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Very Odd issue

Linux mint 13 "Mate"


I have an AMD 6 core CPU but in system monitor it only reports as 1 cpu. It is also heavily loaded at all times over 15 percent at a minimum, before it would show each core and on an idle system It would be odd to see a core jump over 5 percent. So it seems like the system is running on only one core. I have also tried a fresh install.


What are some steps I should take before I go to another distro to see if the problem persist and start wonder if my CPU/Sysboard has gone bad.


output from uname -a

Linux mint 3.2.0-23-generic #36-Ubuntu SMP Tue Apr 10 20:39:51 UTC 2012 x86_64 x86_64 x86_64 GNU/Linu


output from cat /proc/cpuinfo

mint@mint ~ $ cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 21
model  : 1
model name : AMD FX(tm)-6100 Six-Core Processor            
stepping : 2
microcode : 0x6000626
cpu MHz  : 3311.242
cache size : 2048 KB
physical id : 0
siblings : 1
core id  : 0
cpu cores : 1
apicid  : 16
initial apicid : 0
fpu  : yes
fpu_exception : yes
cpuid level : 13
wp  : yes
flags  : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc up rep_good nopl nonstop_tsc extd_apicid aperfmperf pni pclmulqdq monitor ssse3 cx16 sse4_1 sse4_2 popcnt aes xsave avx lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 nodeid_msr topoext perfctr_core arat cpb npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold
bogomips : 6622.48
TLB size : 1536 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb


I had Linux Mint 13 mate running fine on my desktop, which is an i7-2600k. I did a search on your cpu and mint. Only thing I found was this so it seems it should work. But what it looks like this person is running LM13 in a virtualbox so that may make the situation a bit different. I did a search on supported hardware and it seems like it's not listed there. So it I would think the cpu isn't supported by Mint and I can't find anything else on the net on it. to do a full install first. Could you try running the following commands and post the output?


lsmod | grep cpu

to see if the cpu modules are loaded


to see how many cores it actually sees under cpu(s)

grep -i --color "model name" /proc/cpuinfo

to see the cores it sees running



Instead of installing a whole new distro you also try running it from live cd's also to see how it runs. But lets just see what the results of this is first?

I will run those commands when I get home. It's odd that it was working. I just cantimagine that all of a sudden 5 cores went bad on my CPU but it still funtions. Like I said I'll try another OS and see how many cores it recognizes.



I downloaded Ubuntu 12.10 to test the system on a live CD and FELL IN LOVE. Ill never know why Mint only recognized one core becuas I just simply installed Ubuntu. I know it's just a RC but it is sexy, elegant and fast! It didnt freak out with my new Nvidia video card either.




Now to configure conky all over again.

Well glad you got it working now, but now you weren't able to figure out what the problem was after you did a reinstall.

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