On 11/5/18 2:32 PM, Jeff Defoe wrote:
I realized I was using the Lyx from the Ubuntu repository. When I
removed it, added the PPA, and installed LyX from that -- it now seems
to work.
I do, however, have an odd problem where graphics often don't display
in LyX, giving errors such as "error loading file into memory" or
"error converting to loadable format" which I didn't get before
upgrading to Ubuntu 18.04.
Best regards,
Jeff
One possibility has to do with Imagemagick. I recently opened an old LyX
file with some EPS graphics, and got the "error converting" message on
all of them. In Tools > Preferences... > File Handling > Converters, the
converter for EPS to PNG is correctly configured to use the Imagemagick
convert command. The catch is that recent versions of Imagemagick
apparently ship with seriously anal retentive permissions by default. If
you run "convert something.eps something.png" in a terminal, you get an
error saying something about not being allowed access.
The fix is to open /etc/Imagemagick-6/policy.xml in an editor, using
root privileges, and comment out the line "<policy domain="coder"
rights="none" pattern="EPS" />". I also commented out the equivalent
lines for PS, PDF and XPS just to be safe. After that, LyX was able to
display the EPS images.
Paul
