Hello,
in the evening I spent some time to ttry out the dekstop-sharing under
different circumstances.
OS: Windows 10 1809
Browser: Firefox 66.0.3
When I choose the "sharing-icon" I can slect between 3 possibilites.
No matter what I choose: A Software written in Delphi make at the viewer
only a black window.
Chrome: 73.0.3683.103
When I choose the "sharing-icon" I can not select between Screen, Window ...
This box is disabled, I can ony choose "Screen". The FPS is disabled too.
Here the Delphi-Software runs perfectly. No black screen.
Result:
Firefox: Black window
Chrome: Works perfect
Have anybody an idea why in Chrome it works, in Firefox not?
(I tested Edge too, but there I get certificate-errors when I start the
Sharing. But it's OK, it's a virtual machine
and I have there no https-certificate.)
Best regards,
René
Am 13.04.2019 um 14:13 schrieb Maxim Solodovnik:
Is this behavior Browser/OS dependent?
On Sat, 13 Apr 2019 at 17:23, Aaron Hepp <aaron.h...@gmail.com
<mailto:aaron.h...@gmail.com>> wrote:
Looks like there is some "program types" that it has trouble
capturing. Would say a flaw of WebRTC. I have the same problems
with certain java based programs. When doing the screen sharing,
you will get a black screen but if you look every now and then is
will show for a brief instance then back to black "Flickers" more
so. This was when capturing (window or Application). If you
capture the screen then it can display it without issues.
On 4/13/19 3:34 AM, R. Scholz wrote:
Hello,
when I share a program in OM5 some programs only show at the
viewer a black window.
(I told it in an email a few days ago and Maxim made some ideas
to identify the problem.)
I tried out a lot of programs and, beneath our own programmed
software I saw that the
product "SoftPerfect Network Scanner" make this black screen too.
In my own "system-tools-libary" I use the (old) free-version
"4.4.5". (Its totally enough, this free version
do exactly what I want.)
A look into the binary-code shows that it is a delphi-program.
Has anyone an idea I can try?
Best regards,
René
Am 13.04.2019 um 09:19 schrieb R. Scholz:
Hello Aaron,
I think it is the same problem I had a few weeks ago. (And I
hope I solved it.)
To your questions with the log: You find relevant logs at
"/opt/logs" e.g. "/opt/%OMDIR%/logs". The actual log is named
"catalina.out".
When it is the error I think you have to edit the
"mysql-persistence.xml"
You find it in the openmeeting-Directory ->
webapps/openmeetings/WEB-INF/classes/META-INF.
Here the part of my email.
My Solution:
The Parameter "serverTimezone" must in the first line of the
Driver-command (where is separated by "&").
It doesn't matter where you put it.
When I put it into the comma-separated-part it's not functionally.
Here's my line in the mysql-persistence.xml:
value="DriverClassName=com.mysql.cj.jdbc.Driver
,
Url=jdbc:mysql://localhost:3306/openmeetings?autoReconnect=true&useUnicode=true&*serverTimezone=Europe/Berlin&*createDatabaseIfNotExist=true&characterEncoding=utf-8
&connectionCollation=utf8_general_ci&cachePrepStmts=true&cacheCallableStatements=true&cacheServerConfiguration=true&useLocalSessionState=true&elideSetAutoCommits=true&alwaysSendSetIsolation=false&enableQueryTimeouts=false&prepStmtCacheSize=3000&prepStmtCacheSqlLimit=1000&useSSL=false&nullNamePatternMatchesAll=true
, maxTotal=100
, maxIdle=100
, minIdle=0
, maxWaitMillis=10000
, TestOnBorrow=true
, poolPreparedStatements=true
, Username=
, Password=" />
I hope it helps.
Best regards,
René
Am 13.04.2019 um 01:58 schrieb Aaron Hepp:
Where are the connection logs to the database located at? Just
stood up a new OM5 instance on a Ubuntu 16.04 install. went
through all the steps, but does not look like it is making a
connection to the MySQL database.
Could not create connection to database server. Attempted
reconnect 3 times. Giving up.
Database is up and listening on port 3306, made sure database
name, user and password were correct, but keep getting the
errors. Was going to look at the logs but forgot where they
are at to determine what the issue was.
--
WBR
Maxim aka solomax
