Hi all,
Thanks to some help about my previous thumbnails question: "I uploaded a png image but no thumbnails created in the File page."
I have tried several methods but the thumbnails are still not working. I still face the problems that I have neither thumbnails or preview images in 'File:' pages.
I have already installed ImageMagick in my Ubuntu. What I have tried was to: 1. check wiki/images/thumb/ folder, but only old thumbnails are there. (Yes, I used to have thumbnails several month ago.) No new ones that I uploaded recently are there. 2. chowe -R root:root wiki/images/ and chmod -R 777 /wiki/images/ 2. change memory consumption by increasing $wgMaxShellMemory to 409600 in LocalSetting.php, but still no thumbnails appears.
So here are my new questions: 1. Small images (like 500kb) can sometimes have previews (but no thumbnails). But large images always no previews. How to fix? 2. I have a strange finding. Some jpg images can show the previews in my home computer but cannot show previews in my office computer. What may cause that? 3. My current MW version is 1.26. And my PHP version is a little bit out of date: 5.3.10. May this cause a problem related to previews and thumbnails?
Looking forward to your further help.
Thank you, Jingyi