"Large" images not generating

  • danieduck

    (@danieduck)


    10 years ago

    When uploading an image to the Media Library, only the thumbnail, medium, and post-thumbnail (defined by the theme) are generating; no “large” size is created. My media settings are set to:
    Thumbnail: 150 x 150 pixels
    Medium: 300 x 300 pixels
    Large: 1000 x 1000 pixels
    The image I’ve been trying to upload is 1984 x 1400 pixels.

    Error log is returning the message:
    PHP Notice: ob_end_flush(): failed to send buffer of zlib output compression (0) in .../wp-includes/functions.php on line 3549

    I’ve got the Workality Plus 2.0.1 theme installed, using WordPress 4.5.1, no plugins are activated. I’ve read about a disabled/missing PHP GD library causing issues like this, but I checked and I have it enabled. What could be preventing the “large” size from generating?

Viewing 6 replies - 1 through 6 (of 6 total)
  • Moderator Steven Stern (sterndata)

    (@sterndata)

    Volunteer Forum Moderator

    10 years ago

    two things that occur to me are out of memory or out of disk space. How are you doing on each?

    Thread Starter danieduck

    (@danieduck)

    10 years ago

    Not sure how to check memory, but I’ve got 41 GB of available disk space.

    Moderator Steven Stern (sterndata)

    (@sterndata)

    Volunteer Forum Moderator

    10 years ago

    Anything in your error logs? If you have a VPS, anything in /var/log/messages?

    Thread Starter danieduck

    (@danieduck)

    10 years ago

    Only error is the PHP notice posted above… No VPS.

    Moderator Steven Stern (sterndata)

    (@sterndata)

    Volunteer Forum Moderator

    10 years ago

    Googling around, it seems that the solution may be related to the version of PHP provided by your host. If your control panel allows it, choose a newer version of PHP. If not, it seems the solution is to disable zlib compression. Here’s some ways to do that:

    https://gist.github.com/loorlab/028d9fca02e6e4f85d1a

    Thread Starter danieduck

    (@danieduck)

    10 years ago

    I just updated PHP from 5.5 to 5.6 and no luck.

    Can’t figure out how to disable zlib compression — that link suggests the problematic line of code is in one of the plugin files, but all my plugins are disabled, so I don’t even know where to begin looking for it.

Viewing 6 replies - 1 through 6 (of 6 total)

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