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(Image now irrelevant, it is grabbing the newest graph from my server.. I did not archive a picture of it when it was broken. Instead of text, each character was represented by a block.)

I had not been checking my graphs for a long time. There have been updates to the server since it last worked. Has anybody seen this before?

Linux box 2.6.23-gentoo-r3 #1 SMP Fri Jan 11 21:08:20 EST 2008 x86_64 Intel(R) Xeon(R) CPU X3220 @ 2.40GHz GenuineIntel GNU/Linux

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Which font is specified for the display? – Darren Hall Dec 28 '09 at 7:47
How do I check that? – James Watt Jul 27 '10 at 23:51
up vote 1 down vote accepted

In my case I needed to install a font. E.g. on Gentoo:

emerge media-fonts/dejavu
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doh! thanks. not sure how this font got uninstalled (unmerged), as it worked correctly for a year. – James Watt Oct 10 '10 at 3:09

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