I have an HP 14 Notebook PC with Intel® Core™ i3-4005U CPU @ 1.70GHz × 4 processor to which I recently installed Ubuntu 20.04.1 LTS. Issue I'm having is it suddenly stopped sending audio to an external TV when connecting it via HDMI. I do the usual Settings > Sound > Output Device > HDMI / DisplayPort - Built-in Audio, but when running any audio or even using the Test option, no audio comes out from it.
I have tried solutions proposed on No sound on HDMI Ubuntu 20.04 LTS with no luck.
Running
rm -r ~/.config/pulse/
reboot
OR
killall pulseaudio; rm -rf ~/.config/pulse/* ; rm -rf ~/.pulse*
I have tried several tested HDMI cables, ports on TV tested with a PS3 and they all work fine.
For the PC reinstalling Ubuntu from scratch again, and searching if the BIOS had any HDMI or audio config options, none which has helped me.
This is the output when running sudo lspci -v && lsmod | grep snd:
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b)
Subsystem: Hewlett-Packard Company Haswell-ULT DRAM Controller
Flags: bus master, fast devsel, latency 0
Capabilities: [e0] Vendor Specific Information: Len=0c <?>
Kernel driver in use: hsw_uncore
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b) (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Haswell-ULT Integrated Graphics Controller
Flags: bus master, fast devsel, latency 0, IRQ 49
Memory at b2000000 (64-bit, non-prefetchable) [size=4M]
Memory at a0000000 (64-bit, prefetchable) [size=256M]
I/O ports at 6000 [size=64]
Expansion ROM at 000c0000 [virtual] [disabled] [size=128K]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Capabilities: [a4] PCI Advanced Features
Kernel driver in use: i915
Kernel modules: i915
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b)
Subsystem: Hewlett-Packard Company Haswell-ULT HD Audio Controller
Flags: bus master, fast devsel, latency 0, IRQ 50
Memory at b2710000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04) (prog-if 30 [XHCI])
Subsystem: Hewlett-Packard Company 8 Series USB xHCI HC
Flags: bus master, medium devsel, latency 0, IRQ 44
Memory at b2700000 (64-bit, non-prefetchable) [size=64K]
Capabilities: [70] Power Management version 2
Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+
Kernel driver in use: xhci_hcd
00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
Subsystem: Hewlett-Packard Company 8 Series HECI
Flags: bus master, fast devsel, latency 0, IRQ 48
Memory at b2718000 (64-bit, non-prefetchable) [size=32]
Capabilities: [50] Power Management version 3
Capabilities: [8c] MSI: Enable+ Count=1/1 Maskable- 64bit+
Kernel driver in use: mei_me
Kernel modules: mei_me
00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
Subsystem: Hewlett-Packard Company 8 Series HD Audio Controller
Flags: bus master, fast devsel, latency 0, IRQ 51
Memory at b2714000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 3
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
Capabilities: [100] Virtual Channel
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 1 (rev e4) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 40
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 00002000-00002fff [size=4K]
Memory behind bridge: 9fb00000-9fcfffff [size=2M]
Prefetchable memory behind bridge: 000000009fd00000-000000009fefffff [size=2M]
Capabilities: [40] Express Root Port (Slot+), MSI 00
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [90] Subsystem: Hewlett-Packard Company 8 Series PCI Express Root Port 1
Capabilities: [a0] Power Management version 3
Kernel driver in use: pcieport
00:1c.1 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 2 (rev e4) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 41
Bus: primary=00, secondary=02, subordinate=07, sec-latency=0
I/O behind bridge: 00005000-00005fff [size=4K]
Memory behind bridge: b1000000-b1ffffff [size=16M]
Prefetchable memory behind bridge: 00000000b0000000-00000000b0ffffff [size=16M]
Capabilities: [40] Express Root Port (Slot+), MSI 00
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [90] Subsystem: Hewlett-Packard Company 8 Series PCI Express Root Port 2
Capabilities: [a0] Power Management version 3
Capabilities: [100] Null
Capabilities: [200] L1 PM Substates
Kernel driver in use: pcieport
00:1c.2 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 42
Bus: primary=00, secondary=08, subordinate=08, sec-latency=0
I/O behind bridge: 00004000-00004fff [size=4K]
Memory behind bridge: b2600000-b26fffff [size=1M]
Prefetchable memory behind bridge: 00000000b2400000-00000000b24fffff [size=1M]
Capabilities: [40] Express Root Port (Slot+), MSI 00
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [90] Subsystem: Hewlett-Packard Company 8 Series PCI Express Root Port 3
Capabilities: [a0] Power Management version 3
Capabilities: [100] Null
