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#1 2021-12-21 03:47:09

azurite27
Member
Registered: 2021-12-14
Posts: 5

No DP Audio Output on HD7850(Southern Islands) on DP output

I recently bought a graphics card,which is GCN1.x.(this is said to be r9 370 card.but the card information is quite close to hd7850)
So then I looked up in archwiki,enabled amdgpu support for SI,regenerated grub config and rebooted.
But then I found that no DP audio output when I was playing an audio file.
on hdmi it has audio out,but it doesn't work on DP.(it's working when on Win10 so I can confirm it's not a hardware issue)
Then I searched in the forum and found a thread describing a similar problem,but there's no later updates and that's nearly a year ago,so I opened this one.
Btw,I'm using kernel 5.15.10 at the time of writing.

And I found that when using dp out.The vlc audio playback pauses and continues repeatedly.

Link to that thread:
https://bbs.archlinux.org/viewtopic.php?id=258477

I also enabled si_support and cik_support in modprobe.d

options amdgpu si_support=1
options amdgpu cik_support=1
options radeon si_support=0
options radeon cik_support=0

lspci -k displays:

00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 05)
        Subsystem: ASUSTeK Computer Inc. Device 8576
        Kernel driver in use: snd_hda_intel
        Kernel modules: snd_hda_intel
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Pitcairn PRO [Radeon HD 7850 / R7 265 / R9 270 1024SP]
        Subsystem: Hightech Information System Ltd. Device 2015
        Kernel driver in use: amdgpu
        Kernel modules: radeon, amdgpu
01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Oland/Hainan/Cape Verde/Pitcairn HDMI Audio [Radeon HD 7000 Series]
        Subsystem: Hightech Information System Ltd. Device aab0
        Kernel driver in use: snd_hda_intel
        Kernel modules: snd_hda_intel

aplay -l output:

**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC887-VD Analog [ALC887-VD Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: ALC887-VD Digital [ALC887-VD Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: HDMI [HDA ATI HDMI], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: HDMI [HDA ATI HDMI], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: HDMI [HDA ATI HDMI], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: HDMI [HDA ATI HDMI], device 9: HDMI 3 [HDMI 3]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: HDMI [HDA ATI HDMI], device 10: HDMI 4 [HDMI 4]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: HDMI [HDA ATI HDMI], device 11: HDMI 5 [HDMI 5]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

when playing through dp:
pacmd list-cards:

