Date: Thu, 15 Jul 2004 17:11:32 -0400 From: "Dan Langille" <dan@langille.org> To: Bruce M Simpson <bms@spc.org> Cc: freebsd-mobile@freebsd.org Subject: Re: How's current lately for laptops? (was Two questions on Thinkpad T41) Message-ID: <40F6BAC4.15798.CDE62A7@localhost> In-Reply-To: <20040709013152.GR15368@empiric.dek.spc.org> References: <40EDB001.4311.E98BBCCC@localhost>
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On 9 Jul 2004 at 2:31, Bruce M Simpson wrote:
> On Thu, Jul 08, 2004 at 08:35:13PM -0400, Dan Langille wrote:
> > Bruce: I think this answers my question. My ThinkPad T41 is now in
> > the shop getting a new system board (I hope). When it returns, I was
> > considering running -CURRENT on it rather than 5.2.1-RELEASE. Your
> > experience above has encouraged me to try it. I'll cvsup to the
> > above date and let you know how it goes.... when I get it back.
>
> You also said on IRC:
> > [John Baldwin had a look at it at USENIX, and he figured it
> > was a cable or controller problem, which means the system board]
>
> If we can establish that the problem is isolated to a specific ATA
> controller revision, we may be getting somewhere....
>
> My T40, which does not demonstrate any of these problems, has the following:
> atapci0@pci0:31:1: class=0x01018a card=0x052d1014 chip=0x24ca8086
> rev=0x01 hdr=0x00
>
> A locally affected T41 has the following:
> atapci0@pci0:31:1: class=0x01018a card=0x052d1014 chip=0x24ca8086
> rev=0x01 hdr=0x00
>
> ...which are again, identical.
>
> Your T41 is... off to the shop for a motherboard replacement.
My T41 is back, with a new motherboard installed.
atapci0@pci0:31:1: class=0x01018a card=0x052d1014
chip=0x24ca8086 rev=0x01 hdr=0x00
vendor = 'Intel Corporation'
device = '82801DBM (ICH4-M) UltraATA/100 EIDE Controller'
class = mass storage
subclass = ATA
My T41 boot OK with
> What I'd like to do next is for people with affected machines to run
> acpidump, extract their DSDT, and then run md5 to at least establish
> if they're different; and following on from THAT, to run iasl and diff
> for possibly differing ACPI methods with regards to the CD-RW module.
Would it be useful to see a non-affected machine? Here's mine:
[root@laptop:~] # acpidump -d > ~/acpidump.DSDT
[root@laptop:~] # md5 ~/acpidump.DSDT
MD5 (/root/acpidump.DSDT) = a1db426b9d8061620e7bb0bf287896b4
[root@laptop:~] #
--
Dan Langille : http://www.langille.org/
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