:1559)
at org.bytedeco.javacv.FFmpegFrameRecorder.<init>(FFmpegFrameRecorder.java:118)
at org.bytedeco.javacv.FFmpegFrameRecorder.<init>(FFmpegFrameRecorder.java:95)
at org.bigbluebutton.screenshare.client.javacv.FfmpegScreenshare.setupMacOsXRecorder(FfmpegScreenshare.java:366)
at org.bigbluebutton.screenshare.client.javacv.FfmpegScreenshare.go(FfmpegScreenshare.java:97)
at org.bigbluebutton.screenshare.client.ScreenSharerRunner.startSharing(ScreenSharerRunner.java:61)
at org.bigbluebutton.screenshare.client.ScreenRegionSharer$CaptureRegionListenerImp.onStartCapture(ScreenRegionSharer.java:152)
at org.bigbluebutton.screenshare.client.frame.CaptureRegionFrame.startCapture(CaptureRegionFrame.java:171)
at org.bigbluebutton.screenshare.client.frame.CaptureRegionFrame.start(CaptureRegionFrame.java:78)
at org.bigbluebutton.screenshare.client.ScreenRegionSharer.start(ScreenRegionSharer.java:73)
at org.bigbluebutton.screenshare.client.ScreenRegionSharer.networkConnectionException(ScreenRegionSharer.java:122)
at org.bigbluebutton.screenshare.client.net.NetworkStreamSender.notifyNetworkConnectionListener(NetworkStreamSender.java:54)
at org.bigbluebutton.screenshare.client.net.NetworkStreamSender.networkException(NetworkStreamSender.java:104)
at org.bigbluebutton.screenshare.client.net.NetworkHttpStreamSender.notifyNetworkStreamListener(NetworkHttpStreamSender.java:68)
at org.bigbluebutton.screenshare.client.net.NetworkHttpStreamSender.sendUpdateMessage(NetworkHttpStreamSender.java:240)
at org.bigbluebutton.screenshare.client.net.NetworkHttpStreamSender.sendMessageToServer(NetworkHttpStreamSender.java:103)
at org.bigbluebutton.screenshare.client.net.NetworkHttpStreamSender.access$200(NetworkHttpStreamSender.java:36)
at org.bigbluebutton.screenshare.client.net.NetworkHttpStreamSender$1.run(NetworkHttpStreamSender.java:89)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
воскресенье, 16 апреля 2017 г., 13:47:24 UTC+3 пользователь Fred Dixon написал:
Hi Alexey,Got it. Enable the Java console and then copy and paste what you are getting to this thread.Regards,... Fred
On Sun, Apr 16, 2017 at 11:43 AM Alexey Sharapov <nek...@gmail.com> wrote:
Of course I have java installed!
As I have written in the original message, I tried with two different java versions (most current and a bit older one), and that java applet is actually running, the problem is only with bbb flash client detecting it.
Also, java applet in bbb-1.0 works fine (as much as I already understand - in 1.0 it is npapi vs external applet in 1.1).
I am a software developer myself, so I can debug the problem better than "please install java" :) Thanks for the answer, anyways!
воскресенье, 16 апреля 2017 г., 13:30:14 UTC+3 пользователь Fred Dixon написал:Hi Alexey,We put together a video to show how Screen Sharing works on BigBlueButton 1.1 for the Mac, seeYou need to have Java installed for it to work. Try referencing the above video, check that Java is installed (you should find in in the System Preferences), and let us know if the above gets you working.Regards,... FredOn Sun, Apr 16, 2017 at 10:32 AM, Alexey Sharapov <nek...@gmail.com> wrote:There is a strange problem with screen sharing with bbb-1.1 on mac.
When I try to start screen sharing I get jnlp, run it, get java application running (icon in menu bar, blue rectangle around screen and window from application that screen sharing is working), but main bbb flash application in browser does not detect this java application, and after some time times out with "unable to detect screen sharing".
Tried on two different macs (both with osx 1.7.5), with two different java versions (latest one and not so latest), and 3 different browsers (firefox, safari and chrome). Problem is completely the same.
At the same time bbb-1.0 shares screen completely fine on this macs and bbb-1.1 works fine too, if I try to use it from windows.
