I obtained a HP dc7600 small-form-factor desktop for PCLOS use. The sound worked fine on the LiveCD (2012) but disappeared after the second re-boot. No settings have any effect.
I believe I have found the issue resolved (with no mention of what Linux OS) at the following location:
http://www.mattb.net.nz/blog/2006/08/05/working-sound-on-an-hp-dc7600/This refers to "ALSA Bug #2157 which fixes an identical problem for a different motherboard (Subsystem 0×3012) by using the ALC260_HP_3013 mapping in the driver".
A text of a patch to correct the problem is provided, however, I cannot find similar directory entries in PCLOS.
I am pretty sure this patch would correct my problem if it was tailored to PCLOS and I knew how to generate a patch from a text file and apply it.
If someone could point me in the right direction and provide simple instructions for generating and applying this patch for PCLOS it would be most appreciated.
lspci output below:
[linuxuser@localhost ~]$ lspci
00:00.0 Host bridge: Intel Corporation 82945G/GZ/P/PL Memory Controller Hub (rev 02)
00:02.0 VGA compatible controller: Intel Corporation 82945G/GZ Integrated Graphics Controller (rev 02)
00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 01)
00:1c.0 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 1 (rev 01)
00:1c.1 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 2 (rev 01)
00:1d.0 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #1 (rev 01)
00:1d.1 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #2 (rev 01)
00:1d.2 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #3 (rev 01)
00:1d.3 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #4 (rev 01)
00:1d.7 USB controller: Intel Corporation N10/ICH 7 Family USB2 EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev e1)
00:1f.0 ISA bridge: Intel Corporation 82801GB/GR (ICH7 Family) LPC Interface Bridge (rev 01)
00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 01)
00:1f.2 IDE interface: Intel Corporation N10/ICH7 Family SATA Controller [IDE mode] (rev 01)
3f:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5752 Gigabit Ethernet PCI Express (rev 01)
"Patch below" info from website cited above:
--- sound/pci/hda/patch_realtek.c.orig 2006-08-05 21:13:49.000000000 +1200
+++ sound/pci/hda/patch_realtek.c 2006-08-05 20:33:17.000000000 +1200
@@ -2951,7 +2951,7 @@
{ .pci_subvendor = 0x152d, .pci_subdevice = 0x0729,
.config = ALC260_BASIC }, /* CTL Travel Master U553W */
{ .modelname = "hp", .config = ALC260_HP },
- { .pci_subvendor = 0x103c, .pci_subdevice = 0x3010, .config = ALC260_HP },
+ { .pci_subvendor = 0x103c, .pci_subdevice = 0x3010, .config = ALC260_HP_3013 },
{ .pci_subvendor = 0x103c, .pci_subdevice = 0x3011, .config = ALC260_HP },
{ .pci_subvendor = 0x103c, .pci_subdevice = 0x3012, .config = ALC260_HP },
{ .pci_subvendor = 0x103c, .pci_subdevice = 0x3013, .config = ALC260_HP_3013 },
