$ emerge --info Portage 2.1.1-r1 (default-linux/amd64/2005.0, gcc-3.4.6, glibc-2.3.6-r4, 2.6.17-gentoo-r8 x86_64) ================================================================= System uname: 2.6.17-gentoo-r8 x86_64 AMD Athlon(tm) 64 Processor 3000+ Gentoo Base System version 1.12.5 Last Sync: Sat, 30 Sep 2006 22:20:01 +0000 app-admin/eselect-compiler: [Not Present] dev-java/java-config: 1.2.11-r1 dev-lang/python: 2.3.5-r2, 2.4.3-r4 dev-python/pycrypto: 2.0.1-r5 dev-util/ccache: [Not Present] dev-util/confcache: [Not Present] sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.13, 2.59-r7 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2 sys-devel/binutils: 2.16.1-r3 sys-devel/gcc-config: 1.3.13-r3 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.11-r2 ACCEPT_KEYWORDS="amd64" AUTOCLEAN="yes" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=athlon64 -O2" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config /usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/ /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/share/texmf/xdvi/" CONFIG_PROTECT_MASK="/etc/env.d /etc/gconf /etc/revdep-rebuild /etc/terminfo" CXXFLAGS="-march=athlon64 -O2" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks metadata-transfer sandbox sfperms strict" GENTOO_MIRRORS="http://www.mirror.ac.uk/mirror/distro.ibiblio.org/pub/linux/distributions/gentoo/ " PKGDIR="/usr/portage/packages" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude='/distfiles' --exclude='/local' --exclude='/packages'" PORTAGE_TMPDIR="/home/roger/tmp" PORTDIR="/usr/portage" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="amd64 X alsa avi berkdb bitmap-fonts cli crypt dlloader dri dvdread eds elibc_glibc emboss encode f77 foomaticdb fortran gif gnome gpm gstreamer gtk gtk2 imlib input_devices_evdev input_devices_keyboard input_devices_mouse ipv6 isdnlog jpeg kde kernel_linux lzw lzw-tiff mp3 mpeg ncurses nls opengl pam pcre pdflib perl png pppd python qt3 qt4 quicktime readline reflection sdl session spell spl ssl tcpd tiff truetype-fonts type1-fonts usb userland_GNU video_cards_ati video_cards_radeon video_cards_vesa video_cards_vga xorg xpm xv xvid zlib" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, LINGUAS, MAKEOPTS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY $ /usr/sbin/lspci 00:00.0 Host bridge: VIA Technologies, Inc. VT8385 [K8T800 AGP] Host Bridge (rev 01) 00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI bridge [K8T800/K8T890 South] 00:0a.0 Network controller: Intersil Corporation ISL3890 [Prism GT/Prism Duette]/ISL3886 [Prism Javelin/Prism Xbow] (rev 01) 00:0b.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev aa) 00:0b.1 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev aa) 00:0b.2 FireWire (IEEE 1394): Ricoh Co Ltd R5C552 IEEE 1394 Controller (rev 02) 00:0c.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5788 Gigabit Ethernet (rev 03) 00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80) 00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80) 00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80) 00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82) 00:11.0 ISA bridge: VIA Technologies, Inc. VT8235 ISA Bridge 00:11.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06) 00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 50) 00:11.6 Communication controller: VIA Technologies, Inc. AC'97 Modem Controller (rev 80) 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control 01:00.0 VGA compatible controller: ATI Technologies Inc RV350 [Mobility Radeon 9600 M10] Hardware: Acer Aspire 1501LMi (with original broadcom wifi mini-pci card replaced with generic prism card) With kernel 2.6.8 using the kernel-supplied driver, sound with via82xx.o driver works perfectly. With any later kernel, the kernel-supplied driver fails to find the card, giving messages such as snd: Unknown parameter `device_mode' snd_seq_device: Unknown symbol snd_info_register snd_seq_device: Unknown symbol snd_info_create_module_entry snd_seq_device: Unknown symbol snd_info_free_entry snd_seq_device: Unknown symbol snd_seq_root snd_seq_device: Unknown symbol snd_iprintf snd_seq_device: Unknown symbol snd_device_new snd_seq_device: Unknown symbol snd_info_unregister snd_rawmidi: Unknown symbol snd_info_register snd_rawmidi: Unknown symbol snd_ctl_unregister_ioctl_compat snd_rawmidi: Unknown symbol snd_seq_device_new snd_rawmidi: Unknown symbol snd_info_free_entry snd_rawmidi: Unknown symbol snd_unregister_oss_device snd_rawmidi: Unknown symbol snd_register_oss_device . . . etc in dmesg. (I'd paste the whole dmesg file but it is 325 lines long) The sound module fails to load. With alsa-device package (and the kernel alsa sound turned off as per the instructions in http://www.gentoo.org/doc/en/alsa-guide.xml) the module loads, but the devices, while present in /dev, do not exist: $ aplay track01.cdda.wav ALSA lib confmisc.c:670:(snd_func_card_driver) cannot find card '0' ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_card_driver returned error: No such device ALSA lib confmisc.c:391:(snd_func_concat) error evaluating strings ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_concat returned error: No such device ALSA lib confmisc.c:1070:(snd_func_refer) error evaluating name ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_refer returned error: No such device ALSA lib conf.c:3947:(snd_config_expand) Evaluate error: No such device ALSA lib pcm.c:2146:(snd_pcm_open_noupdate) Unknown PCM default aplay: main:547: audio open error: No such device This used to be no problem; I'd simply keep using kernel 2.6.8. Now, however, emerge -uv system wants to install glibc2.4, which fails with: fatal: kernel too old with kernel 2.6.8 Any advice on how to get sound working on this machine gratefully received.
