http://bugzilla.kernel.org/show_bug.cgi?id=14710
Summary: ACPI Parse/Setup failure on HP Core I7 Laptop
(Pavilion dv7-3085dx)
Product: ACPI
Version: 2.5
Kernel Version: 2.6.31 & 2.6.31 RC7 & 8
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: blocking
Priority: P1
Component: EC
AssignedTo: acpi...@kernel-bugs.osdl.org
ReportedBy: bwmcadams+ker...@gmail.com
Regression: No
Created an attachment (id=23978)
--> (http://bugzilla.kernel.org/attachment.cgi?id=23978)
dmesg output from boot.
I've been having issues with a new HP laptop, a DV7-3085dx and getting ACPI
properly functioning. Passing acpi_osi=Linux as a kernel param makes a HUGE
difference in exposing c-states, etc; however, I still get AE_NOT_FOUND and
AE_NOT_EXIST errors. It seems as a result the fans don't get run all the way,
and I see some high CPU temps with load; as a result, on reboot I get a
"helpful" HP BIOS warning that my machine hasn't been properly managing the
fan. (it actually tells me it was forced to hibernate due to temp issues).
The overall specs are Core I7 Q 720 & 1.60 GHz (4 hyperthreaded cores [4
physical 8 logical]), 6 gigs DDR3, 500 gig SATA and a nvidia 230m with 1 gig of
discreet ram. Overall a heat generator.
I would love to make this machine work - in fact, with some guidance I am more
than happy to put in the work to write code to either debug, dump or fix the
issues. My C is up and down but I've done some Kernel work before. I love
this laptop, but Windows 7 is tolerable at best. When it works Linux runs like
a dream on it - I am just risking overheating the machine and HP has
demonstrated a lack of interest in fixing it (identical issues on the Envy
series core i7s - apparently they outsource their bios development to Insyde).
I have compiled a few kernels, running Ubuntu 9.10's stock 2.6.31 kernel, as
well as custom compiled 2.6.32-rc7 and 2.6.37-rc8. With acpi_osi=Linux I get
fairly far but eventually after bootign the thermal zones, etc on the processor
it fails.
I've attached the the dmesg output. I'm desperate for a fix, or a pointer as
to how to fix it myself since I suspect if any kernel developers had the
machine they'd have fixed it themselves already ;) I can provide the DSDT if
necessary, although it fails to compile with IASL ( I believe it is compiled by
nvidia using the msft compiler from the reading I've done ).
On the dmesg, failure section begins at line 398. Any tips on working around
it / hacking it?
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