What can be the problem, how can I debug it? Thanks!
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Alexey Sharapov
Apr 16, 2017, 7:05:35 AM4/16/17
to bigbluebutton-users
The problem may be connected to the fact, that we are using older OSX here (10.7.5, we're unable to update to recent versions due to hardware), so there can be some minor incompatibilities, compared to recent osx versions.
воскресенье, 16 апреля 2017 г., 13:47:24 UTC+3 пользователь Fred Dixon написал:
воскресенье, 16 апреля 2017 г., 13:47:24 UTC+3 пользователь Fred Dixon написал:
Hi Alexey,Got it. Enable the Java console and then copy and paste what you are getting to this thread.Regards,... Fred
On Sun, Apr 16, 2017 at 11:43 AM Alexey Sharapov <nek...@gmail.com> wrote:
Of course I have java installed!
As I have written in the original message, I tried with two different java versions (most current and a bit older one), and that java applet is actually running, the problem is only with bbb flash client detecting it.
Also, java applet in bbb-1.0 works fine (as much as I already understand - in 1.0 it is npapi vs external applet in 1.1).
I am a software developer myself, so I can debug the problem better than "please install java" :) Thanks for the answer, anyways!
воскресенье, 16 апреля 2017 г., 13:30:14 UTC+3 пользователь Fred Dixon написал:Hi Alexey,We put together a video to show how Screen Sharing works on BigBlueButton 1.1 for the Mac, seeYou need to have Java installed for it to work. Try referencing the above video, check that Java is installed (you should find in in the System Preferences), and let us know if the above gets you working.Regards,... FredOn Sun, Apr 16, 2017 at 10:32 AM, Alexey Sharapov <nek...@gmail.com> wrote:There is a strange problem with screen sharing with bbb-1.1 on mac.
When I try to start screen sharing I get jnlp, run it, get java application running (icon in menu bar, blue rectangle around screen and window from application that screen sharing is working), but main bbb flash application in browser does not detect this java application, and after some time times out with "unable to detect screen sharing".
Tried on two different macs (both with osx 1.7.5), with two different java versions (latest one and not so latest), and 3 different browsers (firefox, safari and chrome). Problem is completely the same.
At the same time bbb-1.0 shares screen completely fine on this macs and bbb-1.1 works fine too, if I try to use it from windows.
What can be the problem, how can I debug it? Thanks!
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Alexey Sharapov
Apr 16, 2017, 7:07:55 AM4/16/17
to bigbluebutton-users
Sorry for multiple messages, can't find "edit message" here.
And talking about incompatibilities - 1.0 with npapi works fine on the same osx, so problem should be minor.
воскресенье, 16 апреля 2017 г., 13:47:24 UTC+3 пользователь Fred Dixon написал:
And talking about incompatibilities - 1.0 with npapi works fine on the same osx, so problem should be minor.
воскресенье, 16 апреля 2017 г., 13:47:24 UTC+3 пользователь Fred Dixon написал:
Hi Alexey,Got it. Enable the Java console and then copy and paste what you are getting to this thread.Regards,... Fred
On Sun, Apr 16, 2017 at 11:43 AM Alexey Sharapov <nek...@gmail.com> wrote:
Of course I have java installed!
As I have written in the original message, I tried with two different java versions (most current and a bit older one), and that java applet is actually running, the problem is only with bbb flash client detecting it.
Also, java applet in bbb-1.0 works fine (as much as I already understand - in 1.0 it is npapi vs external applet in 1.1).
I am a software developer myself, so I can debug the problem better than "please install java" :) Thanks for the answer, anyways!
воскресенье, 16 апреля 2017 г., 13:30:14 UTC+3 пользователь Fred Dixon написал:Hi Alexey,We put together a video to show how Screen Sharing works on BigBlueButton 1.1 for the Mac, seeYou need to have Java installed for it to work. Try referencing the above video, check that Java is installed (you should find in in the System Preferences), and let us know if the above gets you working.Regards,... FredOn Sun, Apr 16, 2017 at 10:32 AM, Alexey Sharapov <nek...@gmail.com> wrote:There is a strange problem with screen sharing with bbb-1.1 on mac.
