On Tue, 14 Nov 2017 23:21:13 +0100, VDR User wrote: > > 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. 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
