Re: Xorg and thinkpad x200s

[Pau <vim.unix%googlemail.com@localhost>]

Hello Steven,

this is NetBSD -current

I will try the other value tonight (am at work now)

Thanks a lot

Pau

2010/1/11 Steven Bellovin <smb%cs.columbia.edu@localhost>:
>
> On Jan 11, 2010, at 7:16 AM, Pau wrote:
>
>> Hello,
>>
>> the bios was already on AHCI...
>
> What are the other values?  Have you tried one of them?
>>
>> That's really bad. I am looking forward to using NetBSD on this laptop
>> for my production system, and this is a "feature" I would really need.
>>
>> Look at this:
>>
>> # sysctl hw.acpi.supported_states
>> hw.acpi.supported_states = S0 S3 S4 S5
>>
>> # dmesg | grep pciide0
>> pciide0 at pci0 dev 3 function 2: vendor 0x8086 product 0x2a46 (rev. 0x07)
>> pciide0: bus-master DMA support present, but unused (no driver support)
>> pciide0: primary channel wired to native-PCI mode
>> pciide0: using ioapic0 pin 18 for native-PCI interrupt
>> atabus0 at pciide0 channel 0
>> pciide0: secondary channel wired to native-PCI mode
>> atabus1 at pciide0 channel 1
>> Devices without power management support: pciide0
>>
>
> The problem is very local: one specific driver (pciide, which is used to 
> attach the bus to the PCI bus, doesn't support suspsend/resume.  If you use a 
> different disk interface, it may select a different driver.
>
> Beyond that -- someone who knows that driver would have to add power 
> management support.  It's probably just a matter of saving and restoring a 
> few registers, but past that I don't know; I've never looked at that driver 
> and have no knowledge of the device.
>
> The only other thing to do is to try a -current kernel, but I don't even know 
> if anyone has been working on it.
>
>
>                --Steve Bellovin, http://www.cs.columbia.edu/~smb
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