2 card(s) available.
    index: 0
        name: <alsa_card.pci-0000_01_00.1>
        driver: <module-alsa-card.c>
        owner module: 6
        properties:
                alsa.card = "1"
                alsa.card_name = "HDA ATI HDMI"
                alsa.long_card_name = "HDA ATI HDMI at 0xf7e60000 irq 34"
                alsa.driver_name = "snd_hda_intel"
                device.bus_path = "pci-0000:01:00.1"
                sysfs.path = "/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1"
                device.bus = "pci"
                device.vendor.id = "1002"
                device.vendor.name = "Advanced Micro Devices, Inc. [AMD/ATI]"
                device.product.id = "aab0"
                device.product.name = "Oland/Hainan/Cape Verde/Pitcairn HDMI Audio [Radeon HD 7000 Series]"
                device.string = "1"
                device.description = "Oland/Hainan/Cape Verde/Pitcairn HDMI Audio [Radeon HD 7000 Series]"
                module-udev-detect.discovered = "1"
                device.icon_name = "audio-card-pci"
        profiles:
                output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5900, available: no)
                output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (priority 800, available: no)
                output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (priority 800, available: no)
                output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (priority 5700, available: no)
                output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (priority 600, available: no)
                output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (priority 600, available: no)
                output:hdmi-stereo-extra2: Digital Stereo (HDMI 3) Output (priority 5700, available: no)
                output:hdmi-surround-extra2: Digital Surround 5.1 (HDMI 3) Output (priority 600, available: no)
                output:hdmi-surround71-extra2: Digital Surround 7.1 (HDMI 3) Output (priority 600, available: no)
                output:hdmi-stereo-extra3: Digital Stereo (HDMI 4) Output (priority 5700, available: no)
                output:hdmi-surround-extra3: Digital Surround 5.1 (HDMI 4) Output (priority 600, available: no)
                output:hdmi-surround71-extra3: Digital Surround 7.1 (HDMI 4) Output (priority 600, available: no)
                output:hdmi-stereo-extra4: Digital Stereo (HDMI 5) Output (priority 38468, available: unknown)
                output:hdmi-stereo-extra5: Digital Stereo (HDMI 6) Output (priority 5700, available: no)
                output:hdmi-surround-extra5: Digital Surround 5.1 (HDMI 6) Output (priority 600, available: no)
                output:hdmi-surround71-extra5: Digital Surround 7.1 (HDMI 6) Output (priority 600, available: no)
                off: Off (priority 0, available: unknown)
        active profile: <output:hdmi-stereo-extra4>
        sinks:
                alsa_output.pci-0000_01_00.1.hdmi-stereo-extra4/#0: Oland/Hainan/Cape Verde/Pitcairn HDMI Audio [Radeon HD 7000 Series] Digital Stereo (HDMI 5)
        sources:
                alsa_output.pci-0000_01_00.1.hdmi-stereo-extra4.monitor/#0: Monitor of Oland/Hainan/Cape Verde/Pitcairn HDMI Audio [Radeon HD 7000 Series] Digital Stereo (HDMI 5)
        ports:
                hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "video-display"
                hdmi-output-1: HDMI / DisplayPort 2 (priority 5800, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "video-display"
                hdmi-output-2: HDMI / DisplayPort 3 (priority 5700, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "video-display"
                hdmi-output-3: HDMI / DisplayPort 4 (priority 5600, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "video-display"
                hdmi-output-4: HDMI / DisplayPort 5 (priority 5500, latency offset 0 usec, available: yes)
                        properties:
                                device.icon_name = "video-display"
                                device.product.name = "MSI PAG272QR"
                hdmi-output-5: HDMI / DisplayPort 6 (priority 5400, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "video-display"
    index: 1
        name: <alsa_card.pci-0000_00_1b.0>
        driver: <module-alsa-card.c>
        owner module: 7
        properties:
                alsa.card = "0"
                alsa.card_name = "HDA Intel PCH"
                alsa.long_card_name = "HDA Intel PCH at 0xf7f10000 irq 33"
                alsa.driver_name = "snd_hda_intel"
                device.bus_path = "pci-0000:00:1b.0"
                sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
                device.bus = "pci"
                device.vendor.id = "8086"
                device.vendor.name = "Intel Corporation"
                device.product.id = "8c20"
                device.product.name = "8 Series/C220 Series Chipset High Definition Audio Controller"
                device.form_factor = "internal"
                device.string = "0"
                device.description = "Built-in Audio"
                module-udev-detect.discovered = "1"
                device.icon_name = "audio-card-pci"
        profiles:
                input:analog-stereo: Analog Stereo Input (priority 65, available: no)
                output:analog-stereo: Analog Stereo Output (priority 39268, available: unknown)
                output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (priority 6565, available: unknown)
                output:iec958-stereo: Digital Stereo (IEC958) Output (priority 38268, available: unknown)
                output:iec958-stereo+input:analog-stereo: Digital Stereo (IEC958) Output + Analog Stereo Input (priority 5565, available: unknown)
                off: Off (priority 0, available: unknown)
        active profile: <output:analog-stereo>
        sinks:
                alsa_output.pci-0000_00_1b.0.analog-stereo/#2: Built-in Audio Analog Stereo
        sources:
                alsa_output.pci-0000_00_1b.0.analog-stereo.monitor/#2: Monitor of Built-in Audio Analog Stereo
        ports:
                analog-input-front-mic: Front Microphone (priority 8500, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "audio-input-microphone"
                analog-input-rear-mic: Rear Microphone (priority 8200, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "audio-input-microphone"
                analog-input-linein: Line In (priority 8100, latency offset 0 usec, available: no)
                        properties:

                analog-output-lineout: Line Out (priority 9000, latency offset 0 usec, available: no)
                        properties:

                analog-output-headphones: Headphones (priority 9900, latency offset 0 usec, available: yes)
                        properties:
                                device.icon_name = "audio-headphones"
                iec958-stereo-output: Digital Output (S/PDIF) (priority 0, latency offset 0 usec, available: unknown)
                        properties:

pacmd list-sinks:

