[Bug 1657994] Re: Regression: HDMI audio produces no sound (Skylake NUC)
** Changed in: linux Status: Unknown => Fix Released ** Changed in: linux Importance: Unknown => Critical -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1657994 Title: Regression: HDMI audio produces no sound (Skylake NUC) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1657994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1657994] Re: Regression: HDMI audio produces no sound (Skylake NUC)
The bug has been fixed with this commit upstream drm-tip repository (with cc to stable): https://cgit.freedesktop.org/drm-tip/commit/?id=d81fb7fd9436e81fda67e5bc8ed0713aa28d3db2 Note it also affects Zesty. ** Bug watch added: freedesktop.org Bugzilla #101583 https://bugs.freedesktop.org/show_bug.cgi?id=101583 ** Also affects: linux via https://bugs.freedesktop.org/show_bug.cgi?id=101583 Importance: Unknown Status: Unknown ** Changed in: linux (Ubuntu Yakkety) Status: Expired => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1657994 Title: Regression: HDMI audio produces no sound (Skylake NUC) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1657994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1657994] Re: Regression: HDMI audio produces no sound (Skylake NUC)
[Expired for linux (Ubuntu Yakkety) because there has been no activity for 60 days.] ** Changed in: linux (Ubuntu Yakkety) Status: Incomplete => Expired -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1657994 Title: Regression: HDMI audio produces no sound (Skylake NUC) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1657994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1657994] Re: Regression: HDMI audio produces no sound (Skylake NUC)
[Expired for linux (Ubuntu) because there has been no activity for 60 days.] ** Changed in: linux (Ubuntu) Status: Incomplete => Expired -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1657994 Title: Regression: HDMI audio produces no sound (Skylake NUC) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1657994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1657994] Re: Regression: HDMI audio produces no sound (Skylake NUC)
Do you have any alsa/pulseaudio config? This can be quickly verified by running "vanilla" Ubuntu. 16.04: http://cdimage.ubuntu.com/xenial/daily-live/current/ 17.04: http://cdimage.ubuntu.com/daily-live/current/ If both of them work, then it's probably related to your config setting. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1657994 Title: Regression: HDMI audio produces no sound (Skylake NUC) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1657994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1657994] Re: Regression: HDMI audio produces no sound (Skylake NUC)
I had been trying to cherry-pick patches from the working Xenial kernel to mainline, and got bogged down with build issues. Back to the bisection: This kernel ... http://kernel.ubuntu.com/~jsalisbury/lp1657994/linux-image-4.4.0-040400-generic_4.4.0-040400.201702021530_amd64.deb .. does not work. Failure mode like 4.4 mainline. I can also update that mainline kernels 4.10.3 and 4.11-rc2 both fail like other recent mainline kernels. To recap, we have only two working data points, both Xenial kernels (4.4+i915 backport). 4.4.0-59 4.4.0-21 All mainline 4.4 kernels do not even enumerate HDMI audio. All mainline kernels from 4.5-rc1 and later enumerate HDMI audio but produce no sound. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1657994 Title: Regression: HDMI audio produces no sound (Skylake NUC) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1657994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1657994] Re: Regression: HDMI audio produces no sound (Skylake NUC)
** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Changed in: linux (Ubuntu Yakkety) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1657994 Title: Regression: HDMI audio produces no sound (Skylake NUC) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1657994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1657994] Re: Regression: HDMI audio produces no sound (Skylake NUC)
I would like to add some information to this bug report, which may or may not be relevant. There seems to be a general problem with HDMI audio in recent kernel versions. I am using Debian kernel packages, on an AMD64 system with a Radeon R9-280 video card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Tahiti PRO [Radeon HD 7950/8950 OEM / R9 280] 01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Tahiti HDMI Audio [Radeon HD 7870 XT / 7950/7970] My experience has been as follows: Linux v4.6.4 -- HDMI audio works Linux v4.9.2 -- HDMI audio works Linux v4.9.6 -- HDMI audio does not work There were also problems with kernel versions 4.7 and 4.8. I had the impression that it was intermittent; sometimes when the audio did not work, a reboot or power cycle into the same kernel version would make it start working. It appears that with my hardware, Linux v4.6 was completely reliable; more recent versions are substantially less so, or even completely broken. (I'm not exactly sure whether v4.9.2 always worked, or only most of the time.) I hope this information is useful in locating the specific source of the problem. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1657994 Title: Regression: HDMI audio produces no sound (Skylake NUC) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1657994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1657994] Re: Regression: HDMI audio produces no sound (Skylake NUC)
We are bisecting between those two kernel versions to identify the commit that introduced this regression. Some of the test kernels I post will be bad and some will be good. At the end of the testing the bisect will point to one particular commit. I built the first test kernel, up to the following commit: aee3bfa3307cd0da2126bdc0ea359dabea5ee8f7 The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1657994 Can you test that kernel and report back if it has the bug or not? I will build the next test kernel based on your test results. Thanks in advance -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1657994 Title: Regression: HDMI audio produces no sound (Skylake NUC) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1657994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1657994] Re: Regression: HDMI audio produces no sound (Skylake NUC)
