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Description of problem: Sound was working on my machine until kernel 4.7.9. Then I update to 4.8.4 and I have no sound any more, the movies play without sound, no sound in mp3, no sound online. I update to 4.8.7 and the problem still persist, there is no improvement. Version-Release number of selected component (if applicable): Kernel 4.8.7 x86_64 How reproducible: Update to kernel 4.8.7 Steps to Reproduce: 1. Update to kernel 4.8.7 2. Play movie on vlc/mplayer 3. Enter youtube, play something Actual results: No sound in movie/audio files Youtube freeze, no sound/playback at all Expected results: Sound in vlc/mplayer Youtube playback with sound Additional info: System specs: AMD Athlon X2 4400+ (skt 939), AMD Radeon 3450 (AGP), Creative X-FI
The issue persisted in 4.8.8 too.. The problem seems to be caused by the Creative X-FI sound card. If I enable onboard sound card there is no issue in hearing sound and watching youtube. I attached as URL the output of alsa-info script.
Wait a minute. My sound was working through 4.8.6 (running it now), and it broke on 4.8.7 too. And I don't have a Creative X-FI sound card. I use the motherboard's build-in sound. # lspci | grep -i audio 00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 04) 01:00.1 Audio device: NVIDIA Corporation GK104 HDMI Audio Controller (rev a1) Something is definitely wrong with 4.8.7. My only question is if it is a separate bug.
Could it be this? From 4.8.7 changelog. commit 54186c7dd2eca004e1bd08cc0fe42c6f4a3fc892 Author: Ard Biesheuvel <ard.biesheuvel> Date: Mon Oct 17 17:23:59 2016 +0100 ALSA: hda - allow 40 bit DMA mask for NVidia devices commit 3ab7511eafdd5c4f40d2832f09554478dfbea170 upstream. Commit 49d9e77e72cf ("ALSA: hda - Fix system panic when DMA > 40 bits for Nvidia audio controllers") simply disabled any DMA exceeding 32 bits for NVidia devices, even though they are capable of performing DMA up to 40 bits. On some architectures (such as arm64), system memory is not guaranteed to be 32-bit addressable by PCI devices, and so this change prevents NVidia devices from working on platforms such as AMD Seattle. Since the original commit already mentioned that up to 40 bits of DMA is supported, and given that the code has been updated in the meantime to support a 40 bit DMA mask on other devices, revert commit 49d9e77e72cf and explicitly set the DMA mask to 40 bits for NVidia devices. Fixes: 49d9e77e72cf ('ALSA: hda - Fix system panic when DMA > 40 bits...') Signed-off-by: Ard Biesheuvel <ard.biesheuvel> Signed-off-by: Takashi Iwai <tiwai> Signed-off-by: Greg Kroah-Hartman <gregkh>
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There are a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 24 kernel bugs. Fedora 25 has now been rebased to 4.10.9-100.fc24. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 26, and are still experiencing this issue, please change the version to Fedora 26. If you experience different issues, please open a new bug report for those.
*********** MASS BUG UPDATE ************** This bug is being closed with INSUFFICIENT_DATA as there has not been a response in 2 weeks. If you are still experiencing this issue, please reopen and attach the relevant data from the latest kernel you are running and any data that might have been requested previously.