After reading http://www.mail-archive.com/debian-bugs-d...@lists.debian.org/msg792410.html I got a little but further. Recompiling digitemp without any optimization gives me output when running $ sudo ./digitemp_DS2490 -w
DigiTemp v3.5.0 Copyright 1996-2007 by Brian C. Lane GNU Public License v2.0 - http://www.digitemp.com Found DS2490 device #1 at 003/002 Turning off all DS2409 Couplers . Devices on the Main LAN 10761EE601080092 : DS1820/DS18S20/DS1920 Temperature Sensor 26A7D1F1000000D5 : DS2438 Temperature, A/D Battery Monitor 81FAEA2D0000009D : Unknown Family Code $ (it says 3.5.0, but I downloaded the 3.6.0 source code from www.digitemp.com) Without the -O0-trick, this list is blank. But when I try to initialize, nothing is found: $ sudo ./digitemp_DS2490 -i DigiTemp v3.5.0 Copyright 1996-2007 by Brian C. Lane GNU Public License v2.0 - http://www.digitemp.com Found DS2490 device #1 at 003/002 Turning off all DS2409 Couplers . Searching the 1-Wire LAN $ -- Digitemp can't read find 1wire network https://bugs.launchpad.net/bugs/452177 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs