Savefig causes a flash on the display

Calling savefig(“file”) writes the file, and the plots are as expected. But every call causes the screen to flash. I believe the plot is momentarily displayed and the plot window removed before the file is written. Running a long program that creates many plots makes the machine unusable. Sometimes I also get errors written to the terminal:

read: Connection reset by peer
send: Broken pipe

This happens with both Julia 1.5 and 1.6.0-rc1, on Ubuntu Linux. I put semicolons after all calls to plot and savefig. I don’t understand why savefig just doesn’t write to the file without trying to display a plot window.

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Replying to my own comment to say that recent versions of Plots no longer have this problem.

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