On Fri, 31 Dec 2021 14:12:21 +0100, Christian A. Ehrhardt wrote:
Hi,
I have a DELL Inspirion 3501 laptop with a cirrus cs8904 HDA codec. With more recent kernels the internal speakers stopped working. I bisected the issue and tracked it down to this commit
| commit c8b4f0865e82c14924c69c07d985af3ee9133316 | Author: Stefan Binding sbinding@opensource.cirrus.com | Date: Wed Aug 11 19:56:52 2021 +0100 | | ALSA: hda/cs8409: Remove unnecessary delays
After a bit of experimenting with the timeouts I came up with the patch below that fixes the issue for me.
However, I don't have the specs for the chip, i.e. I don't know what a theoretically correct value would be.
Suggested patch below, please consider inclusion.
regards ChristianFrom 9c796d221171c6d12fd84ae4f5c8315030c8c4ca Mon Sep 17 00:00:00 2001
From: "Christian A. Ehrhardt" lk@c--e.de Date: Fri, 31 Dec 2021 10:33:19 +0100 Subject: [PATCH 1/2] ALSA: hda/cs8409: Increase delay during jack detection
Commit c8b4f0865e82 reduced delays related to cs42l42 jack detection. However, the change was too aggressive. As a result internal speakers on DELL Inspirion 3501 ac8b4f0865e82re not detected.
Increase the delay in cs42l42_run_jack_detect() a bit.
Fixes: c8b4f0865e82 ("ALSA: hda/cs8409: Remove unnecessary delays") Signed-off-by: Christian A. Ehrhardt lk@c--e.de
Thanks, applied now.
Takashi