Jens, It is not happening all the time with the system, but only under a very specific class file. Having thought about it a bit more after the initial posting it may be an issue with pdftex itself, or with the Python script the invokes it (from Lyx).
If you create new file using the koma-letter2.lyx template file (which uses the scrlttr2 latex class. The template is a default one in 1.6 series Lyx) and go it not math mode and insert a symbol in the text somewhere (I inserted a \rightarrow a symbol). Save the file, and exit and reload. Simply reloading the file will start pdftex and it will continue to run, even if you exit Lyx again. This appears to do this on all machines that I run this on. Also happens under 1.6.10. It may be an issue with pdftex and this use of it with this class, but nevertheless the Python script that starts pdftex should stop it on Lyx stopping. Incidentally the file compiles and displays OK. Regards Bob Betz --------------------------------------------------------------------- Dr. Robert Betz Ampcontrol Professor of Power Engineering, Head, School of Electrical Engineering and Computer Science, Faculty of Engineering and Built Environment, University of Newcastle, Australia, email: [email protected] FAX: +61-2-4921-6993 TEL: +61-2-4921-6091 Mobile: (+61)-(0)419249948 Web: http://eecsbobb.newcastle.edu.au/rebetz --------------------------------------------------------------------- >>> On Mon, May 16, 2011 at 3:44 AM, in message <[email protected]>, Jens Nöckel <[email protected]> wrote: On May 14, 2011, at 7:52 PM, Robert Betz wrote: Tried uninstalling Lyx 2.0.0 and reinstalled Lyx 1.6.10 and also 1.6.9. All doing the same thing (pdftex not closing and using 100% CPU), so it may be my system. Doing on two though. The parent process for pdftex is Python, whose parent in turn is Lyx. When Lyx closes down, Python closes but pdftex is not closing. Maybe there is some problem with my installation of Python. It appears to be using Python 2.6 Bob, is this happening all the time or just for a specific file? If the latter, could you post a small example file? If it happens for any file, then go back to LyX, create a new file (e.g, "newfile.tex") with just one line of text, and export it as a LaTeX (pdflatex) file. Then try to pdflatex that exported file from the _terminal_ with "pdflatex newfile". If that doesn't work, it's a problem with your TeX installation. You could then send the tex file and the latex log. You could also try paring the file down by deleting any "\usepackage" commands in it, until the error goes away. Maybe you have some package or font installed that causes this crash. This could be hard to find if you have local installations that differ from the standard distribution. Jens
