This bug was fixed in the package linux-oem - 4.15.0-1073.83
---------------
linux-oem (4.15.0-1073.83) bionic; urgency=medium
* bionic/linux-oem: 4.15.0-1073.83 -proposed tracker (LP: #1863592)
* Support Headset Mic on HP cPC (LP: #1862313)
- ALSA: hda/realtek - Fixed one of HP ALC671 platform Headset Mic supported
* alsa/hda/realtek: chain a fixup to an existing quirk to fix the heaset-mic
problem on 2 Dell machines (LP: #1858156)
- SAUCE: ALSA: hda - chain the headset fix to an existing quirk
-- Chia-Lin Kao (AceLan) <[email protected]> Mon, 17 Feb 2020
18:29:02 +0800
** Changed in: linux-oem (Ubuntu Bionic)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1862567
Title:
[SRU][B/OEM-B] Fix multitouch support on some devices
Status in linux package in Ubuntu:
Confirmed
Status in linux-oem package in Ubuntu:
Invalid
Status in linux source package in Bionic:
Fix Committed
Status in linux-oem source package in Bionic:
Fix Released
Bug description:
[Impact]
Some LG touchscreens reported themselves as generic touch devices,
actually it is multitouch devices.
Even after adding IDs in hid-multitouch, hid-generic will bind the device
still.
multitouch features are not supported.
[Fix]
commit e04a0442 make hid-generic work nicely with other drivers like
hid-multitouch.
If other drivers match the devices, hid-generic will step back.
This patch will benefit many devices to support their own drivers without
adding IDs.
[Test]
Verified on LG/ELAN/RAYDIUM touchscreens with positive results.
[Regression Potential]
Medium.
commit e04a0442 is included by 4.16 kernel, only bionic kernel should be
applied.
This commit is based on the other 3 patches, mostly changes are moving codes
to hid-quirk.c.
Backports are during to the other backports patches, these changes are moved
to
hid-quirk.c too.
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