Do you have alsa-utils installed and did /etc/init.d/alsasound start?
See comment #1. Plus, if you have lines with device_mode" in /etc/modules.d/alsa, remove them.
(In reply to comment #1) > Do you have alsa-utils installed and did /etc/init.d/alsasound start? > Yes to both. However, although started, the starting process is not successful: # /etc/init.d/alsasound start * Loading ALSA modules ... * Loading: snd-card-0 ... [ ok ] * Loading: snd-seq ... [ ok ] * Restoring Mixer Levels ... /usr/sbin/alsactl: load_state:1250: Cannot find soundcard '0'... * Errors while restoring defaults, ignoring [ ok ] Although it cannot find soundcard '0', the modules are loaded: # lsmod | grep snd snd_seq 50816 0 snd_via82xx 24416 0 snd_ac97_codec 103448 1 snd_via82xx snd_ac97_bus 2624 1 snd_ac97_codec snd_pcm 81740 2 snd_via82xx,snd_ac97_codec snd_timer 20168 2 snd_seq,snd_pcm snd_page_alloc 8656 2 snd_via82xx,snd_pcm snd_mpu401_uart 6848 1 snd_via82xx snd_rawmidi 20288 1 snd_mpu401_uart snd_seq_device 7760 2 snd_seq,snd_rawmidi snd 47024 8 snd_seq,snd_via82xx,snd_ac97_codec,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi,snd_seq_device (In reply to comment #2) > See comment #1. Plus, if you have lines with device_mode" in > /etc/modules.d/alsa, remove them. > The only non-commented lines in /etc/modules.d/alsa are these: alias /dev/mixer snd-mixer-oss alias /dev/dsp snd-pcm-oss alias /dev/midi snd-seq-oss alias snd-card-0 snd-via82xx alias sound-slot-0 snd-via82xx (The file was generated by alsaconf)
Excuse me, but why has this been marked RESOLVED, when it is not? At the moment is is impossible for me to fix security issues because portage requires glibc2.4 the building of which fatally dies with kernel 2.6.8; any later kernel than 2.6.8 effectively removes sound from the system. I might add that when booting from a Gentoo LiveCD (2006.1) I get exactly the same sound failures.
Reopening because the "resolution" did not resolve the problem.
(In reply to comment #0) > snd: Unknown parameter `device_mode' > snd_seq_device: Unknown symbol snd_info_register > snd_seq_device: Unknown symbol snd_info_create_module_entry > snd_seq_device: Unknown symbol snd_info_free_entry > snd_seq_device: Unknown symbol snd_seq_root Please confirm that these messages still appear in your latest tests. Then attach /etc/modules.conf and /etc/modprobe.conf to this bug.
