HDMI Sound kernel 2.6.26 and 2.6.27 Catalyst

[forum1793]

I recently tried the Catalyst 8.10 drivers. They worked OK with my 2.6.25.16 and .18 kernels regarding sound over hdmi. However, kernels 2.6.26.3 and .6 do not allow sound over hdmi. In these newer kernels sound does work over optical. I've reviewed kernel settings briefly and do not see any obvious settings that would preclude it working.

I've also been unable to get Cat 8.10 working with 2.6.27 kernels. Some patches are needed but I haven't found (or tried) to fix these for slackware 12.1 to work. What does 2.6.27 give us anyway?

I like 2.6.26 kernels because my tvcard, Haup 1600 works whereas additional stuff is needed for it to work in earlier kernels.

I have gigabyte 780g board (ma...sh2). Relevant kernel settings used:

#
# Sound
#
CONFIG_SOUND=m

#
# Advanced Linux Sound Architecture
#
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_RAWMIDI=m
CONFIG_SND_SEQUENCER=m
# CONFIG_SND_SEQ_DUMMY is not set
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
# CONFIG_SND_RTCTIMER is not set
# CONFIG_SND_DYNAMIC_MINORS is not set
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y

#
# Generic devices
#
# CONFIG_SND_PCSP is not set
CONFIG_SND_MPU401_UART=m
# CONFIG_SND_DUMMY is not set
CONFIG_SND_VIRMIDI=m
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_SERIAL_U16550 is not set
CONFIG_SND_MPU401=m

#
# PCI devices
#
# CONFIG_SND_AD1889 is not set
...
# CONFIG_SND_FM801 is not set
CONFIG_SND_HDA_INTEL=m
# CONFIG_SND_HDA_HWDEP is not set
CONFIG_SND_HDA_CODEC_REALTEK=y
# CONFIG_SND_HDA_CODEC_ANALOG is not set
# CONFIG_SND_HDA_CODEC_SIGMATEL is not set
# CONFIG_SND_HDA_CODEC_VIA is not set
CONFIG_SND_HDA_CODEC_ATIHDMI=y
# CONFIG_SND_HDA_CODEC_CONEXANT is not set
# CONFIG_SND_HDA_CODEC_CMEDIA is not set
# CONFIG_SND_HDA_CODEC_SI3054 is not set
CONFIG_SND_HDA_GENERIC=y
# CONFIG_SND_HDA_POWER_SAVE is not set
...
#
# Open Sound System
#
# CONFIG_SOUND_PRIME is not set
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
# CONFIG_HID_DEBUG is not set
# CONFIG_HIDRAW is not set