Check your system log, seem kernel oops - [26825.955291] WARNING: CPU: 0 PID: 16771 at /build/linux-_Kv5oI/linux-4.2.0/fs/block_dev.c:57 __blkdev_put+0xbd/0x280() [26825.955293] Modules linked in: nls_iso8859_1 uas usb_storage binfmt_misc ax88179_178a usbnet uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common snd_hda_codec_via snd_hda_codec_hdmi snd_hda_codec_generic snd_usb_audio snd_hda_intel snd_hda_codec videodev joydev media snd_usbmidi_lib snd_hda_core snd_hwdep snd_pcm input_leds snd_seq_midi snd_seq_midi_event kvm_amd snd_rawmidi kvm nvidia(POE) edac_core snd_seq snd_seq_device snd_timer edac_mce_amd snd drm serio_raw k10temp asus_atk0110 soundcore 8250_fintek shpchp i2c_piix4 wmi mac_hid parport_pc ppdev lp parport autofs4 hid_generic usbhid hid pata_acpi psmouse pata_atiixp ahci r8169 libahci mii [26825.955347] CPU: 0 PID: 16771 Comm: pool Tainted: P OE 4.2.0-34-lowlatency #39-Ubuntu
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1562208 Title: OpenAL Software Silent/Freezes Status in openal-soft package in Ubuntu: New Status in pulseaudio package in Ubuntu: Incomplete Bug description: Following an update I made this week to the system, I have attempted to play a number of games, including "X Rebirth" from gog.com, "Minecraft," downloaded from Mojang. In those games making use of the OpenAL library, no sound is coming through PulseAudio; there is a stream listed in Pulse, but there is no sound, and the meter does not indicate that PulseAudio is even receiving any audio. I am also noticing the problem in Blender, but in this case, the issue seems to cause the VSE to stick to the frame it's at when set to "A/V Sync" To make matters worse, once the stream shows in "pavucontrol," the program won't end. If the audio is integral to the software, such as the case of Blender, the software itself will freeze when I attempt to close it; I will have to kill the program to make it shut down completely. Other programs that use a sound server with OpenAL seem to close, but the stream is still showing in pavucontrol, and the process is still shown as running in "ps x". Killing the frozen app makes it go away; and so far, the normal kill command will work; there's no need to "-9" it. Even openal-info freezes, after displaying the following: ----------------------- Available playback devices: CM106 Like Sound Device Analog Stereo Available capture devices: M-Audio Fast Track MKII Analog Stereo Monitor of CM106 Like Sound Device Analog Stereo Default playback device: CM106 Like Sound Device Analog Stereo Default capture device: CM106 Like Sound Device Analog Stereo ALC version: 1.1 ** Info for device "CM106 Like Sound Device Analog Stereo" ** ALC version: 1.1 ALC extensions: ALC_ENUMERATE_ALL_EXT, ALC_ENUMERATION_EXT, ALC_EXT_CAPTURE, ALC_EXT_DEDICATED, ALC_EXT_disconnect, ALC_EXT_EFX, ALC_EXT_thread_local_context, ALC_SOFTX_device_clock, ALC_SOFTX_HRTF, ALC_SOFT_loopback, ALC_SOFTX_midi_interface, ALC_SOFT_pause_device OpenAL vendor string: OpenAL Community OpenAL renderer string: OpenAL Soft OpenAL version string: 1.1 ALSOFT 1.16.0 OpenAL extensions: AL_EXT_ALAW, AL_EXT_DOUBLE, AL_EXT_EXPONENT_DISTANCE, AL_EXT_FLOAT32, AL_EXT_IMA4, AL_EXT_LINEAR_DISTANCE, AL_EXT_MCFORMATS, AL_EXT_MULAW, AL_EXT_MULAW_MCFORMATS, AL_EXT_OFFSET, AL_EXT_source_distance_model, AL_LOKI_quadriphonic, AL_SOFT_block_alignment, AL_SOFT_buffer_samples, AL_SOFT_buffer_sub_data, AL_SOFT_deferred_updates, AL_SOFT_direct_channels, AL_SOFT_loop_points, AL_SOFT_MSADPCM, AL_SOFT_source_latency, AL_SOFT_source_length EFX version: 1.0 Max auxiliary sends: 4 Supported filters: Low-pass, High-pass, Band-pass Supported effects: EAX Reverb, Reverb, Chorus, Distortion, Echo, Flanger, Ring Modulator, Compressor, Equalizer, Dedicated Dialog, Dedicated LFE ------------------- This problem persisted, even following a clean installation with no PPAs installed. I'm assuming the problem is in OpenAL, because programs not making use of that library (YouTube, VLC, etc.) don't seem to have the problem. The update that seemed to be the breaking point was an update to kernel 4.2.0-34 (I no longer have the original system, thinking a full restore would fix things), so there might be something in the new kernel that's interfering with OpenAL. ------------------- The required information: Description: Ubuntu 15.10 Release: 15.10 libopenal1: Installed: 1:1.16.0-3 Candidate: 1:1.16.0-3 Version table: *** 1:1.16.0-3 0 500 http://us.archive.ubuntu.com/ubuntu/ wily/universe amd64 Packages 100 /var/lib/dpkg/status ------------------- Please let me know if there's any additional information that I will need to provide. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openal-soft/+bug/1562208/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