Created attachment 99482 [details] /etc/modprobe.conf
Created attachment 99483 [details] /etc/modules.conf
(In reply to comment #6) > (In reply to comment #0) > > snd: Unknown parameter `device_mode' > > snd_seq_device: Unknown symbol snd_info_register > > snd_seq_device: Unknown symbol snd_info_create_module_entry > > snd_seq_device: Unknown symbol snd_info_free_entry > > snd_seq_device: Unknown symbol snd_seq_root > > Please confirm that these messages still appear in your latest tests. Then > attach /etc/modules.conf and /etc/modprobe.conf to this bug. > The above messages appear only when using the kernel-supplied sound driver modules. With the alsa-driver package supplied modules, they do not appear. However, with the alsa-devices-suppled sound modules, the modules load, but give these errors to stderr when the sound card is accessed: $ aplay track01.cdda.wav ALSA lib confmisc.c:670:(snd_func_card_driver) cannot find card '0' ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_card_driver returned error: No such device ALSA lib confmisc.c:391:(snd_func_concat) error evaluating strings ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_concat returned error: No such device ALSA lib confmisc.c:1070:(snd_func_refer) error evaluating name ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_refer returned error: No such device ALSA lib conf.c:3947:(snd_config_expand) Evaluate error: No such device ALSA lib pcm.c:2146:(snd_pcm_open_noupdate) Unknown PCM default aplay: main:547: audio open error: No such device This is the current state of the machine: it seems to be in a more advanced state than when using the kernel-suppled modules (which fail to load at all). I've attached /etc/modprobe.conf and /etc/modules.conf as requested.
Please stop using the portage alsa-drivers package, as in kernel we only support the kernel versions. After unmerging alsa-driver, be sure to completely remove /lib/modules/<kernel version>/alsa-driver to prevent conflicts with the in-kernel stuff. Then, rebuild the alsa-driver kernel modules, try to load them, they will fail in the way you describe, then attach full dmesg output to this bug.
(In reply to comment #10) > Please stop using the portage alsa-drivers package, as in kernel we only > support the kernel versions. After unmerging alsa-driver, be sure to completely > remove /lib/modules/<kernel version>/alsa-driver to prevent conflicts with the > in-kernel stuff. OK. > Then, rebuild the alsa-driver kernel modules, try to load them, they will fail > in the way you describe, then attach full dmesg output to this bug. This is what I have done. # emerge -C alsa-driver # rm -rf /lib/modules/2.6.17-gentoo-r8/alsa-driver # cd /usr/src/linux (which is a symlink to /usr/src/linux-2.6.17-gentoo-r8) # make menuconfig (set sound up to use the kernel drivers -- I can attach the .config if you need it) # make clean;make;make modules_install # mount /boot # cp arch/x86_64/boot/bzImage /boot/bzImage-2.6.17-gentoo-r8 (made sure that grub would access this kernel) # sync #/sbin/shutdown -r now Rebooted into this new kernel, and things are different from that which I initially described. The "unknown symbol" messages no longer appear in dmesg, the modules do load, but I still get the "cannot find card '0'" message whenI try to access the sound card. $ uname -a Linux amber.rogerhome.net 2.6.17-gentoo-r8 #5 Fri Oct 13 23:20:47 BST 2006 x86_64 AMD Athlon(tm) 64 Processor 3000+ GNU/Linux $ file track01.cdda.wav track01.cdda.wav: RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, stereo 44100 Hz $ aplay track01.cdda.wav ALSA lib confmisc.c:670:(snd_func_card_driver) cannot find card '0' ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_card_driver returned error: No such device ALSA lib confmisc.c:391:(snd_func_concat) error evaluating strings ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_concat returned error: No such device ALSA lib confmisc.c:1070:(snd_func_refer) error evaluating name ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_refer returned error: No such device ALSA lib conf.c:3947:(snd_config_expand) Evaluate error: No such device ALSA lib pcm.c:2146:(snd_pcm_open_noupdate) Unknown PCM default aplay: main:547: audio open error: No such device $ lsmod Module Size Used by ide_cd 38496 0 cdrom 36648 1 ide_cd ohci_hcd 18692 0 usbhid 31812 0 snd_via82xx_modem 12812 0 i2c_viapro 8792 0 ehci_hcd 27848 0 uhci_hcd 21080 0 ohci1394 29960 0 ieee1394 90872 1 ohci1394 yenta_socket 24460 0 rsrc_nonstatic 10880 1 yenta_socket pcmcia_core 36060 2 yenta_socket,rsrc_nonstatic prism54 52232 0 firmware_class 9088 1 prism54 joydev 9792 0 snd_pcm_oss 39840 0 snd_mixer_oss 16064 1 snd_pcm_oss snd_seq_oss 31296 0 snd_seq_midi_event 6912 1 snd_seq_oss snd_seq 50176 4 snd_seq_oss,snd_seq_midi_event usbcore 121888 5 ohci_hcd,usbhid,ehci_hcd,uhci_hcd snd_via82xx 24224 0 snd_ac97_codec 103000 2 snd_via82xx_modem,snd_via82xx snd_ac97_bus 2624 1 snd_ac97_codec snd_pcm 81868 4 snd_via82xx_modem,snd_pcm_oss,snd_via82xx,snd_ac97_codec snd_timer 20168 2 snd_seq,snd_pcm snd_page_alloc 8272 3 snd_via82xx_modem,snd_via82xx,snd_pcm snd_mpu401_uart 6720 1 snd_via82xx snd_rawmidi 21856 1 snd_mpu401_uart snd_seq_device 7504 3 snd_seq_oss,snd_seq,snd_rawmidi snd 52008 12 snd_via82xx_modem,snd_pcm_oss,snd_mixer_oss,snd_seq_oss,snd_seq,snd_via82xx,snd_ac97_codec,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi,snd_seq_device lp 10952 0 tg3 98116 0 I've attached the dmesg.