2 sink(s) available.
  * index: 0
        name: <alsa_output.pci-0000_01_00.1.hdmi-stereo-extra4>
        driver: <module-alsa-card.c>
        flags: HARDWARE DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
        state: IDLE
        suspend cause: (none)
        priority: 9030
        volume: front-left: 33423 /  51% / -17.55 dB,   front-right: 33423 /  51% / -17.55 dB
                balance 0.00
        base volume: 65536 / 100% / 0.00 dB
        volume steps: 65537
        muted: no
        current latency: 37.28 ms
        max request: 6 KiB
        max rewind: 6 KiB
        monitor source: 0
        sample spec: s16le 2ch 44100Hz
        channel map: front-left,front-right
                     Stereo
        used by: 0
        linked by: 1
        configured latency: 40.00 ms; range is 0.50 .. 1999.82 ms
        card: 0 <alsa_card.pci-0000_01_00.1>
        module: 6
        properties:
                alsa.resolution_bits = "16"
                device.api = "alsa"
                device.class = "sound"
                alsa.class = "generic"
                alsa.subclass = "generic-mix"
                alsa.name = "HDMI 4"
                alsa.id = "HDMI 4"
                alsa.subdevice = "0"
                alsa.subdevice_name = "subdevice #0"
                alsa.device = "10"
                alsa.card = "1"
                alsa.card_name = "HDA ATI HDMI"
                alsa.long_card_name = "HDA ATI HDMI at 0xf7e60000 irq 34"
                alsa.driver_name = "snd_hda_intel"
                device.bus_path = "pci-0000:01:00.1"
                sysfs.path = "/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1"
                device.bus = "pci"
                device.vendor.id = "1002"
                device.vendor.name = "Advanced Micro Devices, Inc. [AMD/ATI]"
                device.product.id = "aab0"
                device.product.name = "Oland/Hainan/Cape Verde/Pitcairn HDMI Audio [Radeon HD 7000 Series]"
                device.string = "hdmi:1,4"
                device.buffering.buffer_size = "352768"
                device.buffering.fragment_size = "176384"
                device.access_mode = "mmap+timer"
                device.profile.name = "hdmi-stereo-extra4"
                device.profile.description = "Digital Stereo (HDMI 5)"
                device.description = "Oland/Hainan/Cape Verde/Pitcairn HDMI Audio [Radeon HD 7000 Series] Digital Stereo (HDMI 5)"
                module-udev-detect.discovered = "1"
                device.icon_name = "audio-card-pci"
        ports:
                hdmi-output-4: HDMI / DisplayPort 5 (priority 5500, latency offset 0 usec, available: yes)
                        properties:
                                device.icon_name = "video-display"
                                device.product.name = "MSI PAG272QR"
        active port: <hdmi-output-4>
    index: 2
        name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
        driver: <module-alsa-card.c>
        flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
        state: SUSPENDED
        suspend cause: IDLE
        priority: 9039
        volume: front-left: 15073 /  23% / -38.30 dB,   front-right: 15073 /  23% / -38.30 dB
                balance 0.00
        base volume: 65536 / 100% / 0.00 dB
        volume steps: 65537
        muted: no
        current latency: 0.00 ms
        max request: 0 KiB
        max rewind: 0 KiB
        monitor source: 2
        sample spec: s16le 2ch 44100Hz
        channel map: front-left,front-right
                     Stereo
        used by: 0
        linked by: 0
        configured latency: 0.00 ms; range is 0.50 .. 2000.00 ms
        card: 1 <alsa_card.pci-0000_00_1b.0>
        module: 7
        properties:
                alsa.resolution_bits = "16"
                device.api = "alsa"
                device.class = "sound"
                alsa.class = "generic"
                alsa.subclass = "generic-mix"
                alsa.name = "ALC887-VD Analog"
                alsa.id = "ALC887-VD Analog"
                alsa.subdevice = "0"
                alsa.subdevice_name = "subdevice #0"
                alsa.device = "0"
                alsa.card = "0"
                alsa.card_name = "HDA Intel PCH"
                alsa.long_card_name = "HDA Intel PCH at 0xf7f10000 irq 33"
                alsa.driver_name = "snd_hda_intel"
                device.bus_path = "pci-0000:00:1b.0"
                sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
                device.bus = "pci"
                device.vendor.id = "8086"
                device.vendor.name = "Intel Corporation"
                device.product.id = "8c20"
                device.product.name = "8 Series/C220 Series Chipset High Definition Audio Controller"
                device.form_factor = "internal"
                device.string = "front:0"
                device.buffering.buffer_size = "352800"
                device.buffering.fragment_size = "176400"
                device.access_mode = "mmap+timer"
                device.profile.name = "analog-stereo"
                device.profile.description = "Analog Stereo"
                device.description = "Built-in Audio Analog Stereo"
                module-udev-detect.discovered = "1"
                device.icon_name = "audio-card-pci"
        ports:
                analog-output-lineout: Line Out (priority 9000, latency offset 0 usec, available: no)
                        properties:

                analog-output-headphones: Headphones (priority 9900, latency offset 0 usec, available: yes)
                        properties:
                                device.icon_name = "audio-headphones"
        active port: <analog-output-headphones>

pacmd list-sink-inputs:

