I'm having the same issue as in this thread:
http://forums.modx.com/thread?thread=28737
When I upload an image (or file) in the MODX Browser (manager), the file won't appear until after page reload (usually by clicking the folder on the left).
Checking the error log shows this:
[2012-11-06 11:38:15] (ERROR @ /connectors/system/phpthumb.php) phpThumb was unable to generate a thumbnail for: /storage/content/[...]/public_html/core/cache/phpthumb/phpThumb_cache_[...]_src390e633b832a0b1245fe8d4e08c02b6e_paradf896d45f319fa323d889e84ccb98c5_dat0.jpeg
[2012-11-06 11:38:15] (ERROR @ /connectors/system/phpthumb.php) Error outputting thumbnail:
OutputThumbnail() failed because !is_resource($this->gdimg_output) in file "phpthumb.class.php" on line 557
(I have shortened the path with [...] in the code above).
I'm running:
MODX Revolution 2.2.5-pl (traditional)
MySQL 5.1.41-3ubuntu12.10-log
PHP 5.3.18
[ed. note: mrtnrsl last edited this post 11 years, 5 months ago.]