A search for "blank page" of the Drupal.org domain yields about 37,000 results.
This is probably one of the more common and frustrating problems for Drupal admins.
I've had the problem dozens of times myself. For no apparent reason, pages will simply come up blank. Drupal returns nothing at all, not even a set of empty HTML tags. As a developer, I'm used to seeing broken sites and fixing them. But the typical site administrator may not have the knowledge or experience necessary to debug something like a blank page.
The first thing you want to do is gather all available debugging info. The two primary places you'll find this information is in Drupal's logs (Administer >> Logs) and in your Apache log files (/var/log/httpd on Linux systems). If you're lucky, these logs will provide obvious clues as to what's wrong. Whether or not your able to gather any clues as to the source of your problem, below is a list of the most common causes of empty server responses:
- Memory: In your php.ini file there is a value called memory_limit, which is set to 8 megabytes by default. If you've installed a lot of modules, you can easily exceed 8 megs on a given page request. The solution is to increase this limit (I set mine to 32 megs because I have lots of memory on my host and few domains being served on it). If you're in a shared host environment, you won't be able to modify this value. In this case, you'll need to disable modules or get a new host.
- Buggy Modules: If you're problem began after installing and activating a new module, move the module's directory outside of /ROOT/modules/. Experimenting with modules is probably the easiest way to "break" your site. My suggestion is to test all modules on a non-production Drupal installation. Move them to your production site only after making sure they work properly (This message approved by Captain Obvious).
- Incompatible Modules: Using 4.6 modules on a 4.7 site is also a great way to break stuff. Make sure you've installed the module versions that match your Drupal version.
-
Broken Themes: A buggy theme can easily render a site unusable. My suggestion is to preview themes at the Drupal Theme Garden or on a non-production Drupal installation. If it's too late for that and you're experiencing blank pages, you should try setting the theme to a "safe", stock theme. If you cannot access your administrative pages (http://.../admin/themes), you will need to move your custom theme from your /themes/ directory to another temporary location. Alternatively, you can run this SQL command on your Drupal database: UPDATE variable SET value = 's:10:"bluemarine";' WHERE name = 'theme_default';
What about deleting cookies? Sometimes when I want to check a webpage's pagerank or SEO stats with my seoquake plugin, I get no page rank and no links shown for a particular website, even though I know that site is suppose to have stats (for example yahoo comes up blank for me when clearly it is not an actual blank website, well, until Jerry Yang runs it to the ground LMAO!).
Oops, forgot to mention the solution. Clear your cookies and any cache data? Just a suggestion though; it always works for me. Resetting my IP address also helps a lot too.
Anna Richard
Interesting, now I only get 11k results for "blank page" using Drupal now with your search query above. Wonder what caused this significantly lesser amount of results in just a month and a half time.... I do agree though, this error makes my stomach turn each time I see it.
Brian
SEO Position
Lost three days on this one :(((((
After playing with some modules things broke up. Removing the modules solved the problem half: all pages were back except the front page. The reason: a kind of broken .phtml file was stored in the browser's cache and was retrieved from there.
simple solution: CLEAR THE BROWSER CACHE !
(in Firefox: Edit -> Preferences -> Privacy -> Cache)
But it took me three days to find that out!
great find, I will keep this thing in my mind, when debuging drups, thanks for sharing..Keep up the tips and trick coming!
Albert
http://www.hydroponicswholesale.com
With 5.1 anyway, there is apparently no special checking in the admin themes area. If you select a theme as the default without putting a checkmark in the "enabled" checkbox for the theme you are setting the default to, you'll get a blank white page everywhere, including the admin panel.
Here's something that got me during a 4.7.3 to 5.x upgrade of a site that we inherited... In the Navigation block's "Page visibility settings" PHP code there was a call to a function that lived in module xyz. When I would disable module xyz, the only page I could visit without getting a blank page was admin/modules.
So there you go. Check your blocks' page visibility settings after you've tried all that other good stuff in this thread...
I'm having different issues. I'm getting blank pages after submitting forms, mainly editing nodes. Getting extremely frustrating. But it's not happening on my 4.7 site, only on my 5.1, and only in the last couple days. I haven't installed any modules lately either, or changed the theme.
I have had this same issue and thought that it maybe it had to do with my browser. After some testing, this didn't seem to matter.
You have mentioned an old Drupal Theme Garden which was closed with drupal 5 release.
A new drupal themes showcase can be found at Drupal Theme Garden.
thanx! I already thought it was the theme. I changed the theme to a new version and the blank pages were gone! good tip
thanks for good tip too, I changed the theme to a new version
Something frustrating :-(
I had a similar problem several weeks ago, and it was a theme related thing.
Now I have solved that !!
Regards
Enric
Very useful tips for Drupal. Thanks a lot.
I've see the dreaded blank page only once. It so happens that I downloaded all modules for Drupal, and yes, I installed them all! :D
How else was I gonna find out what they do?
Great information, keep the articles comming.
thanks and keep the good work.
WOW I have been trying to solve this problem for weeks. Thanks!
When I first had the problem, I switched to Wordpress, but since then have used newer versions of Drupal without problems. probably luck
Though customizable, Drupal as a CMS needs some good technical knowledge. I tried installing it myself and had the exact problem. Could not fix it by myself so had to get it installed again by a programmer. David - http://www.davidmoor.com
Personally I can't get enough of drupal. Right now my main blog, pick a web host is on Wordpress. This is because I'm working on figuring drupal out. I think the community is awesome we just need some better newbie initiation.
Vic
thanks post and site very nice.....
webmaster: www.dealerbeat.com
nice post..thanks
http://movies-films-data.blogspot.com/
Fundamentally that run is start of the air engine and allows the motif deviser to override the variables that get passed to the theme templates. Fair as an illustration: the writer.tpl.php tune example has $footer varied that contains the note knowledge entered in the position settings author. If you wanted to override that assess occasionally, you would use that office and cheque for when $hook equaled 'diplomat' then difference $vars['notation'] to whatever you loved. That saves you having to put all that system in the tender.tpl.php example itself. If you hand that system out of the templates it makes it easier for designers to delete them without feat addlepated by or screwing up the PHP.Is this contingent in much a way that the snippets do not screw to be concerted? In else line, to secretive out the mitt happening of a role so it can be redeclared subsequent on in the script.No not really. Not at lowest without the phptemplate engine effort redesigned a bit. The engine never truly premeditated for antithetical modules to disarray with it similar that.Mostly the exclusive group that would implement that usefulness would be air coders that sought to sterilize the variables easy to the templates.On a broadside annotation; as you probably gathered, I don't copulate much nearly php and get lowercase knowledge of how things wreak in drupal. Reaching from cms equivalent postnuke and mambo I'm not utilised to having to cabaret into redaction the php side of things. I hump much to study if I am accomplishment to follow with drupal. A contend yes but I desire not unrealistic!I meet think you've been unlucky here. I've never victimized one (let unparalleled two) contrib power before that required me to mussiness with that clog. They belike required to do it, but ideally modules and themes should be commutative of each other...read more
automotive jobslover.....!!!
The technicalities involved in drupal is one of the main reasons why I'm hesistent to use it at the moment. But there's no doubt it's a powerful cms though :)
Cheers,
Darren
Does anyone know if deleting cookies will allow you to rebid on Priceline instantly? I've tried using the re-bid zone/star system, but my bid is still rejected. I've read some of the forums, but the information looks dated as to my question. I thought about deleting cookies or opening up in a new browser. Does that work..? thanks by Lovable Van contract hire park...!!!