https://bugzilla.kernel.org/show_bug.cgi?id=43169
fpgahardwareengineer <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |[email protected] --- Comment #4 from fpgahardwareengineer <[email protected]> 2012-09-29 10:52:37 --- Hi Paul, Can you burn an older version of Fedora (i.e., Fedora 8 should be okay) and boot it from CD/DVD? When Fedora installer starts up, it does dump quite a bit of information about the system. There you can see the supported ACPI states. It is a good diagnostic tool, in my opinion. If you see a message that looks like "ACPI (Sx Sx Sx Sx)" and you don't see S3 included in the list, then the mainboard does not support Suspend to RAM or Suspend to RAM is not activated in the BIOS setup. If you don't see a "Suspend to RAM" or "ACPI State" in your BIOS setup's Power section, then I will doubt that you will be able to perform Suspend to RAM with that particular mainboard. Looking at your debian.org post's lspci information you uploaded, it looks like your mainboard was manufactured by Elite Computer Systems or ECS. Looking at the lspci, I saw two devices having an ECS PCI Subvendor ID. >From my own experience of dealing with ECS mainboards, ECS does seem to want to support ACPI S3 State (STR or Suspend To RAM) with mainboards containing SiS or VIA Technologies chipsets. For example, I have ECS P6S5A (SiS 635), K7S5A Pro (SiS 735), 755-A2 (SiS 755/964), and KT600-A (VIA Technologies KT600/8237) and none of these boards support ACPI S3 State despite the chipsets themselves support ACPI S3 State at the hardware level. I also have ECS P4M800PRO-M (VIA Technologies PM800/8237) and 761GX-M754 (SiS 761GX/964) mainboards released around 2005, and they identify as supporting ACPI S3 State, but they don't ever enter ACPI S3 State in Linux. On the other hand, ASUS has sold number of mainboards with SiS and VIA Technologies chipsets, and they have supported ACPI S3 State as early as 2002. (i.e., TUV4X released around 2001/2002 supports STR, although it will always perform Video rePOST.) ASUS P4S8X mainboard (SiS 648/963 chipset) and P4S8X-MX mainboard (SiS 661GX/964 chipset) support ACPI S3 State. As you might see, ECS and ASUS use the same southbridge chip (SiS 964), but ECS doesn't at all (755-A2) or is buggy (M761GX-M754) with ACPI S3 State support, but ASUS does diligently supports it (P4S8X-MX. Hopefully, this information helps. Regards, fpgahardwareengineer -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. ------------------------------------------------------------------------------ How fast is your code? 3 out of 4 devs don\\\'t know how their code performs in production. Find out how slow your code is with AppDynamics Lite. http://ad.doubleclick.net/clk;262219672;13503038;z? http://info.appdynamics.com/FreeJavaPerformanceDownload.html _______________________________________________ acpi-bugzilla mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
