I am not getting any sound after hibernating > [freedom at station2 ~]$ uname -a > Linux station2.domain2.example.com 2.6.18-92.1.22.el5 #1 SMP Tue Dec 16 12:03:43 EST 2008 i686 athlon i386 GNU/Linux > > [freedom at station2 ~]$ /sbin/lspci -v|grep -i audio > 00:07.0 Audio device: nVidia Corporation MCP67 High Definition Audio (rev a1) > 01:06.0 Multimedia audio controller: Creative Labs [SB Live! Value] EMU10k1X > > > [freedom at station2 ~]$ rpm -qa|grep -i alsa > alsa-lib-devel-1.0.14-1.rc4.el5 > alsa-kmdl-2.6.18-92.1.13.el5-1.0.17-70.el5 > alsa-lib-1.0.14-1.rc4.el5 > alsa-utils-1.0.14-3.rc4.el5 > [root at station2 freedom]# /sbin/lsmod |grep -i snd > snd_hda_intel 24793 2 > snd_hda_codec 210881 1 snd_hda_intel > snd_emu10k1x 21957 1 > snd_rawmidi 26561 1 snd_emu10k1x > snd_ac97_codec 93025 1 snd_emu10k1x > snd_seq_dummy 7877 0 > snd_seq_oss 32577 0 > snd_seq_midi_event 11073 1 snd_seq_oss > snd_seq 49585 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event > snd_seq_device 11725 4 snd_rawmidi,snd_seq_dummy,snd_seq_oss,snd_seq > snd_pcm_oss 42945 0 > snd_mixer_oss 19009 3 snd_pcm_oss > snd_pcm 72005 5 snd_hda_intel,snd_hda_codec,snd_emu10k1x,snd_ac97_codec,snd_pcm_oss > snd_timer 24517 2 snd_seq,snd_pcm > snd 52421 14 snd_hda_intel,snd_hda_codec,snd_emu10k1x,snd_rawmidi,snd_ac97_codec,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer > ac97_bus 6337 1 snd_ac97_codec > soundcore 11553 3 snd > snd_page_alloc 14281 3 snd_hda_intel,snd_emu10k1x,snd_pcm here are the logs after going to and waking from hibernation : from /var/log/messages: > Dec 22 14:20:10 station2 gnome-power-manager: (freedom) Hibernating computer because the DBUS method Hibernate() was invoked > Dec 22 14:20:13 station2 ntpd[5274]: ntpd exiting on signal 15 > Dec 22 14:20:15 station2 kernel: Disabling non-boot CPUs ... > Dec 22 14:20:15 station2 kernel: Breaking affinity for irq 50 > Dec 22 14:20:15 station2 kernel: Breaking affinity for irq 82 > Dec 22 14:20:15 station2 kernel: Breaking affinity for irq 106 > Dec 22 14:20:15 station2 kernel: CPU 1 is now offline > Dec 22 14:20:15 station2 kernel: SMP alternatives: switching to UP code > Dec 22 14:22:18 station2 kernel: CPU1 is down > Dec 22 14:22:18 station2 kernel: Stopping tasks: ==============================================================================================================================================| > Dec 22 14:22:18 station2 kernel: Shrinking memory... ^H-^H\^H|^H/^H-^H\^H|^H/^Hdone (110403 pages freed) > Dec 22 14:22:18 station2 kernel: usbdev5.1_ep81: PM: suspend 0->1, parent 5-0:1.0 already 1 > Dec 22 14:22:18 station2 kernel: usbdev4.1_ep81: PM: suspend 0->1, parent 4-0:1.0 already 1 > Dec 22 14:22:18 station2 kernel: ACPI: PCI interrupt for device 0000:01:07.2 disabled > Dec 22 14:22:18 station2 kernel: ACPI: PCI interrupt for device 0000:01:07.1 disabled > Dec 22 14:22:18 station2 kernel: ACPI: PCI interrupt for device 0000:01:07.0 disabled > Dec 22 14:22:18 station2 kernel: NVRM: RmPowerManagement: 3 > Dec 22 14:22:18 station2 kernel: ACPI: PCI interrupt for device 0000:00:09.0 disabled > Dec 22 14:22:18 station2 kernel: ACPI: PCI interrupt for device 0000:00:07.0 disabled > Dec 22 14:22:18 station2 kernel: ACPI: PCI interrupt for device 0000:00:04.1 