Comment 0 for bug 1927808

My laptop (Ollee L116HTN6SPW) has a Realtek 8821CE WiFi card.
Now at hirsute, this is "supported" in the linux-image-5.11.0-16-generic kernel,
and it works "well" for both WiFi and Bluetooth. However, this module (driver)
causes frequent freezes, randomly but usually within a few minutes of running
(thus very soon after boot): screen display remains frozen, no response to either
keyboard or mouse input. All I can do is to hold the power button to power off,
then reboot.

After reboot, I do not see any crash reports, nor logs about the freeze.
Please let me know if I should try to collect some info, and how.

For now I use the DKMS module/driver from
  https://github.com/tomaspinho/rtl8821ce
(having blacklisted rtw88_8821ce), and it seems to work perfectly.

ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: linux-image-5.11.0-16-generic 5.11.0-16.17
ProcVersionSignature: Ubuntu 5.11.0-16.17-generic 5.11.12
Uname: Linux 5.11.0-16-generic x86_64
ApportVersion: 2.20.11-0ubuntu65
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: psz 1189 F.... pulseaudio
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sat May 8 16:58:19 2021
InstallationDate: Installed on 2021-04-23 (14 days ago)
InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 004: ID 058f:5608 Alcor Micro Corp. USB 2.0 Camera
 Bus 001 Device 003: ID 0bda:c821 Realtek Semiconductor Corp. Bluetooth Radio
 Bus 001 Device 002: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Protempo Ltd L116HTN6SPW
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-16-generic root=UUID=f3700d1b-be99-4cb7-baef-c0f157487c64 ro quiet splash pci=noaer vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-5.11.0-16-generic N/A
 linux-backports-modules-5.11.0-16-generic N/A
 linux-firmware 1.197
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/26/2020
dmi.bios.release: 5.12
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: YHSM-BI-11.6-X116AR300-AA55C-195-A
dmi.board.asset.tag: Default string
dmi.board.name: Default string
dmi.board.vendor: Default string
dmi.board.version: Default string
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 10
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.ec.firmware.release: 1.6
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrYHSM-BI-11.6-X116AR300-AA55C-195-A:bd05/26/2020:br5.12:efr1.6:svnProtempoLtd:pnL116HTN6SPW:pvrDefaultstring:rvnDefaultstring:rnDefaultstring:rvrDefaultstring:cvnDefaultstring:ct10:cvrDefaultstring:
dmi.product.family: Notebook
dmi.product.name: L116HTN6SPW
dmi.product.sku: Default string
dmi.product.version: Default string
dmi.sys.vendor: Protempo Ltd