Capabilities: [200] L1 PM Substates
Kernel driver in use: pcieport
00:1c.5 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 6 (rev e4) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 43
Bus: primary=00, secondary=09, subordinate=09, sec-latency=0
I/O behind bridge: 00003000-00003fff [size=4K]
Memory behind bridge: b2500000-b25fffff [size=1M]
Prefetchable memory behind bridge: [disabled]
Capabilities: [40] Express Root Port (Slot+), MSI 00
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [90] Subsystem: Hewlett-Packard Company 8 Series PCI Express Root Port 6
Capabilities: [a0] Power Management version 3
Capabilities: [100] Null
Capabilities: [200] L1 PM Substates
Kernel driver in use: pcieport
00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04) (prog-if 20 [EHCI])
Subsystem: Hewlett-Packard Company 8 Series USB EHCI
Flags: bus master, medium devsel, latency 0, IRQ 23
Memory at b271c000 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 3
Capabilities: [58] Debug port: BAR=1 offset=00a0
Capabilities: [98] PCI Advanced Features
Kernel driver in use: ehci-pci
00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
Subsystem: Hewlett-Packard Company 8 Series LPC Controller
Flags: bus master, medium devsel, latency 0
Capabilities: [e0] Vendor Specific Information: Len=0c <?>
Kernel driver in use: lpc_ich
Kernel modules: lpc_ich
00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04) (prog-if 01 [AHCI 1.0])
Subsystem: Hewlett-Packard Company 8 Series SATA Controller 1 [AHCI mode]
Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 45
I/O ports at 6088 [size=8]
I/O ports at 6094 [size=4]
I/O ports at 6080 [size=8]
I/O ports at 6090 [size=4]
I/O ports at 6060 [size=32]
Memory at b271b000 (32-bit, non-prefetchable) [size=2K]
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [70] Power Management version 3
Capabilities: [a8] SATA HBA v1.0
Kernel driver in use: ahci
Kernel modules: ahci
00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
Subsystem: Hewlett-Packard Company 8 Series SMBus Controller
Flags: medium devsel, IRQ 18
Memory at b2719000 (64-bit, non-prefetchable) [size=256]
I/O ports at 6040 [size=32]
Kernel driver in use: i801_smbus
Kernel modules: i2c_i801
02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5229 PCI Express Card Reader (rev 01)
Subsystem: Hewlett-Packard Company RTS5229 PCI Express Card Reader
Flags: bus master, fast devsel, latency 0, IRQ 47
Memory at b1000000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Device Serial Number 00-00-00-01-00-4c-e0-00
Kernel driver in use: rtsx_pci
Kernel modules: rtsx_pci
08:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller (rev 07)
Subsystem: Hewlett-Packard Company RTL810xE PCI Express Fast Ethernet controller
Flags: bus master, fast devsel, latency 0, IRQ 18
I/O ports at 4000 [size=256]
Memory at b2600000 (64-bit, non-prefetchable) [size=4K]
Memory at b2400000 (64-bit, prefetchable) [size=16K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Endpoint, MSI 01
Capabilities: [b0] MSI-X: Enable+ Count=4 Masked-
Capabilities: [d0] Vital Product Data
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Virtual Channel
Capabilities: [160] Device Serial Number 01-00-00-00-36-4c-e0-00
Capabilities: [170] Latency Tolerance Reporting
Kernel driver in use: r8169
Kernel modules: r8169
09:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
DeviceName: Skyray
Subsystem: Hewlett-Packard Company RTL8723BE PCIe Wireless Network Adapter
Flags: bus master, fast devsel, latency 0, IRQ 16
I/O ports at 3000 [size=256]
Memory at b2500000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Device Serial Number 00-23-b7-fe-ff-4c-e0-00
Capabilities: [150] Latency Tolerance Reporting
Capabilities: [158] L1 PM Substates
Kernel driver in use: rtl8723be
Kernel modules: rtl8723be
snd_hda_codec_realtek 126976 1
snd_hda_codec_generic 81920 1 snd_hda_codec_realtek
ledtrig_audio 16384 2 snd_hda_codec_generic,snd_hda_codec_realtek
snd_hda_codec_hdmi 61440 1
snd_hda_intel 53248 8
snd_intel_dspcfg 24576 1 snd_hda_intel
snd_hda_codec 135168 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
snd_hda_core 90112 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
snd_hwdep 20480 1 snd_hda_codec
snd_pcm 106496 6 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core
snd_seq_midi 20480 0
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi 36864 1 snd_seq_midi
snd_seq 69632 2 snd_seq_midi,snd_seq_midi_event
snd_seq_device 16384 3 snd_seq,snd_seq_midi,snd_rawmidi
snd_timer 36864 2 snd_seq,snd_pcm
snd 90112 25 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_pcm,snd_rawmidi
soundcore 16384 1 snd
I'd really appreciate any help you could give me as I'm relatively new to this Ubuntu world and I am totally out of ideas!
