Messages in this thread | | | From | Bjorn Helgaas <> | Date | Mon, 6 Feb 2012 15:11:15 -0800 | Subject | Re: [Bug 41722] Clevo M5X0JE hangs in ACPI init |
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On Thu, Jan 26, 2012 at 7:41 PM, Bjorn Helgaas <bhelgaas@google.com> wrote: > On Thu, Jan 26, 2012 at 4:16 AM, Rogério Brito <rbrito@ime.usp.br> wrote: >> On Thu, Jan 26, 2012 at 00:03, Yinghai Lu <yinghai@kernel.org> wrote: >>> 2012/1/25 Rogério Brito <rbrito@ime.usp.br>: >>>> >>>> Wild thoughts: I just saw that nouveau calls some ACPI stuff to get >>>> EDID information and, as ACPI is broken on this notebook, could that >>>> be a potential reason for the panic that I'm seeing? (Yes, I can take >>>> a photo of the screen). >>> >>> Which 2.6.x kernel works on your laptop without disabling acpi? >> >> Unfortunately, no 2.6 kernel has worked on this laptop without >> acpi=off. I also once booted FreeBSD here just to see how it would >> behave and it also hang with ACPI enabled. >> >> From what I see on this notebook, if ACPI is not turned off, the >> computer simply hangs once the ACPI is started (it gives one layman >> like me the impression of entering an infinite loop). But, again, this >> is just a layman observation of what the system appears to be doing. > > My guess is that most of these problems are related, so if we fixed > whatever causes the ACPI hang, the other problems would probably go > away, too. > > Did you figure out anything about the MTRRs?
Ping :) Let me know if you'd like a patch to print out the MTRR info later in boot where it will be slow enough to capture in a video.
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