Linker::makeImageLink2: File:blah.jpg does not allow inline display
Fragment of a discussion from Project:Support desk
1 year later. I am having same problem. Using mw version 1.17.0, supposed to be stable.Installed PHP GD Appreciate if you could share solution if you managed to fix the prob. Thanks! Zai
This can be caused if MediaWiki had trouble determining the width and/or height of the image.
The width and height are generally discovered at upload time and stored in the db. A purge action causes this data to be re-fetched from the image.
So it sounds like your db somehow got bad data for some images.
Try running the maintenance script refreshImageMetadata.php with the -f option
php refreshImageMetadata.php -f
(rebuildImages.php would probably also work. Both scripts do similar things).