1 sink input(s) available.
    index: 2
        driver: <protocol-native.c>
        flags: START_CORKED FIX_RATE 
        state: CORKED
        sink: 0 <alsa_output.pci-0000_01_00.1.hdmi-stereo-extra4>
        volume: front-left: 48497 /  74% / -7.85 dB,   front-right: 48497 /  74% / -7.85 dB
                balance 0.00
        muted: no
        current latency: 307.21 ms
        requested latency: 40.00 ms
        sample spec: float32le 2ch 44100Hz
        channel map: front-left,front-right
                     Stereo
        resample method: copy
        module: 9
        client: 6 <VLC media player (LibVLC 3.0.16)>
        properties:
                media.role = "video"
                media.name = "audio stream"
                application.name = "VLC media player (LibVLC 3.0.16)"
                native-protocol.peer = "UNIX socket client"
                native-protocol.version = "35"
                application.id = "org.VideoLAN.VLC"
                application.version = "3.0.16"
                application.icon_name = "vlc"
                application.language = "en_US.UTF-8"
                application.process.id = "1276"
                application.process.user = "leo"
                application.process.host = "CapooDesktop"
                application.process.binary = "vlc"
                window.x11.display = ":0"
                application.process.machine_id = "3c1fb46cc5bb45e8931a7f111910bea3"
                application.process.session_id = "2"
                module-stream-restore.id = "sink-input-by-media-role:video"

Any help would be apprecited smile

Last edited by azurite27 (2021-12-21 05:09:16)

AMD Ryzen R5 5600, RX-6600XT, KDE User

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#2 2021-12-21 08:22:57

seth
Member
Registered: 2012-09-03
Posts: 60,968

Re: No DP Audio Output on HD7850(Southern Islands) on DP output

Do HDMI and DP run the same mode (xrandr -q)?
The output seems to support 2560 x 1440 @ 165Hz - does audio work if you limit it to 60Hz?

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#3 2021-12-21 08:46:40

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 23,944

Re: No DP Audio Output on HD7850(Southern Islands) on DP output

There are still a lot of issues around this, see e.g. https://gitlab.freedesktop.org/drm/amd/-/issues/1536 or https://gitlab.freedesktop.org/drm/amd/-/issues/1007

Maybe test the suggestion from the first link and check whether you can reproduce on the LTS kernel.

Edit: Ah yeah, non 60Hz outputs can often be problematic as well.

Last edited by V1del (2021-12-21 08:48:00)

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#4 2021-12-21 11:20:50

beta2
Member
Registered: 2018-09-25
Posts: 3

Re: No DP Audio Output on HD7850(Southern Islands) on DP output

In my setup with integrated graphics (Ryzen 5700G), similar situation, using mainline kernel (5.16.0-rc6-1-mainline) : no output on either DP or HDMI.  Using standard kernel (from the linux package), there IS output on HDMI but not on DP.  Using ASUS x570 TUF motherboard. 

Even more annoying, the DP monitor speaker emits occasional popping / crackling sounds (sporadically 1-2 times very few minutes, sounds like electrostatic discharge).

This issue doesn't happen in windows 11, so it's not a hardware issue.

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#5 2021-12-21 11:39:13

azurite27
Member
Registered: 2021-12-14
Posts: 5

Re: No DP Audio Output on HD7850(Southern Islands) on DP output

seth wrote:

Do HDMI and DP run the same mode (xrandr -q)?
The output seems to support 2560 x 1440 @ 165Hz - does audio work if you limit it to 60Hz?

