>> It just tried kernel 4.6-rc1 and the problem is present there as well. >> Is there a list of patches between stable kernel 4.5.7 and 4.6-rc1 >> somewhere? I can try to revert each of them one at a time if so. >> Unless someone has any better idea to narrow this down to the >> offending commit? > > There were a significant amount of changes between 4.5 and 4.6 > regarding HD-audio HDMI/DP due to DP-MST support and the movement of > chmap stuff into sound/hda. > > Both can be a culprit... > > For checking the former, could you try the following? > - Checkout 4.5.7 git branch > - merge (not cherry-pick) the commit 022f344b41a5 > % git merge 022f344b41a5 > > This will bring DP-MST changes on top of 4.5.7. > > Then build this and check whether it shows the problem. If yes, you > can easily bisect between 4.5.7 and here. If it doesn't show a > problem, the problem is in the rest changes in 4.6-rc1. Hi Takashi, I did: git clone https://github.com/torvalds/linux.git cd linux git checkout 022f344b41a5 After compiling, audio is working correctly with that commit: ~$ 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 4 - Front Center 1 - Front Right 3 - Rear Right 2 - Rear Left 5 - LFE Time per period = 8.526391 Do you happen to known which commit I can try next that *should* have the problem so I can git bisect from there? Thanks! > thanks, > > Takashi > >> >> Thanks >> Derek >> >> On Tue, Nov 14, 2017 at 7:22 AM, VDR User <user.vdr@xxxxxxxxx> wrote: >> > Ok so after compiling a bunch of older kernels, I found that the >> > problem started with 4.6.0. Kernel 4.5.7 worked fine. With 4.6.0 I >> > get: >> > >> > ~$ 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 >> > Time per period = 8.524856 >> > >> > >> > However, with 4.5.7 it was: >> > >> > ~$ 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 >> > 4 - Front Center >> > 1 - Front Right >> > 3 - Rear Right >> > 2 - Rear Left >> > 5 - LFE >> > Time per period = 8.524740 >> > >> > In both cases the audio announced the correct speaker position, but >> > the Front Center & LFE channels are labeled/reported incorrectly as >> > "Unknown" starting in 4.6.0. I looked at the 4.6 changelog audio >> > section (https://kernelnewbies.org/Linux_4.6#head-59f6bad0670ddd6511d239b83c36575b139798bf) >> > but didn't see anything Nvidia-specific, or anything that sounded like >> > it would cause this problem. Any ideas on the best way to proceed >> > finding the offending commit? >> > >> > Thanks! >> > Derek >> > >> > >> > On Mon, Nov 13, 2017 at 11:03 AM, Takashi Iwai <tiwai@xxxxxxx> wrote: >> >> On Mon, 13 Nov 2017 18:18:39 +0100, >> >> VDR User wrote: >> >>> >> >>> 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? >> >> >> >> Well, nothing I can think of for now, that's why I asked about testing >> >> the older kernel. I'd do a bisection, e.g. try stable kernels like >> >> 4.4.x or 4.9.x, depending on the "previously working" version you >> >> remember, then go to the middle between them if it hits the >> >> regression. >> >> >> >> >> >> Takashi >> >> >> >>> >> >>> -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
