David, A Pentium D is a dual core CPU. It is two Pentium 4E stuck together for the 800 series. I have an 830.
Anyway, this can be closed. It turned out to be an ACPI issue. It doesn't make sense, but after I reset the CMOS to the defaults, everything is working correctly. I wished I saved a dmesg result before doing it because it still doesn't make sense that the Live CD would detect it fine and not the installed version. I know how hard it is to fix bugs and I'm sorry I didn't get as much information as I could. This is now the /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Pentium(R) D CPU 3.00GHz stepping : 4 cpu MHz : 2800.000 cache size : 1024 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pni monitor ds_cpl est cid cx16 xtpr bogomips : 6005.47 clflush size : 64 processor : 1 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Pentium(R) D CPU 3.00GHz stepping : 4 cpu MHz : 2800.000 cache size : 1024 KB physical id : 0 siblings : 2 core id : 1 cpu cores : 2 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pni monitor ds_cpl est cid cx16 xtpr bogomips : 6000.35 clflush size : 64 -- Pentium D Install Shows Single Core https://bugs.launchpad.net/bugs/158490 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
