On Monday 22 February 2010, Alan Stern wrote: > On Mon, 22 Feb 2010, Rafael J. Wysocki wrote: > > > On Monday 22 February 2010, Alan Stern wrote: > > > On Sun, 21 Feb 2010, Rafael J. Wysocki wrote: > > > > > > > > > Anyway, we need to check if control gets back to acpi_suspend_enter(). > > > > > > Would PM_TRACE_RTC help? > > > > In my opinion that's worth doing. > > Here's what I got: > > [ 3.349334] PM: Resume from disk failed. > [ 3.350060] Magic number: 0:141:321 > [ 3.352583] hash matches drivers/base/power/main.c:477 > [ 3.355144] tty tty46: hash matches > [ 3.357742] i915 0000:00:02.0: hash matches > > So it appears that the video driver is indeed the culprit. Is there > any way to narrow it down further? Not without adding some debug code to the driver. Which version of the kernel is this? > > > By concentrating on the video drivers, you may be missing part of > > > the problem. Have you considered why pressing a key on the keyboard > > > doesn't wake the system up? Nothing happens -- the power LED on the > > > desktop case just keeps on blinking. > > > > We may just not set up the keyboard as a wakeup device. The other option is > > that the BIOS has a problem with resume handling, in which case I have no > > idea what to do. > > Here's my /proc/acpi/wakeup: > > Device S-state Status Sysfs node > P0P4 S4 disabled pci:0000:00:1e.0 > MC97 S4 disabled > USB1 S4 disabled pci:0000:00:1d.0 > USB2 S4 disabled pci:0000:00:1d.1 > USB3 S4 disabled pci:0000:00:1d.2 > USB4 S4 disabled pci:0000:00:1d.3 > EUSB S4 disabled pci:0000:00:1d.7 > PS2K S4 disabled pnp:00:09 > PS2M S4 disabled pnp:00:0a > GBEN S4 disabled > > It appears that PS2K is the keyboard. If I write "PS2K" to > /proc/acpi/wakeup, I get: > > ACPI: 'PS2M' and 'PS2K' have the same GPE, can't disable/enable one seperately > > Apart from the misspelling, this doesn't bode well for making the > keyboard a wakeup device. This only means both will be enabled at the same time. > Furthermore, these values are not properly tied to the values in sysfs. They are independent and the sysfs values probably don't matter for these devices. What are the contents of /proc/acpi/wakeup after writing PS2K to it? Rafael _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
