Those are configuration settings that are explained in the wiki. However, it’s worth noting that it only works if you have the 'x11-server-utils' package installed as you’ve discovered. On a stock Rasbian Jessie install, that package does get installed, but I suspect those with different distributions, or a Jessie-Lite install won’t have that. I’ll amend the wiki shortly. Thank you.

Ok, I need some testers … this is working for me with a small change in our fetcher code. So, for those willing to try, please following these steps:

Step 1
Navigate to the 'MagicMirror/modules/default/calendar/' folder

Step 2
Open the 'calendarfetcher.js' file in your favorite editor and look for the following line and delete it:

ical.fromURL(url, {}, function(err, data) {

Step 3
After deleting that line, in its place you’re going to paste in the following snippet of code:

    var opts = {
        headers: {
            'User-Agent': 'Mozilla/5.0 (Node.js 6.0.0) MagicMirror/2.0 (https://github.com/MichMich/MagicMirror)'
        }
    }
    ical.fromURL(url, opts, function(err, data) {

Please note that very last line, it’s almost identical to the one you deleted. Only one piece changed and you must put that line in as modified above!

Step 4
Save and close the file, and relaunch your MM process.

Step 5
Report back to me.

On my setup, it’s working. I’m getting this in my calendar now. (The names you see are birthdays, I simply have a filter to remove 's birthday' form the string that Facebook returns.)

Awesome, glad things are working out and you’re able to configure it the way you want to. As for the mirror … you can always get a larger mirror. :)

@paviro, stop breaking things! Your video link above is broken.

@matthewj, I moved your post here as it’s more about a module request than just general discussions.

Firebug extension in Firefox. Though most browsers have a basic console output if you just hit F12. And the data that you see there is normally not visible. I added those output streams in my dev tree so I can see what’s going on.

Yeah, not as easy as it sounds. For those who enjoy seeing the nitty gritty, this is what happens with the various calendar payloads and you can clearly see the FB one failing:

Working on trying to figure out why since it does work from the command line, but not in browser.

                {
                        module: 'newsfeed',
                        position: 'bottom_bar',
                        config: {
                                feeds: [
                                        {
                                                title: "New York Times",
                                                url: "http://www.nytimes.com/services/xml/rss/nyt/HomePage.xml"
                                        }
                                ],
                                showSourceTitle: true,
                                showPublishDate: true
                        }
                },
                {
                        module: 'newsfeed',
                        position: 'top_bar',
                        config: {
                                feeds: [
                                        {
                                                title: "CNN: Technology",
                                                url: "http://rss.cnn.com/rss/edition_technology.rss"
                                        }
                                ],
                                showSourceTitle: true,
                                showPublishDate: true
                        }
                },

Yes you can:

So here’s the fun part … mine was working. Because I hadn’t gone a 'git pull' in a while on my dev tree, so I never saw the change. Now that I am current, it’s not working. So, none of you are any more crazy than we all are, it really isn’t working. I’m running some debugging and trying to figure out where and why it’s failing.