This bug was fixed in the package linux - 4.4.0-77.98
---------------
linux (4.4.0-77.98) xenial; urgency=low
* linux: 4.4.0-77.98 -proposed tracker (LP: #1686040)
* [Hyper-V][SAUCE] pci-hyperv: Use only 16 bit integer for PCI domain
(LP: #1684971)
- SAUCE: pci-hyperv: Use only 16 bit integer for PCI domain
* Upgrade Redpine WLAN/BT driver to ver. 1.2.RC4 (LP: #1669672)
- SAUCE: sdhci: use PCI ID to identify Dell IoT gateways
- SAUCE: Redpine: Upgrade to ver. 1.2.RC4
- [Config] Update CONFIG_VEN_RSI_* configs
- SAUCE: Redpine: add copyright to kernel packages
* Fix RX fail issue on Exar USB serial driver after resume from S3/S4
(LP: #1685133)
- SAUCE: xr-usb-serial: Update driver for Exar USB serial ports
* Miscellaneous Ubuntu changes
- [Config] updating configs to match redpine driver changes
-- Kleber Sacilotto de Souza <kleber.so...@canonical.com> Tue, 25 Apr
2017 19:32:01 +0200
** Changed in: linux (Ubuntu Xenial)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1685133
Title:
Fix RX fail issue on Exar USB serial driver after resume from S3/S4
Status in HWE Next:
Confirmed
Status in linux package in Ubuntu:
Confirmed
Status in linux source package in Xenial:
Fix Released
Bug description:
Resolution of LP: #1645591 added support for Exar USB UART devices in
Ubuntu Xenial kernel. However, the devices fail to RX data after
system resumes from suspend-to-ram(S3) and suspend-to-disk(S4). This
bug is to track the integration of the driver released by the vendor
to fix this issue.
Changelog:
Version 1B, 11/6/2015
Fixed Bug: The conditional logic to support kernel 3.9 was incorrect(line 396
in xr_usb_serial_common.c).
Version 1A, 1/9/2015
This driver will work with any USB UART function in these Exar devices:
XR21V1410/1412/1414
XR21B1411
XR21B1420/1422/1424
XR22801/802/804
Exar serial devices are typically enuremated as /dev/ttyXRUSB[0-3]
This bug is used for tracking purposes, please do not triage.
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