disabled > Dec 22 14:22:18 station2 kernel: ACPI: PCI interrupt for device 0000:00:04.0 disabled > Dec 22 14:22:18 station2 restorecond: Read error (Interrupted system call) > Dec 22 14:22:19 station2 kernel: ACPI: PCI interrupt for device 0000:00:02.1 disabled > Dec 22 14:22:19 station2 kernel: ACPI: PCI interrupt for device 0000:00:02.0 disabled > Dec 22 14:22:19 station2 kernel: ....................... > Dec 22 14:22:19 station2 kernel: swsusp: Need to copy 67866 pages > Dec 22 14:22:19 station2 kernel: Intel machine check architecture supported. > Dec 22 14:22:19 station2 kernel: Intel machine check reporting enabled on CPU#0. > Dec 22 14:22:19 station2 kernel: swsusp: Restoring Highmem > Dec 22 14:22:19 station2 kernel: PCI: Enabling device 0000:00:02.0 (0000 -> 0002) > Dec 22 14:22:19 station2 kernel: ACPI: PCI Interrupt 0000:00:02.0[A] -> Link [LUB0] -> GSI 21 (level, low) -> IRQ 66 > Dec 22 14:22:20 station2 kernel: PCI: Enabling device 0000:00:02.1 (0000 -> 0002) > Dec 22 14:22:20 station2 kernel: ACPI: PCI Interrupt 0000:00:02.1[B] -> Link [LUB2] -> GSI 23 (level, low) -> IRQ 233 > Dec 22 14:22:21 station2 kernel: usb usb1: root hub lost power or was reset > Dec 22 14:22:21 station2 kernel: ehci_hcd 0000:00:02.1: debug port 1 > Dec 22 14:22:21 station2 kernel: ehci_hcd 0000:00:02.1: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004 > Dec 22 14:22:21 station2 kernel: PCI: Enabling device 0000:00:04.0 (0000 -> 0002) > Dec 22 14:22:21 station2 kernel: ACPI: PCI Interrupt 0000:00:04.0[A] -> Link [UB11] -> GSI 20 (level, low) -> IRQ 74 > Dec 22 14:22:21 station2 kernel: PCI: Enabling device 0000:00:04.1 (0000 -> 0002) > Dec 22 14:22:21 station2 kernel: ACPI: PCI Interrupt 0000:00:04.1[B] -> Link [UB12] -> GSI 22 (level, low) -> IRQ 50 > Dec 22 14:22:21 station2 kernel: usb usb2: root hub lost power or was reset > Dec 22 14:22:21 station2 kernel: ehci_hcd 0000:00:04.1: debug port 1 > Dec 22 14:22:21 station2 kernel: ehci_hcd 0000:00:04.1: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004 > Dec 22 14:22:21 station2 kernel: PCI: Enabling device 0000:00:07.0 (0000 -> 0002) > Dec 22 14:22:21 station2 kernel: ACPI: PCI Interrupt 0000:00:07.0[A] -> Link [LAZA] -> GSI 20 (level, low) -> IRQ 74 > Dec 22 14:22:21 station2 kernel: ACPI: PCI Interrupt 0000:00:09.0[A] -> Link [LSA0] -> GSI 23 (level, low) -> IRQ 233 > Dec 22 14:22:21 station2 kernel: NVRM: RmPowerManagement: 5 > Dec 22 14:22:21 station2 kernel: PCI: Enabling device 0000:01:07.0 (0110 -> 0111) > Dec 22 14:22:21 station2 kernel: ACPI: PCI Interrupt 0000:01:07.0[A] -> Link [LNKB] -> GSI 18 (level, low) -> IRQ 82 > Dec 22 14:22:21 station2 kernel: PCI: Enabling device 0000:01:07.1 (0110 -> 0111) > Dec 22 14:22:21 station2 kernel: ACPI: PCI Interrupt 0000:01:07.1[B] -> Link [LNKC] -> GSI 17 (level, low) -> IRQ 90 > Dec 22 14:22:21 station2 kernel: PCI: Enabling device 0000:01:07.2 (0110 -> 0112) > Dec 22 14:22:21 station2 kernel: ACPI: PCI Interrupt 0000:01:07.2[C] -> Link [LNKD] -> GSI 19 (level, low) -> IRQ 58 > Dec 22 14:22:21 station2 kernel: pnp: Failed to activate device 00:08. > Dec 22 14:22:21 station2 kernel: ata4: SATA link down (SStatus 0 SControl 300) > Dec 22 14:22:21 station2 kernel: Restarting tasks... done > Dec 22 14:22:21 station2 kernel: Enabling non-boot CPUs ... > Dec 22 14:22:21 station2 kernel: SMP alternatives: switching to SMP code > Dec 22 14:22:21 station2 kernel: Booting processor 1/1 eip 3000 > Dec 22 14:22:21 station2 kernel: CPU 1 irqstacks, hard=c074d000 soft=c072d000 > Dec 22 14:22:21 station2 kernel: Initializing CPU#1 > Dec 22 14:22:21 station2 kernel: Calibrating delay using timer specific routine.. 