conky execpi command only reads first 256 bytes of output

Question

I'm trying to set up conky with conkyForecastWU using a .conkyForecast.template. I include the forecast command as follows in my .conkyrc:

${execpi 1800 conkyForecastWU --template=~/.conkyForecast.template}

But when I start conky I see the following errors appearing every second:

Conky: Unable to load image '/tmp/'

The conkyForecastWU-command from above generates the following output:

${font Raleway-10:weight=thin}
${image /tmp/.conkyForecastWU-WI-Clear.gif -p 40,1000 -s 60x60}
${image /tmp/.conkyForecastWU-WI-Chance-Of-Rain.gif -p 123,1010 -s 40x40}
${image /tmp/.conkyForecastWU-WI-Partly-Cloudy.gif -p 177,1010 -s 40x40}
${image /tmp/.conkyForecastWU-WI-Partly-Cloudy.gif -p 231,1010 -s 40x40}
${image /tmp/.conkyForecastWU-WI-Chance-Of-Rain.gif -p 285,1010 -s 40x40}
${image /tmp/.conkyForecastWU-WI-Mostly-Cloudy.gif -p 339,1010 -s 40x40}
${image /tmp/.conkyForecastWU-WI-Partly-Cloudy.gif -p 393,1010 -s 40x40}

When I add a space at the end of the first line, the error message ends with '/tmp', so conky only reads this part of the output, which is exactly 256 bytes long:

${font Raleway-10:weight=thin}
${image /tmp/.conkyForecastWU-WI-Clear.gif -p 40,1000 -s 60x60}
${image /tmp/.conkyForecastWU-WI-Chance-Of-Rain.gif -p 123,1010 -s 40x40}
${image /tmp/.conkyForecastWU-WI-Partly-Cloudy.gif -p 177,1010 -s 40x40}
${image /tmp/

But what's wrong? Seems to be a buffering issue when reading the output, but how can I tell conky to read more than 256 bytes?

Answer 1

Found the solution here: https://unix.stackexchange.com/questions/14785/conky-buffer-too-small

After setting

text_buffer_size 1024

the problem was solved.