On Wednesday 09 August 2006 20:01, Brannon Klopfer wrote: > Rafael J. Wysocki wrote: > > On Tuesday 08 August 2006 19:15, Brannon Barrett Klopfer wrote: > > > >> Howdy, > >> > >> My hp dv8000t (core duo) is completely dead on resume from RAM (no caps > >> lock, sysrq, netconsole, > >> nothing). I've tried a recent (2.6.18-rc4) kernel running almost entirely > >> naked, so to speak (~990K) -- no support for: > >> > >> SMP > >> preempt > >> modules > >> networking (+ enet drivers, unless running netconsole) > >> USB and SATA (not at same time; rootfs is either usb drive or SATA [ext2/3]) > >> FireWire > >> cpufreq > >> framebuffer (vga=0) > >> audio > >> PCMCIA > >> IDE (for cdrom) > >> > >> I've tried both native SATA (ahci) and legacy (ata_piix), but same result > >> w/both -- completely dead on resume from RAM. Blindly entering commands > >> does nothing, and running "$suspend ; $shutdown" does nothing either. I've > >> also tried with and without noapic, and a number of other kernel > >> paramaters, but nothing seems to work. > >> > >> Be more than happy to try out patches, etc. to get this thing working. > >> Additionally, if someone could point me to that "beep on resume" patch, > >> that'd be great. > >> > > > > First, please apply the appended patch and try the following: > > > > (1) > > # echo testproc > /sys/power/disk > > # echo disk > /sys/power/state > > > > This should turn off the non-boot CPU, freeze all processes, wait for 5 > > seconds and then thaw the processes and the CPU. > > > Works fine. FWIW, after applying the patchs (so as to have > 2.6.18-rc3-mm2), my internal keyboard didn't work, so I used a USB one. That is specific to 2.6.18-rc3-mm2 and has nothing to do with the suspend. There should be a patch for that in hot-fixes. > It could be my simple .config'ing error, didn't spend much time with it, > but know that I did use a USB keyboard, hence USB support in the kernel. > > (2) > > # echo test > /sys/power/disk > > # echo disk > /sys/power/state > > > > This should turn off the non-boot CPU, freeze all processes, shrink > > memory, suspend all devices, wait for 5 seconds, resume the devices etc. > > IOW it does everything that's needed for a suspend except for actually > > suspending. > > > With *legacy* ata_piix, it works fine, as does a "real" suspend-to-disk. > It still *will not* resume properly from suspend-to-RAM, with and > without noapic. I think I know what the problem is, but unfortunately I have no patch for that. Please look at http://www.ussg.iu.edu/hypermail/linux/kernel/0607.3/1566.html but the fix discussed there is for AMD/NVidia only. > FWIW, somehow the built-in keyboard managed to get its > caps lock light on (I couldn't get it off again), and it *did* come back > on when the machine resumed from RAM, though nothing else (network, usb, > etc.) worked. > > Using native ahci and the "test" suspend-to-disk, the system hangs. I > did this from init=/bin/bash with vga=794 (so I could see all output), > however, at least the last few lines match w/vga=0 (i.e., fb didn't > affect problem). The hand-copied (pardon any typos) output is: Some additional patches are needed for the AHCI suspend, AFAIK. I thought they were on the way to the mainline, but it looks like I was wrong. See: http://www.ussg.iu.edu/hypermail/linux/kernel/0607.2/0885.html Greetings, Rafael - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
