On Mon, 2008-02-11 at 03:25 -0200, Carlos R. Mafra wrote: > Hi, > > I want to report that suspend to RAM stopped working on my Sony Vaio > VGN-FZ240E in 2.6.25-rc1 and that I could bisect the problem down > to: > > commit bc71bec91f9875ef825d12104acf3bf4ca215fa4 > Author: [EMAIL PROTECTED] <[EMAIL PROTECTED]> > Date: Thu Jan 31 17:35:04 2008 -0800 > > ACPI: enable MWAIT for C1 idle
I normally hate to throw in a 'me-too', but I'm also seeing a suspend-to-ram regression on my Thinkpad R61i that I've managed to bisect down to the same patch series. You beat me emailing the issue to the list by a few minutes :) > The problem with suspend to RAM is that right after typing (from inside X) > 'echo mem > /sys/power/state' the screen becomes black and the laptop > freezes. I have to use SysRq+b to reboot. My symptoms in this case are slightly different - the suspend appears to work correctly, and is fast. However, when I resume, the screen lights up quickly, but the system hangs for nearly a minute with the suspend light still on solid before it actually resumes. No delay is visible in dmesg; this apparently happens before the "return to C". > I tried to revert the above commit (bc71bec) on top of 2.6.25-rc1, but > the compilation fails. It turns out that I have to revert also 9a0b8415 and > 9b12e18c to be able to compile without errors. > > After reverting the 3 commits mentioned above, the resulting 2.6.25-rc1 kernel > can suspend to RAM again (and I must say that it is better that 2.6.24, > because > now it resumes directly into X and I don't need to use Crtl-Alt-F1 and Alt-F7 > to > go back to X as I used to do before). I just tried reverting the above-mentioned 3 commits, doing so fixes the delay. > The laptop is a Core 2 Duo T7250 2.0 GHz, running Mandriva 2008.0 in 64-bit > mode, with the > following graphics card: > VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated > Graphics Controller (rev 0c) (prog-if 00 [VGA]) Rather similar system - I have a core 2 duo 1.5 running x86_64 gentoo, and a GM965 chip (using uvesafb) > > If there is anything else I can do to help please let me know. > > Carlos R. Mafra -- Calvin Walton <[EMAIL PROTECTED]> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/