For this kernel, no audio. Failure mode is like 4.4 mainline. Just to understand: the strategy is to bisect between two mainline kernels with different failure modes (4.4 final and 4.5rc1), with the hope that between the two there will be a good kernel? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1657994 Title: Regression: HDMI audio produces no sound (Skylake NUC) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1657994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1657994] Re: Regression: HDMI audio produces no sound (Skylake NUC)
I started a kernel bisect between 4.4 final and v4.5-rc1. The kernel bisect will require testing of about 7-10 test kernels. I built the first test kernel, up to the following commit: 1289ace5b4f70f1e68ce785735b82c7e483de863 The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1657994 Can you test that kernel and report back if it has the bug or not? I will build the next test kernel based on your test results. Thanks in advance -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1657994 Title: Regression: HDMI audio produces no sound (Skylake NUC) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1657994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1657994] Re: Regression: HDMI audio produces no sound (Skylake NUC)
Yes, 4.4.0-21 is good, just like 4.4.0-59. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1657994 Title: Regression: HDMI audio produces no sound (Skylake NUC) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1657994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1657994] Re: Regression: HDMI audio produces no sound (Skylake NUC)
Can you test the 4.4.0-21 kernel next: https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/ppa/+build/9594168 If it is good, we can bisect between 4.4.0-21 and 4.6.0-10. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1657994 Title: Regression: HDMI audio produces no sound (Skylake NUC) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1657994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1657994] Re: Regression: HDMI audio produces no sound (Skylake NUC)
Both kernels behave like any of the kernels from 4.5: no sound on HDMI. Recapping: Ubuntu 4.4.0-59: HDMI audio works properly Mainline 4.4 (any): i915 drm driver does not seem to support Skylake, HDMI audio not enumerated All of the below kernels exhibit the same problem: HDMI produces no sound Mainline 4.5rc1 Mainline 4.5 final Mainline 4.6 final Ubuntu 4.6.0-10 Mainline 4.7 final Mainline 4.8 final Ubuntu 4.8.0-11 Ubuntu 4.8.0-34 Mainline 4.9 final Mainline 4.10rc5 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1657994 Title: Regression: HDMI audio produces no sound (Skylake NUC) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1657994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1657994] Re: Regression: HDMI audio produces no sound (Skylake NUC)
Can you test the following two early Yakkety kernels: 4.6.0-10: https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/bootstrap/+build/10600030 4.8.0-11: https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/unstable/+build/10923199 With these kernels, you need to install both the linux-image and linux- image-extra .deb packages. ** Also affects: linux (Ubuntu Yakkety) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Yakkety) Status: New => Confirmed ** Changed in: linux (Ubuntu Yakkety) Importance: Undecided => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1657994 Title: Regression: HDMI audio produces no sound (Skylake NUC) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1657994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1657994] Re: Regression: HDMI audio produces no sound (Skylake NUC)
Kernel behavior summary: Ubuntu 4.4.0-59: HDMI audio works properly Mainline 4.4 (any): i915 drm driver does not seem to support Skylake, HDMI audio not enumerated All of the below kernels exhibit the same problem: HDMI produces no sound Mainline 4.5rc1 Mainline 4.5 final Mainline 4.6 final Mainline 4.7 final Mainline 4.8 final Ubuntu 4.8.0-34 Mainline 4.9 final Mainline 4.10rc5 >From here, it's not clear to me how to bisect between the working kernel and any of the not-working kernels without breaking the back-ported i915 driver along the way. ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1657994 Title: Regression: HDMI audio produces no sound (Skylake NUC) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1657994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1657994] Re: Regression: HDMI audio produces no sound (Skylake NUC)
** Tags added: kernel-bug-exists-upstream -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1657994 Title: Regression: HDMI audio produces no sound (Skylake NUC) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1657994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1657994] Re: Regression: HDMI audio produces no sound (Skylake NUC)
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.10 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.10-rc5 ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Tags added: performing-bisect -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1657994 Title: Regression: HDMI audio produces no sound (Skylake NUC) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1657994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1657994] Re: Regression: HDMI audio produces no sound (Skylake NUC)
I'd like to perform a bisect to figure out what commit caused this regression. We need to identify the earliest kernel where the issue started happening as well as the latest kernel that did not have this issue. Can you test the following kernels and report back? We are looking for the first kernel version that exhibits this bug: 4.5 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.5-wily/ 4.6 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-yakkety/ 4.7 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7/ 4.8-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.8-rc1/ You don't have to test every kernel, just up until the kernel that first has this bug. Thanks in advance! ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1657994 Title: Regression: HDMI audio produces no sound (Skylake NUC) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1657994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs