Revision 3f74249057827c5f6676c41c18f6be12ce1469ce authored by Hui Wang on 14 September 2020, 06:51:18 UTC, committed by Takashi Iwai on 21 September 2020, 08:25:16 UTC
We found a Mic detection issue on many Lenovo laptops, those laptops belong to differnt models and they have different audio design like internal mic connects to the codec or PCH, they all have this problem, the problem is if plugging a headset before powerup/reboot the machine, after booting up, the headphone could be detected but Mic couldn't. If we plug out and plug in the headset, both headphone and Mic could be detected then. Through debugging we found the codec on those laptops are same, it is alc257, and if we don't disable the 3k pulldown in alc256_shutup(), the issue will be fixed. So far there is no pop noise or power consumption regression on those laptops after this change. Cc: Kailang Yang <kailang@realtek.com> Cc: <stable@vger.kernel.org> Signed-off-by: Hui Wang <hui.wang@canonical.com> Link: https://lore.kernel.org/r/20200914065118.19238-1-hui.wang@canonical.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
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| File | Mode | Size |
|---|---|---|
| apparmor | ||
| bpf | ||
| integrity | ||
| keys | ||
| loadpin | ||
| lockdown | ||
| safesetid | ||
| selinux | ||
| smack | ||
| tomoyo | ||
| yama | ||
| Kconfig | -rw-r--r-- | 10.7 KB |
| Kconfig.hardening | -rw-r--r-- | 8.8 KB |
| Makefile | -rw-r--r-- | 1.3 KB |
| commoncap.c | -rw-r--r-- | 39.0 KB |
| device_cgroup.c | -rw-r--r-- | 21.1 KB |
| inode.c | -rw-r--r-- | 10.6 KB |
| lsm_audit.c | -rw-r--r-- | 10.8 KB |
| min_addr.c | -rw-r--r-- | 1.3 KB |
| security.c | -rw-r--r-- | 63.3 KB |
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