Hi Takashi, Thanks for your reply. I have no clue unfortunately as I just noticed it now. Is there a previous kernel you could recommend I try prior to any or big changes to how snd-hda-intel works? -Derek On Mon, Nov 13, 2017 at 8:40 AM, Takashi Iwai <tiwai@xxxxxxx> wrote: > On Sun, 12 Nov 2017 19:01:14 +0100, > VDR User wrote: >> >> Hi. I just noticed that I'm missing some surround channels and I think >> it may be a bug in the alsa drivers because my current setup used to >> work just fine. > > If it's a regression, which kernel did work and which started a > regression? This alone would be a good help for tracking down the > problem. > > > Takashi > >> I'm running Debian Testing, stable kernel 4.13.12, >> alsa-utils 1.1.3-1. My ~/.asoundrc is: >> >> ~$ cat .asoundrc >> pcm.!default "hdmi:NVidia,1" >> ~$ >> >> I am not setting anything on my kernel load line: >> >> echo 'Loading Linux 4.13.12-amd ...' >> linux /vmlinuz-4.13.12-amd >> root=UUID=6df5733d-b089-450c-9ec6-661dd013c7c0 ro >> echo 'Loading initial ramdisk ...' >> initrd /initrd.img-4.13.12-amd >> >> The driver being used is snd-hda-intel with an Nvidia GT520 video >> card. And lastly I do not have Pulse or a desktop environment. This is >> a minimal HTPC setup that runs only an xserver to provide video >> output, with audio/video being sent to my surround receiver via HDMI. >> >> The first thing I noticed was mpv-player was downmixing 5.1 to 3.1 and >> giving the following log message: >> >> [ao/alsa] trying to set ALSA channel map: FL FR FC LFE RL RR >> [ao/alsa] channel map reported by ALSA: FL FR FC LFE UNKNOWN UNKNOWN >> [ao/alsa] which we understand as: fl-fr-fc-lfe-na-na >> [ao/alsa] using the ALSA channel map. >> [ao/alsa] hw pausing supported: yes >> [ao/alsa] buffersize: 2720 samples >> [ao/alsa] period size: 160 samples >> [ao/alsa] device buffer: 2720 samples. >> [ao/alsa] using soft-buffer of 8820 samples. >> [cplayer] AO: [alsa] 44100Hz fl-fr-fc-lfe-na-na (3.1) 6ch s32 >> [cplayer] AO: Description: ALSA audio output >> [af] Adding filter lavrresample >> [lavrresample] Remix: 5.1 -> 3.1 >> [af] Audio filter chain: >> [af] [in] 44100Hz 5.1 6ch floatp >> [af] [lavrresample] 44100Hz fl-fr-fc-lfe-na-na (3.1) 6ch s32 [a] >> [af] [out] 44100Hz fl-fr-fc-lfe-na-na (3.1) 6ch s32 >> [af] [ao] 44100Hz fl-fr-fc-lfe-na-na (3.1) 6ch s32 >> >> That makes it look like Rear Left/Right channels are absent. I think >> ran speaker-test. 4 and 5 show as "Unknown" but correctly audibly >> announced as "front center" and "subwoofer" respectively: >> >> ~$ speaker-test -c 6 -t wav >> >> speaker-test 1.1.3 >> >> Playback device is default >> Stream parameters are 48000Hz, S16_LE, 6 channels >> WAV file(s) >> Rate set to 48000Hz (requested 48000Hz) >> Buffer size range from 64 to 5440 >> Period size range from 32 to 2720 >> Using max buffer size 5440 >> Periods = 4 >> was set period_size = 1088 >> was set buffer_size = 5440 >> 0 - Front Left >> 1 - Front Right >> 3 - Rear Right >> 2 - Rear Left >> 4 - Unknown >> 5 - Unknown >> >> Additional information that may be of use: >> >> ~$ aplay -l >> **** List of PLAYBACK Hardware Devices **** >> card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0] >> Subdevices: 