we can get some error log when run following commands: [root@osve-hp initial]#aplay /usr/share/sounds/*.* ALSA lib pcm_direct.c:866:(snd1_pcm_direct_initialize_slave) snd_pcm_hw_params_any failed ALSA lib pcm_dmix.c:1020:(snd_pcm_dmix_open) unable to initialize slave aplay: main:583: audio open error: Invalid argument we can not heard sound from earphone. OS is RHEL 5.4 Alpha Kernel is Linux osve-hp 2.6.18-154.el5 #1 SMP Wed Jun 17 17:51:55 EDT 2009 i686 i686 i386 GNU/Linux HW is Piketon + Havendale SDV
no such issue with x86_64 RHEL 5.4 Alpha
Piketon platform has IbexPeak chipset.
we can also see almost the same issue at Piketon + Lynnfiled SDV (IbexPeak chipset). Details is as follows: [root@osve-lp ~]# aplay /usr/share/sounds/*.wav ALSA lib pcm_direct.c:866:(snd1_pcm_direct_initialize_slave) snd_pcm_hw_params_any failed ALSA lib pcm_dmix.c:1020:(snd_pcm_dmix_open) unable to initialize slave aplay: main:583: audio open error: Invalid argument [root@osve-lp ~]# lsmod | grep snd snd_hda_intel 423953 1 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 3 snd_seq_dummy,snd_seq_oss,snd_seq snd_pcm_oss 42817 0 snd_mixer_oss 19009 1 snd_pcm_oss snd_pcm 72133 2 snd_hda_intel,snd_pcm_oss snd_timer 24517 2 snd_seq,snd_pcm snd_page_alloc 14281 2 snd_hda_intel,snd_pcm snd_hwdep 12869 1 snd_hda_intel snd 55749 11 snd_hda_intel,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_hwdep soundcore 11553 1 snd [root@osve-lp ~]# uname -a Linux osve-lp 2.6.18-154.el5 #1 SMP Wed Jun 17 17:51:55 EDT 2009 i686 i686 i386 GNU/Linux in dmesg, we can see hda_codec: Unknown model for ALC883, trying auto-probe from BIOS...
This bug might be similar to bug#509526 . Is x86_64 installation affected, too?
Lynnfield with RHEL 5.4 Beta x86_64 OS, we can get audio output although some issue with back pannel.
*** This bug has been marked as a duplicate of bug 509526 ***