no headphone sound after update 18.04.5 kernel 5.4.0-56-generic

[Danilo Martins]

After updating to ubuntu 18.04.5, kernel 5.4.0-56-generic, headphone sound doesn't work.
In settings > sounds, headphone-sof-hda-dsp shows up, but I can't get output sound.
The speakers works properly.

>>>> lspci -nnk

00:00.0 Host bridge [0600]: Intel Corporation 8th Gen Core Processor Host Bridge/DRAM Registers [8086:3ec4] (rev 07)
 Subsystem: Dell Device [1028:0949]
 Kernel driver in use: skl_uncore
00:01.0 PCI bridge [0604]: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) [8086:1901] (rev 07)
 Kernel driver in use: pcieport
00:02.0 VGA compatible controller [0300]: Intel Corporation Device [8086:3e9b]
 Subsystem: Dell Device [1028:0949]
 Kernel driver in use: i915
 Kernel modules: i915
00:04.0 Signal processing controller [1180]: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem [8086:1903] (rev 07)
 Subsystem: Dell Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem [1028:0949]
 Kernel driver in use: proc_thermal
 Kernel modules: processor_thermal_device
00:08.0 System peripheral [0880]: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th Gen Core Processor Gaussian Mixture Model [8086:1911]
 Subsystem: Dell Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th Gen Core Processor Gaussian Mixture Model [1028:0949]
00:12.0 Signal processing controller [1180]: Intel Corporation Cannon Lake PCH Thermal Controller [8086:a379] (rev 10)
 Subsystem: Dell Device [1028:0949]
 Kernel driver in use: intel_pch_thermal
 Kernel modules: intel_pch_thermal
00:13.0 Serial controller [0700]: Intel Corporation Device [8086:a37c] (rev 10)
 Subsystem: Dell Device [1028:0949]
 Kernel driver in use: intel_ish_ipc
 Kernel modules: intel_ish_ipc
00:14.0 USB controller [0c03]: Intel Corporation Cannon Lake PCH USB 3.1 xHCI Host Controller [8086:a36d] (rev 10)
 Subsystem: Dell Device [1028:0949]
 Kernel driver in use: xhci_hcd
00:14.2 RAM memory [0500]: Intel Corporation Cannon Lake PCH Shared SRAM [8086:a36f] (rev 10)
 Subsystem: Dell Device [1028:0949]
00:15.0 Serial bus controller [0c80]: Intel Corporation Device [8086:a368] (rev 10)
 Subsystem: Dell Device [1028:0949]
 Kernel driver in use: intel-lpss
 Kernel modules: intel_lpss_pci
00:15.1 Serial bus controller [0c80]: Intel Corporation Device [8086:a369] (rev 10)
 Subsystem: Dell Device [1028:0949]
 Kernel driver in use: intel-lpss
 Kernel modules: intel_lpss_pci
00:16.0 Communication controller [0780]: Intel Corporation Cannon Lake PCH HECI Controller [8086:a360] (rev 10)
 Subsystem: Dell Device [1028:0949]
 Kernel driver in use: mei_me
 Kernel modules: mei_me
00:17.0 SATA controller [0106]: Intel Corporation Device [8086:a353] (rev 10)
 Subsystem: Dell Device [1028:0949]
 Kernel driver in use: ahci
 Kernel modules: ahci
00:1d.0 PCI bridge [0604]: Intel Corporation Cannon Lake PCH PCI Express Root Port 9 [8086:a330] (rev f0)
 Kernel driver in use: pcieport
00:1d.5 PCI bridge [0604]: Intel Corporation Device [8086:a335] (rev f0)
 Kernel driver in use: pcieport
00:1d.6 PCI bridge [0604]: Intel Corporation Device [8086:a336] (rev f0)
 Kernel driver in use: pcieport
00:1f.0 ISA bridge [0601]: Intel Corporation Device [8086:a30d] (rev 10)
 Subsystem: Dell Device [1028:0949]
00:1f.3 Multimedia audio controller [0401]: Intel Corporation Cannon Lake PCH cAVS [8086:a348] (rev 10)
 Subsystem: Dell Device [1028:0949]
 Kernel driver in use: sof-audio-pci
 Kernel modules: snd_hda_intel, snd_sof_pci
00:1f.4 SMBus [0c05]: Intel Corporation Cannon Lake PCH SMBus Controller [8086:a323] (rev 10)
 Subsystem: Dell Device [1028:0949]
 Kernel modules: i2c_i801
00:1f.5 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH SPI Controller [8086:a324] (rev 10)
 Subsystem: Dell Device [1028:0949]
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation Device [10de:2191] (rev a1)
 Subsystem: Dell Device [1028:0949]
 Kernel driver in use: nvidia
 Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia
01:00.1 Audio device [0403]: NVIDIA Corporation Device [10de:1aeb] (rev a1)
 Subsystem: Dell Device [1028:0949]
 Kernel driver in use: snd_hda_intel
 Kernel modules: snd_hda_intel
01:00.2 USB controller [0c03]: NVIDIA Corporation Device [10de:1aec] (rev a1)
 Subsystem: Dell Device [1028:0949]
 Kernel driver in use: xhci_hcd
01:00.3 Serial bus controller [0c80]: NVIDIA Corporation Device [10de:1aed] (rev a1)
 Subsystem: Dell Device [1028:0949]
 Kernel driver in use: nvidia-gpu
 Kernel modules: i2c_nvidia_gpu
02:00.0 Non-Volatile memory controller [0108]: Device [1cc1:33f3] (rev 03)
 Subsystem: Device [1cc1:33f3]
 Kernel driver in use: nvme
 Kernel modules: nvme
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
 Subsystem: Dell RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1028:0949]
 Kernel driver in use: r8169
 Kernel modules: r8169
04:00.0 Network controller [0280]: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter [168c:0042] (rev 31)
 Subsystem: Dell QCA9377 802.11ac Wireless Network Adapter [1028:1810]
 Kernel driver in use: ath10k_pci
 Kernel modules: ath10k_pci

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1906998/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Danilo Martins (danilosm)]

Dell G3 3590

[Danilo Martins (danilosm)]

The headphone sound issue was temporarily resolved.

I launched pavucontrol > input devices > and in the "sof-hda-dsp Headphone Microphone + Headset Microphone" I selected "Headphone Microphone" in the "Port" field.
As default, the "Headset Microphone" is set.

I have no idea why this worked.

But every time I connect my headphone, I need to change the settings as mentioned above.

[Danilo Martins (danilosm)]

Follow the print from the screen running the pavucontrol