[Bug 390158] Re: [MSI MS-7329] suspend/resume failure [non-free: nvidia]

[Indie]

I’m surprised that suspend doesn’t work for the GeForce 6150 LE (C51PVG)
given that it’s been around since 2006. Also that it’s used in quite a
few motherboards that are designed for use in a HTPC where having the
suspend functionality would be desirable.

Even though in my previous comment I mentioned that the latest BIOS,
1.63, supposedly fixes suspend issues for Windows, I’m wondering if it
simply masks a problem that Windows/nVidia driver is able to deal with.
I don’t know the how the internals of ACPI/suspend work in the Linux
Kernel but I’m wondering if the suspend issue I’m experiencing is due to
a BIOS bug?

Does the kernel use a BIOS call to enter S3 suspend or is this done via
some direct hardware manipulation? On resume from suspend does the
kernel/BIOS call some VGA/VBE/Graphics function to re-enable the
Graphics hardware and display. My thinking behind all this is whatever
Graphics function in BIOS is being called isn’t doing it’s job correctly
– thus in my case the display never comes back on. Is anyone able to
clarify the low level workings of ACPI/Suspend and if it is the case
that the BIOS is supposed to do something to kick the graphics subsystem
back into life then I’ll raise a ticket with MSI.

-- 
[MSI MS-7329] suspend/resume failure [non-free: nvidia]
https://bugs.launchpad.net/bugs/390158
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