Created attachment 99604 [details] dmesg with kernel-supplied sound drivers
Please post output of: lspci -n ls -l "/sys/bus/pci/0000:00:11.5" cat /proc/asound/cards cat /proc/interrupts Please also attach "cat /proc/interrupts" from 2.6.8 as well as dmesg there.
(In reply to comment #13) > Please post output of: > > lspci -n 00:00.0 0600: 1106:3188 (rev 01) 00:01.0 0604: 1106:b188 00:0a.0 0280: 1260:3890 (rev 01) 00:0b.0 0607: 1180:0476 (rev aa) 00:0b.1 0607: 1180:0476 (rev aa) 00:0b.2 0c00: 1180:0552 (rev 02) 00:0c.0 0200: 14e4:169c (rev 03) 00:10.0 0c03: 1106:3038 (rev 80) 00:10.1 0c03: 1106:3038 (rev 80) 00:10.2 0c03: 1106:3038 (rev 80) 00:10.3 0c03: 1106:3104 (rev 82) 00:11.0 0601: 1106:3177 00:11.1 0101: 1106:0571 (rev 06) 00:11.5 0401: 1106:3059 (rev 50) 00:11.6 0780: 1106:3068 (rev 80) 00:18.0 0600: 1022:1100 00:18.1 0600: 1022:1101 00:18.2 0600: 1022:1102 00:18.3 0600: 1022:1103 01:00.0 0300: 1002:4e50 > ls -l "/sys/bus/pci/0000:00:11.5" ls: /sys/bus/pci/0000:00:11.5: No such file or directory however, this file does exist: # ls -l "/sys/bus/pci/devices/0000:00:11.5" lrwxrwxrwx 1 root root 0 Oct 14 23:36 /sys/bus/pci/devices/0000:00:11.5 -> ../../../devices/pci0000:00/0000:00:11.5 and the pointed-to file is: # ls -l "/sys/devices/pci0000:00/0000:00:11.5" total 0 drwxr-xr-x 3 root root 0 Oct 14 23:52 0-0:VIA1612A lrwxrwxrwx 1 root root 0 Oct 14 23:51 bus -> ../../../bus/pci -r--r--r-- 1 root root 4096 Oct 14 23:36 class -rw-r--r-- 1 root root 256 Oct 14 23:43 config -r--r--r-- 1 root root 4096 Oct 14 23:36 device lrwxrwxrwx 1 root root 0 Oct 14 23:51 driver -> ../../../bus/pci/drivers/VIA 82xx Audio -r--r--r-- 1 root root 4096 Oct 14 23:43 irq -r--r--r-- 1 root root 4096 Oct 14 23:51 local_cpus -r--r--r-- 1 root root 4096 Oct 14 23:51 modalias drwxr-xr-x 2 root root 0 Oct 14 23:52 power -r--r--r-- 1 root root 4096 Oct 14 23:43 resource -rw------- 1 root root 256 Oct 14 23:51 resource0 lrwxrwxrwx 1 root root 0 Oct 14 23:51 sound:adsp -> ../../../class/sound/adsp lrwxrwxrwx 1 root root 0 Oct 14 23:51 sound:audio -> ../../../class/sound/audio lrwxrwxrwx 1 root root 0 Oct 14 23:51 sound:controlC0 -> ../../../class/sound/controlC0 lrwxrwxrwx 1 root root 0 Oct 14 23:51 sound:dsp -> ../../../class/sound/dsp lrwxrwxrwx 1 root root 0 Oct 14 23:51 sound:mixer -> ../../../class/sound/mixer lrwxrwxrwx 1 root root 0 Oct 14 23:51 sound:pcmC0D0c -> ../../../class/sound/pcmC0D0c lrwxrwxrwx 1 root root 0 Oct 14 23:51 sound:pcmC0D0p -> ../../../class/sound/pcmC0D0p lrwxrwxrwx 1 root root 0 Oct 14 23:51 sound:pcmC0D1c -> ../../../class/sound/pcmC0D1c lrwxrwxrwx 1 root root 0 Oct 14 23:51 sound:pcmC0D1p -> ../../../class/sound/pcmC0D1p -r--r--r-- 1 root root 