Add support for Realtek WiFi device RTL8821CE [10ec:c821]

Bug #1740231 reported by Jesse Sung
60
This bug affects 11 people
Affects Status Importance Assigned to Milestone
HWE Next
Fix Released
Undecided
Unassigned
Bionic
Won't Fix
Undecided
Unassigned
linux (Ubuntu)
Fix Released
Undecided
Unassigned
linux-oem (Ubuntu)
Fix Released
Undecided
Jesse Sung
Xenial
Fix Released
Undecided
Unassigned

Bug Description

PCI ID: 10ec:c821

The off-tree driver is attached.

CVE References

Revision history for this message
Jesse Sung (wenchien) wrote :
Jesse Sung (wenchien)
tags: added: originate-from-1734607 stella
Revision history for this message
Jesse Sung (wenchien) wrote :

An update from Realtek to address an AP switching issue.

Changed in linux-oem (Ubuntu Xenial):
status: New → Fix Committed
Revision history for this message
Launchpad Janitor (janitor) wrote :
Download full text (13.4 KiB)

This bug was fixed in the package linux-oem - 4.13.0-1017.18

---------------
linux-oem (4.13.0-1017.18) xenial; urgency=low

  * linux-oem: 4.13.0-1017.18 -proposed tracker (LP: #1743418)

  * Realtek card reader - RTS5243 [VEN_10EC&DEV_5260] (LP: #1737673)
    - mmc: rtsx: fix tuning fail on gen3 PCI-Express
    - mfd: rts5249: Add support for RTS5250S power saving
    - misc: rtsx: Move Realtek Card Reader Driver to misc
    - misc: rtsx: Add support for RTS5260
    - misc: rtsx: Fix symbol clashes
    - [Config] update configs for RTSX

  * Realtek card reader power consumption issue (LP: #1743516)
    - mfd: Fix RTS5227 (and others) powermanagement

  [ Ubuntu: 4.13.0-30.33 ]

  * linux: 4.13.0-30.33 -proposed tracker (LP: #1743412)
  * Do not duplicate changelog entries assigned to more than one bug or CVE
    (LP: #1743383)
    - [Packaging] git-ubuntu-log -- handle multiple bugs/cves better
  * Unable to handle kernel NULL pointer dereference at isci_task_abort_task
    (LP: #1726519)
    - Revert "scsi: libsas: allow async aborts"
  * CVE-2017-5715 // CVE-2017-5753
    - SAUCE: x86/microcode: Extend post microcode reload to support IBPB feature
      -- repair missmerge
    - Revert "x86/svm: Add code to clear registers on VM exit"
    - kvm: vmx: Scrub hardware GPRs at VM-exit

linux-oem (4.13.0-1016.17) xenial; urgency=low

  * linux-oem: 4.13.0-1016.17 -proposed tracker (LP: #1742728)

  * Add support for Realtek Bluetooth device [0bda:b00a] (LP: #1742613)
    - SAUCE: Import Bluetooth driver for Realtek 8821CE
    - SAUCE: Make rtl8821ce-bt work with 0bda:b00a only
    - SAUCE: rtl8821ce-bt: append device ID to config filename
    - SAUCE: bluetooth: Blacklist 0bda:b00a
    - SAUCE: build ubuntu/rtl8821ce-bt for x86 only

  * Add support for Realtek WiFi device [10ec:c821] (LP: #1740231)
    - SAUCE: Import RTL8821CE driver
    - SAUCE: Add ubuntu/rtl8821ce into build script
    - SAUCE: Sync ubuntu/rtl8821ce with a new release from Realtek

  * External HDMI monitor failed to show screen on Lenovo X1 series
    (LP: #1738523)
    - SAUCE: drm/i915: Disable writing of TMDS_OE on Lenovo ThinkPad X1 series

  * Support realtek new codec alc257 in the alsa hda driver (LP: #1738911)
    - ALSA: hda/realtek - New codec support for ALC257

  * QCA Rome bluetooth can not wakeup after USB runtime suspended.
    (LP: #1737890)
    - Bluetooth: btusb: driver to enable the usb-wakeup feature

  * Intel 9260/9462/9560 can't connect to 5GHz AP (LP: #1736639)
    - iwlwifi: mvm: enable RX offloading with TKIP and WEP
    - iwlwifi: mvm: mark MIC stripped MPDUs

  * [Artful][Wyse 3040] System hang when trying to enable an offlined CPU core
    (LP: #1736393)
    - SAUCE: drm/i915:Don't set chip specific data
    - SAUCE: drm/i915: make previous commit affects Wyse 3040 only

  * Touchpad stops working after a few seconds in Lenovo ideapad 320
    (LP: #1732056)
    - pinctrl/amd: fix masking of GPIO interrupts

  [ Ubuntu: 4.13.0-29.32 ]

  * linux: 4.13.0-29.32 -proposed tracker (LP: #1742722)
  * CVE-2017-5754
    - Revert "x86/cpu: Implement CPU vulnerabilites sysfs functions"
    - Revert "sysfs/cpu: Fix typos in vulnerability documentatio...

Changed in linux-oem (Ubuntu Xenial):
status: Fix Committed → Fix Released
Jesse Sung (wenchien)
Changed in linux-oem (Ubuntu):
status: In Progress → Fix Released
Changed in hwe-next:
status: New → Fix Released
no longer affects: linux (Ubuntu Xenial)
Changed in linux (Ubuntu):
assignee: nobody → Jesse Sung (wenchien)
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote : Missing required logs.

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1740231

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu):
status: New → Incomplete
Revision history for this message
Me Mario (metoomario-deactivatedaccount) wrote : Re: Add support for Realtek WiFi device [10ec:c821]

This is still broken in 18.10 and 18.04. Are there any plans to fix for 18.10? I can test if you give me instructions.

Revision history for this message
Jesse Sung (wenchien) wrote :

Unfortunately this won't make it to the bionic kernel. For 4.15, as a temporary solution, please try https://launchpad.net/~wenchien/+archive/ubuntu/rtl8821c .

Revision history for this message
ihsan (ihsanm188) wrote :

thank you

Changed in linux (Ubuntu):
assignee: Jesse Sung (wenchien) → Kai-Heng Feng (kaihengfeng)
status: Incomplete → Triaged
Revision history for this message
Kai-Heng Feng (kaihengfeng) wrote :

I filed a new bug to track the SRU status: #1829220

Changed in linux (Ubuntu):
assignee: Kai-Heng Feng (kaihengfeng) → nobody
summary: - Add support for Realtek WiFi device [10ec:c821]
+ Add support for Realtek WiFi device RTL8821CE [10ec:c821]
tags: added: bionic
Timo Aaltonen (tjaalton)
Changed in linux (Ubuntu):
status: Triaged → Fix Released
Changed in hwe-next:
status: Confirmed → Fix Released
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