** Description changed:
- Steps:
- 1) install bto and boot into OS
- 2) check sound setting,
- 3) Plugin headset
- 4) check external microphone
+ == SRU Justification ==
+ We have a OEM bug #1727951, in this bug, The Dell OptiPlex 7460 AIO can't
+ detect external mic and can't record sound via external mic. After applying
+ the fixup of ALC274_FIXUP_DELL_AIO_LINEOUT_VERB, the problem can be fixed.
- Expected results: external microphone should wrok well
+ == Fix ==
+ 40e2c4e5("iALSA: hda/realtek - Add headset mode support for Dell laptop")
- Actual results: No external microphone be detected
+ == Regression Potential ==
+ very low, since this patch only applies to specific Dell machines which have
subsystem id: 1028084b and 1028084e.
+
+
+ == Test Case ==
+ plug the headset and record the sound on this machine, we can see the
+ external mic in the sound-setting and can record sound through this mic.
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https://bugs.launchpad.net/bugs/1755954
Title:
external mic not work on Dell OptiPlex 7460 AIO
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