4 days ago I had Ubuntu Lucid running on this computer. Suspend and resume worked flawlessly every time.
Then I upgraded to Ubuntu Precise. Suspend seems to work, but resume fails every time. The video never initializes. By the flashing keyboard lights, I guess it's a kernel panic. It fails from the Live CD and from a fresh install. Here is my debug so far. Install all updates (3.2 kernel, nouveau driver) Reboot Try suspend = fails Install Ubuntu's linux-generic-lts-quantal (3.5 kernel, nouveau driver) Reboot Try suspend = fails Install nVidia's 304 driver Reboot Try suspend = fails >From within X: echo core > /sys/power/pm_test echo mem > /sys/power/state The system acts like it is going to sleep, and then wakes up a few seconds later. dmesg shows: [ 1230.083404] ------------[ cut here ]------------ [ 1230.083410] WARNING: at /build/buildd/linux-lts-quantal-3.5.0/kernel/power/suspend_test.c:53 suspend_test_finish+0x86/0x90() [ 1230.083411] Hardware name: To Be Filled By O.E.M. [ 1230.083412] Component: resume devices, time: 14424 [ 1230.083412] Modules linked in: snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq_midi_emul bnep rfcomm parport_pc ppdev nvidia(PO) snd_emu10k1 snd_ac97_codec ac97_bus snd_pcm snd_page_alloc snd_util_mem snd_hwdep snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer coretemp snd_seq_device kvm_intel kvm snd ghash_clmulni_intel soundcore aesni_intel btusb cryptd aes_x86_64 bluetooth i7core_edac edac_core microcode mac_hid lpc_ich mxm_wmi shpchp serio_raw wmi hid_generic lp parport usbhid hid r8169 pata_marvell [ 1230.083445] Pid: 3329, comm: bash Tainted: P O 3.5.0-21-generic #32~precise1-Ubuntu [ 1230.083446] Call Trace: [ 1230.083448] [<ffffffff81052c9f>] warn_slowpath_common+0x7f/0xc0 [ 1230.083452] [<ffffffff81052d96>] warn_slowpath_fmt+0x46/0x50 [ 1230.083455] [<ffffffff8109b836>] suspend_test_finish+0x86/0x90 [ 1230.083457] [<ffffffff8109b53b>] suspend_devices_and_enter+0x10b/0x200 [ 1230.083460] [<ffffffff8109b701>] enter_state+0xd1/0x100 [ 1230.083463] [<ffffffff8109b74b>] pm_suspend+0x1b/0x60 [ 1230.083465] [<ffffffff8109a7a5>] state_store+0x45/0x70 [ 1230.083467] [<ffffffff81331d2f>] kobj_attr_store+0xf/0x30 [ 1230.083471] [<ffffffff811f77ff>] sysfs_write_file+0xef/0x170 [ 1230.083476] [<ffffffff811879d3>] vfs_write+0xb3/0x180 [ 1230.083480] [<ffffffff81187cfa>] sys_write+0x4a/0x90 [ 1230.083483] [<ffffffff816a6e69>] system_call_fastpath+0x16/0x1b [ 1230.083488] ---[ end trace 839cdd0078b3ce03 ]--- Boot with init=/bin/bash unload all modules except USBHID echo core > /sys/power/pm_test echo mem > /sys/power/state system acts like it is going to sleep, and then wakes up a few seconds later echo none > /sys/power/pm_test echo mem > /sys/power/state system goes to sleep press power to resume = fails At this point I am stumped on how to debug. This is a "modern" computer with no serial ports. It worked under Lucid, so I know it is POSSIBLE. Mobo: ASRock X58 single-socket CPU: Westmere 6 core (12 hyperthreads) 3.2 GHz RAM: 12 GB ECC Disk: sda = Intel SSD, mounted on / Disk: sdb = Intel SSD, not mounted Disk: sdc = Seagate HDD, not mounted Disk: sdd = Seagate HDD, not mounted NIC = Onboard RTL8168e/8111e Sound = EMU1212 (emu10k1, not even configured yet) Video = nVidia GeForce 7600 GT KB = PS2 (also tried USB) Mouse = USB I have not updated to a more current kernel than 3.5, but I will if there's evidence that this is resolved. Any other clever trick to try? Tim -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
