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can post the output of alsa-info.sh after jack retasking ?
Before retasking:
http://www.alsa-project.org/db/?f=fd97b8194e205b4f91127bca74ad7c9b2cd93ab9
After retasking blue line in, pin ID 0x1a as Line out (Side):
http://www.alsa-project.org/db/?f=d56f9a6d0692c9a8d5c88f43100a6cb78407c163
Note that retasking did not work: attempting to play a 8-channel wav file through hw:1,0 resulted in an "Invalid argument" error.
FWIW, here is what hdajackretask printed to the console:
0x11 0x99430130 0x12 0x4037c540 0x14 0x01014010 0x15 0x01011012 0x16 0x01016011 0x17 0x411111f0 0x18 0x01a19050 0x19 0x02a19060 0x1a 0x01014413 0x1b 0x02214020 0x1c 0x411111f0 0x1d 0x4045e601 0x1e 0x01452140 0x1f 0x411111f0 1
you need root privilege for hdajackretask to write the firmware file to /lib/firmware and modify /etc/modprobe.d/alsa-lbase.conf to use the firmware file
can you try the patch which add "channel mode" control which allow you to switch from 6ch to 8ch
it is not clear that the "Line jack" control is used for detect the blue jack state or reflect the line In is no longer available after it is retasked as output jack