2000.18 BogoMIPS (lpj=1000092) > Dec 22 14:22:21 station2 kernel: CPU: Vendor unknown, using generic init. > Dec 22 14:22:21 station2 kernel: CPU: Your system may be unstable. > Dec 22 14:22:21 station2 kernel: CPU1: AuthenticAMD AMD Athlon(tm) 64 X2 Dual Core Processor 4800+ stepping 02 > Dec 22 14:22:21 station2 kernel: CPU1 is up > Dec 22 14:22:21 station2 kernel: ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) > Dec 22 14:22:21 station2 kernel: ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) > Dec 22 14:22:21 station2 kernel: ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300) > Dec 22 14:22:21 station2 kernel: ata2.00: configured for UDMA/133 > Dec 22 14:22:21 station2 kernel: SCSI device sdb: 312581808 512-byte hdwr sectors (160042 MB) > Dec 22 14:22:21 station2 kernel: sdb: Write Protect is off > Dec 22 14:22:21 station2 kernel: SCSI device sdb: drive cache: write back > Dec 22 14:22:21 station2 kernel: ata3.00: configured for UDMA/133 > Dec 22 14:22:21 station2 kernel: SCSI device sdc: 312581808 512-byte hdwr sectors (160042 MB) > Dec 22 14:22:21 station2 kernel: sdc: Write Protect is off > Dec 22 14:22:22 station2 kernel: SCSI device sdc: drive cache: write back > Dec 22 14:22:22 station2 kernel: ata1.00: configured for UDMA/133 > Dec 22 14:22:22 station2 kernel: SCSI device sda: 312581808 512-byte hdwr sectors (160042 MB) > Dec 22 14:22:22 station2 kernel: sda: Write Protect is off > Dec 22 14:22:22 station2 kernel: SCSI device sda: drive cache: write back > Dec 22 14:22:22 station2 gnome-power-manager: (freedom) Resuming computer > Dec 22 14:22:42 station2 ntpd[6599]: ntpd 4.2.2p1 at 1.1570-o Tue Jun 10 00:07:18 UTC 2008 (1) > Dec 22 14:22:42 station2 ntpd[6600]: precision = 1.000 usec > Dec 22 14:22:42 station2 ntpd[6600]: Listening on interface wildcard, 0.0.0.0#123 Disabled > Dec 22 14:22:42 station2 ntpd[6600]: Listening on interface wildcard, ::#123 Disabled > Dec 22 14:22:42 station2 ntpd[6600]: Listening on interface lo, ::1#123 Enabled > Dec 22 14:22:42 station2 ntpd[6600]: Listening on interface eth0, fe80::21d:60ff:fe80:f35a#123 Enabled > Dec 22 14:22:42 station2 ntpd[6600]: Listening on interface lo, 127.0.0.1#123 Enabled > Dec 22 14:22:42 station2 ntpd[6600]: Listening on interface eth0, 192.168.1.2#123 Enabled > Dec 22 14:22:42 station2 ntpd[6600]: kernel time sync status 0040 > Dec 22 14:22:44 station2 ntpd[6600]: frequency initialized -33.752 PPM from /var/lib/ntp/drift > the only message i found in the list while searching was this : http://lists.centos.org/pipermail/centos/2008-January/050910.html googling i found some hints related to ubuntu to change some hibernation option in /etc/default/acpi-support but is there some file like that in CentOS 5.2 because when i do "sudo find / -name acpi-support" and supplying my normal user password it does not return anything.