1/1 >> Subdevice #0: subdevice #0 >> card 1: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1] >> Subdevices: 0/1 >> Subdevice #0: subdevice #0 >> >> ~$ cat /proc/asound/card1/eld#0.1 >> monitor_present 1 >> eld_valid 1 >> monitor_name SONY AVAMP >> >> connection_type HDMI >> eld_version [0x2] CEA-861D or below >> edid_version [0x3] CEA-861-B, C or D >> manufacture_id 0xd94d >> product_id 0xf02 >> port_id 0x200 >> support_hdcp 0 >> support_ai 0 >> audio_sync_delay 0 >> speakers [0x5f] FL/FR LFE FC RL/RR RC RLC/RRC >> sad_count 12 >> sad0_coding_type [0xc] MLP (Dolby TrueHD) >> sad0_channels 2 >> sad0_rates [0x1ec0] 44100 48000 88200 96000 176400 192000 >> sad1_coding_type [0xc] MLP (Dolby TrueHD) >> sad1_channels 6 >> sad1_rates [0x1ec0] 44100 48000 88200 96000 176400 192000 >> sad2_coding_type [0xc] MLP (Dolby TrueHD) >> sad2_channels 8 >> sad2_rates [0x6c0] 44100 48000 88200 96000 >> sad3_coding_type [0xb] DTS-HD >> sad3_channels 2 >> sad3_rates [0x1ec0] 44100 48000 88200 96000 176400 192000 >> sad4_coding_type [0xb] DTS-HD >> sad4_channels 6 >> sad4_rates [0x1ec0] 44100 48000 88200 96000 176400 192000 >> sad5_coding_type [0xb] DTS-HD >> sad5_channels 8 >> sad5_rates [0x6c0] 44100 48000 88200 96000 >> sad6_coding_type [0x1] LPCM >> sad6_channels 2 >> sad6_rates [0x1ee0] 32000 44100 48000 88200 96000 176400 192000 >> sad6_bits [0xe0000] 16 20 24 >> sad7_coding_type [0x1] LPCM >> sad7_channels 6 >> sad7_rates [0x1ee0] 32000 44100 48000 88200 96000 176400 192000 >> sad7_bits [0xe0000] 16 20 24 >> sad8_coding_type [0x1] LPCM >> sad8_channels 8 >> sad8_rates [0x1ee0] 32000 44100 48000 88200 96000 176400 192000 >> sad8_bits [0xe0000] 16 20 24 >> sad9_coding_type [0x2] AC-3 >> sad9_channels 6 >> sad9_rates [0xe0] 32000 44100 48000 >> sad9_max_bitrate 680000 >> sad10_coding_type [0x7] DTS >> sad10_channels 6 >> sad10_rates [0x6e0] 32000 44100 48000 88200 96000 >> sad10_max_bitrate 1536000 >> sad11_coding_type [0xa] E-AC-3/DD+ (Dolby Digital Plus) >> sad11_channels 8 >> sad11_rates [0xc0] 44100 48000 >> >> 02:00.0 VGA compatible controller: NVIDIA Corporation GF119 [GeForce >> GT 520] (rev a1) (prog-if 00 [VGA controller]) >> Subsystem: eVga.com. Corp. GF119 [GeForce GT 520] >> Flags: bus master, fast devsel, latency 0, IRQ 25 >> Memory at fd000000 (32-bit, non-prefetchable) [size=16M] >> Memory at f0000000 (64-bit, prefetchable) [size=128M] >> Memory at fa000000 (64-bit, prefetchable) [size=32M] >> I/O ports at ec00 [size=128] >> [virtual] Expansion ROM at 000c0000 [disabled] [size=128K] >> Capabilities: <access denied> >> Kernel driver in use: nvidia >> Kernel modules: nvidia >> >> 02:00.1 Audio device: NVIDIA Corporation GF119 HDMI Audio Controller (rev a1) >> Subsystem: eVga.com. Corp. GF119 HDMI Audio Controller >> Flags: bus master, fast devsel, latency 0, IRQ 17 >> Memory at fea7c000 (32-bit, non-prefetchable) [size=16K] >> Capabilities: <access denied> >> Kernel driver in use: snd_hda_intel >> Kernel modules: snd_hda_intel >> _______________________________________________ >> Alsa-devel mailing list >> Alsa-devel@xxxxxxxxxxxxxxxx >> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel >> _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
