Hello NC Community!
First of all here my system setting:
Nextcloud version: 18.0.2
Operating system and version: CentOS 8.1.1911 Core
Apache or nginx version: Apache/2.4.37
PHP version: PHP 7.4.3
The issue you are facing:
Nextcloud Talk App (Android & iOS tested) doesn’t display video stream & sound stream (only black display on both sides - no sound).
Is this the first time you’ve seen this error? Y (It’s a brand new installation)
Scenarios tested:
- external smartphone to another external smartphone -> both sides black display
- external smartphone to internal smartphone -> both sides black display
- external smartphone to internal pc (Edge Chromium) -> both sides black display
- all cases above are working with smartphone’s browser (not the app) fine!
Further information:
- Video and audio stream on devices “PC to PC” is in all scenarios (internal/external) working!
- STUN/TURN Server is external and internal on ports 3478/udp/tcp 5349/udp/tcp reachable
- Chat is on all devices and scenarios working fine
Further information to NC Talk App:
- Tested with NC Talk v8.0.3 on Android 10 (Galaxy S9)
- Tested with NC Talk v8.1.0 on iOS 12.4.5 (iPad Air)
- Tested with NC Talk v8.1.0 on iOS 13.3.1 (iPhone 11)
–> Same behavior on all devices
Information to setup:
- Nextcloud (& STUN/TURN) Server is behind NAT
The output of your Nextcloud log in Admin > Logging:
No current entrys (09:04), here last four lines:
{"reqId":"XnMmRHfxME2tu99DpcEu9AAAAM0","level":3,"time":"2020-03-19T07:59:00+00:00","remoteAddr":"10.20.5.17","user":"7FBCC2A4-0F86-40CF-9927-DDF609662FD2","app":"PHP","method":"GET","url":"/ocs/v2.php/apps/spreed/api/v1/chat/uuw65h67?lookIntoFuture=1&lastKnownMessageId=483&includeLastKnown=0","message":"Function ldap_control_paged_result_response() is deprecated at /var/www/html/nextcloud/apps/user_ldap/lib/LDAP.php#75","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.122 Safari/537.36 Edg/80.0.361.62","version":"18.0.2.2"}
{"reqId":"XnMmVMFX@Jl6X6lPNz4pTQAAAJQ","level":3,"time":"2020-03-19T07:59:16+00:00","remoteAddr":"10.20.5.17","user":"7FBCC2A4-0F86-40CF-9927-DDF609662FD2","app":"PHP","method":"GET","url":"/ocs/v2.php/apps/notifications/api/v2/notifications","message":"Function ldap_control_paged_result() is deprecated at /var/www/html/nextcloud/apps/user_ldap/lib/LDAP.php#310","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.122 Safari/537.36 Edg/80.0.361.62","version":"18.0.2.2"}
{"reqId":"XnMmVMFX@Jl6X6lPNz4pTQAAAJQ","level":3,"time":"2020-03-19T07:59:16+00:00","remoteAddr":"10.20.5.17","user":"7FBCC2A4-0F86-40CF-9927-DDF609662FD2","app":"PHP","method":"GET","url":"/ocs/v2.php/apps/notifications/api/v2/notifications","message":"Function ldap_control_paged_result() is deprecated at /var/www/html/nextcloud/apps/user_ldap/lib/LDAP.php#310","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.122 Safari/537.36 Edg/80.0.361.62","version":"18.0.2.2"}
{"reqId":"XnMmVMFX@Jl6X6lPNz4pTQAAAJQ","level":3,"time":"2020-03-19T07:59:16+00:00","remoteAddr":"10.20.5.17","user":"7FBCC2A4-0F86-40CF-9927-DDF609662FD2","app":"PHP","method":"GET","url":"/ocs/v2.php/apps/notifications/api/v2/notifications","message":"Function ldap_control_paged_result_response() is deprecated at /var/www/html/nextcloud/apps/user_ldap/lib/LDAP.php#75","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.122 Safari/537.36 Edg/80.0.361.62","version":"18.0.2.2"}
The output of your config.php file:
<?php
$CONFIG = array (
'instanceid' => 'ocjogfh3mmrq',
'passwordsalt' => '[sensible]',
'secret' => '[sensible]',
'trusted_domains' =>
array (
0 => 'cloud.[sensible]',
1 => 'www.cloud.[sensible]',
2 => '[sensible].local',
),
'datadirectory' => '/data',
'dbtype' => 'mysql',
'version' => '18.0.2.2',
'overwrite.cli.url' => 'https://cloud.[sensible]/nextcloud',
'dbname' => 'nextcloud',
'dbhost' => 'localhost',
'dbport' => '',
'dbtableprefix' => 'oc_',
'mysql.utf8mb4' => true,
'dbuser' => '[sensible]',
'dbpassword' => '[sensible]',
'installed' => true,
'memcache.distributed' => '\\OC\\Memcache\\Redis',
'memcache.locking' => '\\OC\\Memcache\\Redis',
'memcache.local' => '\\OC\\Memcache\\APCu',
'redis' =>
array (
'host' => 'localhost',
'port' => 6379,
),
'mail_from_address' => 'cloud',
'mail_smtpmode' => 'smtp',
'mail_sendmailmode' => 'smtp',
'mail_domain' => '[sensible]',
'mail_smtphost' => '10.168.100.10',
'mail_smtpport' => '25',
'ldapIgnoreNamingRules' => false,
'ldapProviderFactory' => 'OCA\\User_LDAP\\LDAPProviderFactory',
'skeletondirectory' => '',
'default_language' => 'de',
'trusted_proxies' => '10.168.100.10',
'lost_password_link' => 'disabled',
'loglevel' => '2',
'log_rotate_size' => '20971520',
'updater.release.channel' => 'stable',
);
The output of your Apache/nginx/system log in /var/log/____:
Apache ssl_error_log: empty
Apache error_log: empty
system messages.log: no errors in it today
Final question:
Why is there a seperate behavior in the NC Talk App to the Webbrowser Clients? Maybe the NC Talk App uses different ports / mechanisms? Is there sth. to configure for using the app? Or is it a bug in the latest App?
Excuse possible spelling errors - in germany we say “my english is not the yellow from the egg” 
Have a nice day and stay healthy these days…
Michael
