Munin-graph error: Pango-WARNING **: Invalid UTF-8 string passed to pango_layout_set_text()

You may get a mail from cron complaining about “Pango-WARNING **: Invalid UTF-8 string passed to pango_layout_set_text()”, if you are running Munin. This is caused by Munin not receiving valid UTF-8 data.

For this you have 2 possible solutions:

1) Patch munin-graph manually using:

Note that the line numbers are a bit off if you are using another version.

2) Find the munin-node plugin that causes the problem(aka having some none utf-8 characters). Most likely it is the following line in the plugin hddtemp_smartctl:

print “graph_vlabel temp in °Cn”;

Change it to:

print “graph_vlabel temp in Cn”;

Restart the munin-node and you should not get more trouble, at least from that plugin.

One reply on “Munin-graph error: Pango-WARNING **: Invalid UTF-8 string passed to pango_layout_set_text()”

Just in case anyone else needs a direct path to the string:


I use CentOS 5.5 with Cpanel. Thanks for the hint!

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