That is not the point. You tested Windows, it works. In the same testing frame-of-mind, you may as well have a look at the latest Ubuntu version, not in order to use it permanently, but in order to see how it behaves regarding the resume problem.
I will have to find another spare hard drive to install another version of Ubuntu.
I rather not do this, but I will do so if I have to.
You observation may be orrect, but not necessarely your conclusion. The G41M-P33 has a completely different chipset, hence it requires other driver models to function with the hardware. A test on another board with the same chipset components would yield an actually plausible conclusion.
Realistically, I don't have unlimited money to go buy another Intel G41 chipset-based mainboard just for this test.
The closest hardware I have actually done test with this hard drive is Dell Inspiron 530 (Dell OEM/Foxconn G33M02 mainboard, Intel G33 chipset + ICH9) with NVIDIA GeForce 7300 graphics card.
That computer had no issues with ACPI S3 resume.
Intel 3 series and 4 series chipsets are very similar.
Hence, I suspect a bug in MSI G41M-P33 ACPI BIOS.
I hope you don't keep dismissing my analysis. (I have already done testing on 4 to 5 different mainboard so I believe I know what I am doing.)
I have one more MSI mainboard (MSI K9N6PGM2-V2 mainboard), and this one doesn't have issues with ACPI S3, either.
Only MSI G41M-P33 crashes when resuming.