When I try to start screen sharing I get jnlp, run it, get java application running (icon in menu bar, blue rectangle around screen and window from application that screen sharing is working), but main bbb flash application in browser does not detect this java application, and after some time times out with "unable to detect screen sharing".
Tried on two different macs (both with osx 1.7.5), with two different java versions (latest one and not so latest), and 3 different browsers (firefox, safari and chrome). Problem is completely the same.
At the same time bbb-1.0 shares screen completely fine on this macs and bbb-1.1 works fine too, if I try to use it from windows.
What can be the problem, how can I debug it? Thanks!
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Richard Alam
Apr 18, 2017, 12:57:41 PM4/18/17
to bigbluebutton-users
On Sunday, April 16, 2017 at 7:05:35 AM UTC-4, Alexey Sharapov wrote:
The problem may be connected to the fact, that we are using older OSX here (10.7.5, we're unable to update to recent versions due to hardware), so there can be some minor incompatibilities, compared to recent osx versions.
That might be the case.
The issue is that the JWS fails to find/load the native libraries.
Richard
Alexey Sharapov
Apr 18, 2017, 1:10:45 PM4/18/17
to bigbluebutton-users
But the question is, why java is trying to load this native libraries, if they are not present in a system? Or is this native library loaded directly via your code in java app, not by some java library code indirectly? I always thought that due to vm nature of java machine, this cases shouldn't be an issue, it's java machine's job to use correct native libs. Anyways, sorry, I'm a c/c++ dev, don't know much about actually coding in java, so may be saying something stupid.
Nevertheless, applet version of screen sharing in bbb-1.0 works totally fine, so it may be possible to detect this case and use older variant of code on older osx'es (in case if it's part of the code that exists in both versions).
вторник, 18 апреля 2017 г., 19:57:41 UTC+3 пользователь Richard Alam написал:
Nevertheless, applet version of screen sharing in bbb-1.0 works totally fine, so it may be possible to detect this case and use older variant of code on older osx'es (in case if it's part of the code that exists in both versions).
вторник, 18 апреля 2017 г., 19:57:41 UTC+3 пользователь Richard Alam написал:
Richard Alam
Apr 18, 2017, 1:16:54 PM4/18/17
to bigbluebu...@googlegroups.com
On Tue, Apr 18, 2017 at 1:10 PM, Alexey Sharapov <nek...@gmail.com> wrote:
But the question is, why java is trying to load this native libraries, if they are not present in a system? Or is this native library loaded directly via your code in java app, not by some java library code indirectly? I always thought that due to vm nature of java machine, this cases shouldn't be an issue, it's java machine's job to use correct native libs. Anyways, sorry, I'm a c/c++ dev, don't know much about actually coding in java, so may be saying something stupid.
Nevertheless, applet version of screen sharing in bbb-1.0 works totally fine, so it may be possible to detect this case and use older variant of code on older osx'es (in case if it's part of the code that exists in both versions).
The native libraries are packaged in the jar files.
JWS detects the OS and download the native jars for that OS.
If the native jars has been built on newer version of the OS, then the native library might fail if it needs a newer library available in the OS.
The screensharing in version 1.0 (applet) is different than what is in 1.1 (jws). We haven't implemented any fallback mechanism so that if the JWS fails, then use the applet.
Richard
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Alexey Sharapov
Apr 18, 2017, 1:26:57 PM4/18/17
to bigbluebutton-users
I understand, thanks. So we'll use bbb-1.0 for time being, and I'll try to recompile native libs on 10.7.5, maybe it'll fix the problem.
вторник, 18 апреля 2017 г., 20:16:54 UTC+3 пользователь Richard Alam написал:
вторник, 18 апреля 2017 г., 20:16:54 UTC+3 пользователь Richard Alam написал:
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Richard Alam
Apr 18, 2017, 1:40:15 PM4/18/17
to bigbluebu...@googlegroups.com
On Tue, Apr 18, 2017 at 1:26 PM, Alexey Sharapov <nek...@gmail.com> wrote:
I understand, thanks. So we'll use bbb-1.0 for time being, and I'll try to recompile native libs on 10.7.5, maybe it'll fix the problem.
Please let us know how it goes.
Richard
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