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On Thursday, February 18, 2016 03:24:10 PM Peter Humphrey wrote: |
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> On Thursday 18 February 2016 15:11:44 J. Roeleveld wrote: |
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> > On Thursday, February 18, 2016 12:05:14 PM Peter Humphrey wrote: |
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> --->8 |
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> |
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> > > Now that I think about it, I did update the AMI BIOS several weeks ago. |
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> > > It went from 1102 to 2101 - a bit of a step. Maybe that's what's broken |
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> > > my system - well, this bit of it, anyway. |
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> > |
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> > Could very well be the case. |
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> |
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> In which case I'm stuck, because the BIOS's ez-flash utility won't let me go |
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> backwards in versions. Meanwhile I've flashed the latest one again just to |
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> see if it would make any difference (it hasn't), this time remembering to |
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> reset to defaults first. |
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> |
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> There is a BIOS option called "Addon ROM display mode" which seems to ask |
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> whether an expansion card's ROM should override the installed default, |
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> though it's hard to tell with the "pidgin" English. I'll try flipping that |
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> and see what happens. Later: nothing, as far as I can see. |
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You could try (depending on age and how helpful supplier is) a different method |
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to downgrade the BIOS. |
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Some mainboards have the option to downgrade by adding a different flash-rom |
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with an older version and/or you could have it flashed differently. |
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> > Also, not sure if the following might help: |
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> > # zgrep -i iomm /proc/config.gz |
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> > CONFIG_GART_IOMMU=y |
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> > # CONFIG_CALGARY_IOMMU is not set |
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> > CONFIG_IOMMU_HELPER=y |
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> > CONFIG_IOMMU_API=y |
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> > CONFIG_IOMMU_SUPPORT=y |
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> > # Generic IOMMU Pagetable Support |
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> > CONFIG_IOMMU_IOVA=y |
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> > # CONFIG_AMD_IOMMU is not set |
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> > CONFIG_INTEL_IOMMU=y |
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> > CONFIG_INTEL_IOMMU_DEFAULT_ON=y |
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> > CONFIG_INTEL_IOMMU_FLOPPY_WA=y |
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> > # CONFIG_IOMMU_DEBUG is not set |
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> > # CONFIG_IOMMU_STRESS is not set |
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> |
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> Mine's the same. |
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> |
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> > # zgrep -i dmar /proc/config.gz |
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> > CONFIG_DMAR_TABLE=y |
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> |
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> Ditto. |
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> |
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> My options now seem to be to replace the motherboard, replace the display |
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> card, both of which are now just over six years old - or drop BOINC projects |
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> that use VirtualBox. |
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> |
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> Thanks for the help, Joost. If anyone else has any ideas I'd be grateful to |
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> hear them too. |
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Current thoughts: |
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I/O APIC in the VM settings. Try toggling it (same as other options) |
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Especially if they are different between VMs that work and don't work. |
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My kernel version: |
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# uname -a |
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Linux andromeda 4.1.12-gentoo #1 SMP PREEMPT Wed Nov 25 20:47:48 CET 2015 |
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x86_64 Intel(R) Core(TM) i7-4800MQ CPU @ 2.70GHz GenuineIntel GNU/Linux |
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Haven't upgraded this system yet to a new kernel. That is planned for next |
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week. I run Gentoo-stable on this laptop. |
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-- |
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Joost |
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