On HDMI,I use 2560 x 1440 @ 60Hz,on Display Port I use 2560 x 1440 @ 144Hz.
But even if I changed to 2560 x 1440 @ 60Hz when using Display Port out,the audio still didn't come out,and vlc playback still pauses and continues repeatedly.
xrandr -q output for DP out when using 2560 x 1440 @60Hz:

Screen 0: minimum 320 x 200, current 2560 x 1440, maximum 16384 x 16384
DP-1 connected primary 2560x1440+0+0 (normal left inverted right x axis y axis) 597mm x 336mm
   2560x1440    165.00 +  59.95*+ 144.00   119.99
   3840x2160     60.00    50.00    59.94    30.00    29.97  
   3200x1800     59.94  
   2048x1536     85.00    75.00    60.00  
   1920x1440     85.00    75.00    60.00  
   1856x1392     75.00    60.01  
   1792x1344     75.00    60.01  
   2048x1152     59.99    59.98    59.90    59.91  
   1920x1200    165.00    59.88    59.95  
   1920x1080    144.01    60.01   120.00   119.88    59.97    59.96    60.00    60.00    50.00    59.94    59.93    30.00    29.97  
   1600x1200    165.00    85.00    75.00    70.00    65.00    60.00  
   1280x1440     60.00  
   1680x1050     59.95    59.88  
   1400x1050     74.76    59.98  
   1600x900      59.99    59.94    59.95    60.00    59.82  
   1280x1024     85.02    75.02    60.02  
   1440x900      59.89  
   1400x900      59.96    59.88  
   1280x960      85.00    60.00  
   1440x810      60.00    59.97  
   1368x768      59.88    59.85  
   1280x800     165.00    59.99    59.97    59.81    59.91  
   1152x864      75.00  
   1280x720      60.00    59.99    59.86    60.00    50.00    59.94    59.74  
   1024x768      85.00    75.05    60.04    85.00    75.03    70.07    60.00  
   1024x768i     86.96  
   960x720       85.00    75.00    60.00  
   928x696       75.00    60.05  
   896x672       75.05    60.01  
   1024x576      59.95    59.96    59.90    59.82  
   960x600       59.93    60.00  
   832x624       74.55  
   960x540       59.96    59.99    59.63    59.82  
   800x600       85.00    75.00    70.00    65.00    60.00    85.14    72.19    75.00    60.32    56.25  
   840x525       60.01    59.88  
   864x486       59.92    59.57  
   720x576       50.00  
   700x525       74.76    59.98  
   800x450       59.95    59.82  
   720x480       60.00    59.94  
   640x512       85.02    75.02    60.02  
   700x450       59.96    59.88  
   640x480       85.09    60.00    85.01    75.00    72.81    75.00    66.67    60.00    59.94  
   720x405       59.51    58.99  
   720x400       85.04    70.08  
   684x384       59.88    59.85  
   640x400       59.88    59.98    85.08  
   576x432       75.00  
   640x360       59.86    59.83    59.84    59.32  
   640x350       85.08  
   512x384       85.00    75.03    70.07    60.00  
   512x384i      87.06  
   512x288       60.00    59.92  
   416x312       74.66  
   480x270       59.63    59.82  
   400x300       85.27    72.19    75.12    60.32    56.34  
   432x243       59.92    59.57  
   320x240       85.18    72.81    75.00    60.05  
   360x202       59.51    59.13  
   360x200       85.04  
   320x200       85.27  
   320x180       59.84    59.32  
   320x175       85.27  
HDMI-1 disconnected (normal left inverted right x axis y axis)
DVI-D-1 disconnected (normal left inverted right x axis y axis)
DVI-D-2 disconnected (normal left inverted right x axis y axis)

AMD Ryzen R5 5600, RX-6600XT, KDE User

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#6 2021-12-21 11:45:33

azurite27
Member
Registered: 2021-12-14
Posts: 5

Re: No DP Audio Output on HD7850(Southern Islands) on DP output

V1del wrote:

There are still a lot of issues around this, see e.g. https://gitlab.freedesktop.org/drm/amd/-/issues/1536 or https://gitlab.freedesktop.org/drm/amd/-/issues/1007

Maybe test the suggestion from the first link and check whether you can reproduce on the LTS kernel.

Edit: Ah yeah, non 60Hz outputs can often be problematic as well.

It seems that audio still didn't come out when on LTS kernel.(5.10.87-1-lts at the time of writing)
And also tried to change to 2560 x 1440 @ 60Hz when on DisplayPort.Still didn't work.
By the way,the HDMI/Display Port audio output is displayed as an audio device after clicking sound icon in KDE.(both on 5.10.87-lts and 5.15.10 at the time of writing),but no audio comes out.
Thanks smile

AMD Ryzen R5 5600, RX-6600XT, KDE User

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