Doing more investigation on why my event page isn't seeing thumbnails, I found the Apache2 logs. It seems to echo what the syslogs says. I also see a PHP warning. Has there been a recent change to ZM 1.30.0?
zm@zoneminder:/var/log/apache2$ tail -F error.log
[Tue Jan 03 07:11:37.083060 2017] [:error] [pid 26991] [client 192.168.1.202:55331] PHP Warning: imagecopyresampled() expects parameter 1 to be resource, boolean given in /usr/share/zoneminder/www/includes/functions.php on line 1003, referer:
https://192.168.1.147/zm/index.php
[Tue Jan 03 07:11:37.083066 2017] [:error] [pid 26991] [client 192.168.1.202:55331] PHP Warning: imagejpeg() expects parameter 1 to be resource, boolean given in /usr/share/zoneminder/www/includes/functions.php on line 1005, referer:
https://192.168.1.147/zm/index.php
[Tue Jan 03 07:11:37.085868 2017] [:error] [pid 26991] [client 192.168.1.202:55331] ERR [Can't create thumbnail 'images/67561-d-capture-4.jpg'], referer:
https://192.168.1.147/zm/index.php
[Tue Jan 03 07:11:37.088962 2017] [:error] [pid 26991] [client 192.168.1.202:55331] PHP Warning: getimagesize(events/5/16/12/31/11/39/16/d-capture.jpg): failed to open stream: No such file or directory in /usr/share/zoneminder/www/includes/functions.php on line 996, referer:
https://192.168.1.147/zm/index.php
[Tue Jan 03 07:11:37.088979 2017] [:error] [pid 26991] [client 192.168.1.202:55331] PHP Warning: imagecreatetruecolor(): Invalid image dimensions in /usr/share/zoneminder/www/includes/functions.php on line 1001, referer:
https://192.168.1.147/zm/index.php
[Tue Jan 03 07:11:37.089734 2017] [:error] [pid 26991] [client 192.168.1.202:55331] PHP Warning: imagecreatefromjpeg(events/5/16/12/31/11/39/16/d-capture.jpg): failed to open stream: No such file or directory in /usr/share/zoneminder/www/includes/functions.php on line 1002, referer:
https://192.168.1.147/zm/index.php
[Tue Jan 03 07:11:37.089758 2017] [:error] [pid 26991] [client 192.168.1.202:55331] PHP Warning: imagecopyresampled() expects parameter 1 to be resource, boolean given in /usr/share/zoneminder/www/includes/functions.php on line 1003, referer:
https://192.168.1.147/zm/index.php
[Tue Jan 03 07:11:37.089763 2017] [:error] [pid 26991] [client 192.168.1.202:55331] PHP Warning: imagejpeg() expects parameter 1 to be resource, boolean given in /usr/share/zoneminder/www/includes/functions.php on line 1005, referer:
https://192.168.1.147/zm/index.php
[Tue Jan 03 07:11:37.092458 2017] [:error] [pid 26991] [client 192.168.1.202:55331] ERR [Can't create thumbnail 'images/67560-d-capture-4.jpg'], referer:
https://192.168.1.147/zm/index.php
[Tue Jan 03 09:07:15.144707 2017] [:error] [pid 26990] [client 192.168.1.202:58784] INF [Login successful for user "admin"], referer:
https://192.168.1.147/zm/index.php