Michael Gerz wrote: > Hi, > > is anybody familiar with the preview feature?
I am. I wrote it ;-) > LyX 1.3 on Windows works fine when it comes to previewing math formula. > However, LyX 1.4 fails to generate the bitmaps. This is what LyX reports > on the console: > > Failed to extract metrics info from dvipng > PreviewLoader::finishedInProgress(1): processing failed for python > "....../scripts/lyxpreview2bitmap.py" png > ".../lyx_tmpbug0/0lyxpreview.tex" 129 000000 faf0e6 > > Any idea what's going wrong? Have a look at extract_metrics_info in lib/scripts/lyxpreview2bitmap.py. It's trying to parse the info passed to STDOUT by dvipng. Add print dvipng_stdout to see what this data is. It's been a long time since I played with this and dvipng is a moving target. It may well be that the information that's output has changed. As a work around, uninstall dvipng. The script will fall back on the dvi->ps->png conversion route that is used in LyX 1.3. -- Angus
