Only one core working on dual core CPU
Bug #215785 reported by
Adam Bagnall
This bug affects 2 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Bug Description
Binary package hint: linux-image-
This bug was present in Gutsy, I upgraded to Hardy to see if it had been resolved but it is still present. I have an AMD Athlon64 x2 5600+, which worked fine on my previous motherboard. I changed my motherboard to an ECS AMD690GM-M2 and now only one core works in Ubuntu, both cores are recognised in Windows. I have tried various things found via google. Booting with noapic makes no difference. acpi=off and acpi=ht result in an unbootable system. Disabling HPET in the bios makes no difference.
Changed in linux: | |
status: | New → Confirmed |
Changed in linux: | |
status: | Confirmed → New |
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Under Hardy 64bit daily (11/04/08) both cores are detected, still an issue on 32bit.