Although it occasionally works, I am usually unable to get any sound out of
the speakers on a dell latitude e7240 using alsa-1.0.28 and linux-3.16.3 -
see details at the end of the post.
Most of the time, I see the error:
snd_hda_intel 0000:00:1b.0: IRQ timing workaround is activated for card #1.
Suggest a bigger bdl_pos_adj.
I've tried various module options:
options snd_hda_intel probe_only=0,1
options snd-hda-intel enable_msi=1 bdl_pos_adj=1,32 [and 48 and 64]
options snd-hda-intel id=PCH index=1
..all to no avail.
Any additional troubleshooting suggestions would be much appreciated.
John
----------
$ lspci | grep -i audio
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev
0b)
00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev
04)
$ cat /proc/asound/cards
0 [HDMI ]: HDA-Intel - HDA Intel HDMI
HDA Intel HDMI at 0xf7e34000 irq 65
1 [PCH ]: HDA-Intel - HDA Intel PCH
HDA Intel PCH at 0xf7e30000 irq 64
$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: HDMI [HDA Intel HDMI], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 0: ALC3226 Analog [ALC3226 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
$ cat /proc/asound/card*/codec* | grep Codec
Codec: Intel Haswell HDMI
Codec: Realtek ALC3226
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