4096 Oct 14 23:36 subsystem_device -r--r--r-- 1 root root 4096 Oct 14 23:36 subsystem_vendor --w------- 1 root root 4096 Oct 14 23:51 uevent -r--r--r-- 1 root root 4096 Oct 14 23:36 vendor > cat /proc/asound/cards 0 [V8235 ]: VIA8233 - VIA 8235 VIA 8235 with VIA1612A at 0x1400, irq 19 1 [modem ]: VIA82XX-MODEM - VIA 82XX modem VIA 82XX modem at 0x1800, irq 19 > cat /proc/interrupts CPU0 0: 312718 IO-APIC-edge timer 1: 1661 IO-APIC-edge i8042 8: 0 IO-APIC-edge rtc 9: 125 IO-APIC-level acpi 12: 2130 IO-APIC-edge i8042 14: 10031 IO-APIC-edge ide0 15: 27 IO-APIC-edge ide1 16: 0 IO-APIC-level yenta 17: 0 IO-APIC-level yenta 18: 12840 IO-APIC-level eth0 19: 0 IO-APIC-level VIA8233, VIA82XX-MODEM 20: 59231 IO-APIC-level eth1, uhci_hcd:usb1, uhci_hcd:usb2, uhci_hcd:usb3, ehci_hcd:usb4 21: 2 IO-APIC-level ohci1394 NMI: 105 LOC: 312700 ERR: 0 MIS: 0 > > Please also attach "cat /proc/interrupts" from 2.6.8 as well as dmesg there. > OK, I'll do that after a reboot...
Created attachment 99690 [details] cat /proc/interrupts with 2.6.8 kernel
Created attachment 99691 [details] dmesg with 2.6.8 kernel
Strange. How about these: ls -l /dev/snd ls -l /dev/sound ls -l /dev/dsp
(In reply to comment #17) > Strange. How about these: > > ls -l /dev/snd > ls -l /dev/sound > ls -l /dev/dsp > With 2.6.17-gentoo-r8 kernel: $ ls -l /dev/snd ls: /dev/snd: No such file or directory $ ls -l /dev/sound ls: /dev/sound: No such file or directory $ ls -l /dev/dsp crw-rw---- 1 root audio 14, 3 Feb 2 2004 /dev/dsp With 2.6.8 kernel: $ ls -l /dev/snd total 0 crw-rw---- 1 root audio 116, 0 Jan 1 1970 controlC0 crw-rw---- 1 root audio 116, 24 Jan 1 1970 pcmC0D0c crw-rw---- 1 root audio 116, 16 Jan 1 1970 pcmC0D0p crw-rw---- 1 root audio 116, 25 Jan 1 1970 pcmC0D1c crw-rw---- 1 root audio 116, 17 Jan 1 1970 pcmC0D1p crw-rw---- 1 root audio 116, 1 Jan 1 1970 seq crw-rw---- 1 root audio 116, 33 Jan 1 1970 timer roger@amber ~ $ $ ls -l /dev/sound total 0 crw-rw---- 1 root audio 14, 12 Jan 1 1970 adsp crw-rw---- 1 root audio 14, 4 Jan 1 1970 audio crw-rw---- 1 root audio 14, 3 Jan 1 1970 dsp crw-rw---- 1 root audio 14, 0 Jan 1 1970 mixer crw-rw---- 1 root audio 14, 1 Jan 1 1970 sequencer crw-rw---- 1 root audio 14, 8 Jan 1 1970 sequencer2 $ ls -l /dev/dsp lr-xr-xr-x 1 root root 9 Oct 15 22:21 /dev/dsp -> sound/dsp
Ha, I've sorted it. Kernel 2.6.8 was using devfs. 2.6.17 has to use udev, but I had not emerged udev. As a result, only the hard-wired devices in /dev worked. Sound not working was only a symptom of no dynamic devices being created. After emerging udev and rebooting, sound now works. Bug now marked resolved invalid; as it was operator error not a true bug. Sorry to waste your time.
