Similar problem with phenom II x4 965, but with a wierd twist: I have Windows XP also, and all cores are recognized all the time. ubuntu 9.10, as weel as SuSE 11.2milstone8 all variations are possible: one core, two cores, three cores and, YES even all four. ubuntu 9.04 and 8.10 have better chance than 9.10, but still it is random.
m/b gigabyte ga-ma790xt-ud4p, latest bios (f6). gigabyte support suggested misplaced heat sink, but there is no difference between cold or warm start. -- Athlon X2 not recognized as dual core https://bugs.launchpad.net/bugs/437821 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