HDMI audio playback noise observed on AMD Polaris 10/11 GPU

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/1577288/+editstatus and add the package name in the text box next to the word Package.

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updated with package name with "linux-image-4.4.0-21-generic" used in Ubuntu 16.04

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1577288

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

changed the status to 'Confirmed'

I built a Xenial test kernel with a pick of commit 8eb22214b. The test kernel can be downloaded from:

http://kernel.ubuntu.com/~jsalisbury/lp1577288/

Can you test this kernel and see if it resolves this bug?

With your packages provided in above link, there is not HDMI audio endpoint. So, couldn't verify the issue.

The test kernel in comment #5 was the stock Xenial kernel with a cherry pick of the commit requested. That may indicate the commit introduces a new bug. Are there any error messages in the logs with this test kernel?

Ok, with stock kernel, support(graphics,display) for Polaris GPU is not present. This support will be in kernel 4.7. That is the reason for no audio endpoint. Please pick the audio commit.

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-xenial' to 'verification-done-xenial'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

Since , this test kernel doesn't have AMD GPU components for Polaris 10/11 built-in (please refer https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1577288/comments/8), I cannot test the fix.

But, I suggest to include the fix in the release.

This bug was fixed in the package linux - 4.4.0-23.41

---------------
linux (4.4.0-23.41) xenial; urgency=low

  [ Kamal Mostafa ]

  * Release Tracking Bug
    - LP: #1582431

  * zfs: disable module checks for zfs when cross-compiling (LP: #1581127)
    - [Packaging] disable zfs module checks when cross-compiling

  * Xenial update to v4.4.10 stable release (LP: #1580754)
    - Revert "UBUNTU: SAUCE: (no-up) ACPICA: Dispatcher: Update thread ID for
      recursive method calls"
    - Revert "UBUNTU: SAUCE: nbd: ratelimit error msgs after socket close"
    - Revert: "powerpc/tm: Check for already reclaimed tasks"
    - RDMA/iw_cxgb4: Fix bar2 virt addr calculation for T4 chips
    - ipvs: handle ip_vs_fill_iph_skb_off failure
    - ipvs: correct initial offset of Call-ID header search in SIP persistence
      engine
    - ipvs: drop first packet to redirect conntrack
    - mfd: intel-lpss: Remove clock tree on error path
    - nbd: ratelimit error msgs after socket close
    - ata: ahci_xgene: dereferencing uninitialized pointer in probe
    - mwifiex: fix corner case association failure
    - CNS3xxx: Fix PCI cns3xxx_write_config()
    - clk-divider: make sure read-only dividers do not write to their register
    - soc: rockchip: power-domain: fix err handle while probing
    - clk: rockchip: free memory in error cases when registering clock branches
    - clk: meson: Fix meson_clk_register_clks() signature type mismatch
    - clk: qcom: msm8960: fix ce3_core clk enable register
    - clk: versatile: sp810: support reentrance
    - clk: qcom: msm8960: Fix ce3_src register offset
    - lpfc: fix misleading indentation
    - ath9k: ar5008_hw_cmn_spur_mitigate: add missing mask_m & mask_p
      initialisation
    - mac80211: fix statistics leak if dev_alloc_name() fails
    - tracing: Don't display trigger file for events that can't be enabled
    - MD: make bio mergeable
    - Minimal fix-up of bad hashing behavior of hash_64()
    - mm, cma: prevent nr_isolated_* counters from going negative
    - mm/zswap: provide unique zpool name
    - ARM: EXYNOS: Properly skip unitialized parent clock in power domain on
    - ARM: SoCFPGA: Fix secondary CPU startup in thumb2 kernel
    - xen: Fix page <-> pfn conversion on 32 bit systems
    - xen/balloon: Fix crash when ballooning on x86 32 bit PAE
    - xen/evtchn: fix ring resize when binding new events
    - HID: wacom: Add support for DTK-1651
    - HID: Fix boot delay for Creative SB Omni Surround 5.1 with quirk
    - Input: zforce_ts - fix dual touch recognition
    - proc: prevent accessing /proc/<PID>/environ until it's ready
    - mm: update min_free_kbytes from khugepaged after core initialization
    - batman-adv: fix DAT candidate selection (must use vid)
    - batman-adv: Check skb size before using encapsulated ETH+VLAN header
    - batman-adv: Fix broadcast/ogm queue limit on a removed interface
    - batman-adv: Reduce refcnt of removed router when updating route
    - writeback: Fix performance regression in wb_over_bg_thresh()
    - MAINTAINERS: Remove asterisk from EFI directory names
    - x86/tsc: Read all ratio bits from MSR_PLATFORM_INFO
    - ARM: cpuidle: Pass on arm_cpuidle_s...

This bug was fixed in the package linux - 4.4.0-24.43

---------------
linux (4.4.0-24.43) xenial; urgency=low

  [ Kamal Mostafa ]

  * CVE-2016-1583 (LP: #1588871)
    - ecryptfs: fix handling of directory opening
    - SAUCE: proc: prevent stacking filesystems on top
    - SAUCE: ecryptfs: forbid opening files without mmap handler
    - SAUCE: sched: panic on corrupted stack end

  * arm64: statically link rtc-efi (LP: #1583738)
    - [Config] Link rtc-efi statically on arm64

 -- Kamal Mostafa <email address hidden> Fri, 03 Jun 2016 10:02:16 -0700