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    SubjectRe: [linux-pm] Tyan S2923-E suspend to ram fails to resume
    On Tue, September 2, 2008 09:07, Pavel Machek wrote:
    > On Sat 2008-08-23 17:47:10, Simon Arlott wrote:
    >> On 12/08/08 11:31, Pavel Machek wrote:
    >>> Yep, that should work. When it does not, it means BIOS is not
    >>> returning to our real mode code :-(. You may want to try disabling
    >>> APIC and similar stuff, in hope of working around BIOS bug you are
    >>> hitting, but ...
    >> I've tried the simplest possible 32-bit UP kernel I could come up with
    >> (.config attached) and it still doesn't work.
    >> (I modified post_init() to call pm_suspend(PM_SUSPEND_MEM).)
    >> Disassembly of the BIOS shows that DE is indeed part of 0xDEAD, but I
    >> haven't been able to tell what it's doing between D0 and there... not all
    >> of the port 80 codes that are displayed are easily visible.
    >> I've tried disabling all the CPU options in the BIOS, e.g. microcode
    >> update, VM, NMI but it doesn't help. I'm wondering if D0 is the right start
    >> point for the system - there's a DC code for S3 resume:
    > did a lot of work, but these issues are hard.
    > Do Windows suspend/resume on same hardware? BSD?

    Tyan is going to look into it based them being able to use a common Linux
    system (Knoppix 5.1.1) that fails to resume for me.

    I've tried Windows XP 64-bit SP2C, that will only go to S1.
    Vista Ultimate 64-bit will only go to S1 too.

    I've yet to try a BSD, but it'll be a couple of weeks before I can do

    Simon Arlott

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      Last update: 2008-09-02 13:23    [W:0.040 / U:9.368 seconds]
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