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Everytime I boot into my freshly installed Ubuntu 16.04 in my HP Probook, the login screen freezes. I go to tty1 and see that there are some messages. here are they -

[360.192016] INFO: task pulseaudio:1143 blocked for more than 120 seconds
[360.192136] Not tainted 4.4.0-47-generic #68-Ubuntu

I think i am having issues with audio in the laptop. It freezes before the ubuntu boot sound can play. I get this error as well -

snd_hda_codec_hdmi hdaudioC0D2: Unable to sync register 0x2f0d00. -11
snd_hda_codec_hdmi hdaudioC0D2: Unable to sync register 0x2f0d00. -11
snd_hda_intel 0000:00:1f.3: azx_get_response timeout, switching to single_cmd mode: last cmd=0x01320000
snd_hda_codec_hdmi hdaudioC0D2: Unable to sync register 0x2f0d00. -5

Sometimes it boots fine with sound. How can i fix this?

Dan
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1 Answers1

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Found the answer here and it works.

No sound on Ubuntu 15.10

So i created a file /etc/modprobe.d/intel.conf and added the following options -

options snd-hda-intel single_cmd=1
options snd-hda-intel probe_mask=1

And rebooted. Problem solved :)

Community
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Dan
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