Uploading images failing for some files

[richard090]

Some of my users are having trouble uploading files. I have created a test file and tried with their pictures and get a blank page. Can someone take a look and tell me what's wrong?
Attachment:Summer_Glau.jpg
Gallery
http://www.ga2c.org/MaximumEntropygallery/index.php?cat=1

Gallery:Test
User: Test
Password: Test

[Joachim Müller]

Works with a known-good file (see http://www.ga2c.org/MaximumEntropygallery/displayimage.php?pos=-301).

Uploading your sample file fails with a timeout. Uploading a resized copy (601x800) of your sample works as expected (http://www.ga2c.org/MaximumEntropygallery/displayimage.php?pos=-303).
Trying to upload a modified copy of your sample (with 96 dpi instead of 100), but identical resolution of 1042x1387 results in a "500 internal server error", so you should consult your server's error log for details. Probably you're running into resource limitations on your webserver. Please read the sticky thread on this board to get an idea about the server-sided settings that have an impact (there are many of them).
Or (in other words): upload files with smaller dimensions, your webserver is not capable to handle large files. Alternatively: get better webhosting with higher resource limits.