Comment #1 on issue 363 by seanerussell: non-positive argument error on NVidia Xinerama set http://code.google.com/p/xmonad/issues/detail?id=363 Nice. Accidental carriage return caused this to be submitted. Anyhoo, I have an NVidia dual monitor graphics card set up to serve up two screens via Xinerama. Initially, xmonad worked on this setup, but didn't recognize the second monitor; eventually, I found out that the Haskell X11 library hadn't been compiled with Xinerama, so I fixed that. Now, xmonad exits as soon as it is started with an error that: xmonad-i386-linux: xmonad: StackSet: non-positive argument to StackSet.new I stripped my xmonad.hs down to the bare minimum (so that it didn't reference StackSet at all), and the error was still reported. In fact, I'm not sure that this has anything to do with Xinerama, now, because I've just tried to run xmonad on an Xnest session, and got the same error. I'm sure that this is a local problem, but I'm not sure how to proceed in debugging this. Any suggestions? xmonad: 0.9.1 GHC: 6.10.4 xorg: 7.3 ubuntu: Ubuntu 8.04.3 LTS All Haskell dependencies have been built out of cabal, refreshed as of 2010-01-22. 'xmonad --recompile' produces no STDERR/STDOUT output, and exits with exit code 0. Attachments: xmonad.hs 4.2 KB -- You received this message because you are listed in the owner or CC fields of this issue, or because you starred this issue. You may adjust your issue notification preferences at: http://code.google.com/hosting/settings