Maintainership #26

tomaspinho · 2019-02-25T18:03:38Z

As of 28th February 2019, I will no longer have access to a machine with the Wi-Fi chip supported by this module. Therefore, I will no longer be able to maintain this repository from a functionality perspective.

If you are able to continue development, please contact me.

mamoit · 2019-02-25T22:16:33Z

I don't have the know how to maintain it, it was good while it lasted.
Obrigado :)

tomaspinho · 2019-03-02T11:42:23Z

The laptop I had with this Wi-Fi chip was a work laptop that I've since returned, because I'm in between jobs. However, I will try to keep merging Pull Requests and helping people out until someone more suited to the task comes along.

pawitp · 2019-06-16T08:31:05Z

RTW88 driver is getting merged into Linux 5.2

https://www.phoronix.com/scan.php?page=news_item&px=Realtek-RTW88-WiFi-Linux-Driver

EDIT: Oops, it's currently only supports 8822, but that's little bit closer to mainline support for this chipset.

tomaspinho · 2019-06-16T09:01:22Z

Great news! Once that supports rtl8821ce and is merged into the mainline, I will discontinue this project.

ghost · 2019-07-12T14:23:44Z

New Realtek Official linux driver, include RTL8821CE RTL8822CE
https://github.com/alanfox2000/realtek-linux

imakiro · 2019-07-24T05:01:45Z

New Realtek Official linux driver, include RTL8821CE RTL8822CE
https://github.com/alanfox2000/realtek-linux

Wow thanks for the git repo, the RTL8821CE driver package is really nice, the install.sh included compiles everything and now the 5ghz band is recognized and power management works (no more issues with resume from sleep). Maybe @tomaspinho could point to this new resource (or maybe the original manufacturer's FTP URL?).
BTW, I'm running a Lenovo 530 ARR on KDE neon (18.04) if it guides anyone.

tomaspinho · 2019-07-24T14:43:04Z

Thanks for bringing those to my attention. I'd like to update this repo with the latest code and keep the DKMS stuff/Arch AUR package going. Can someone link me to the original Realtek FTP so I can verify their origin?

Bleuzen · 2019-07-24T15:41:08Z

The people of endlessm also updated the sources in their repo.
https://github.com/endlessm/linux/tree/master/drivers/net/wireless/rtl8821ce
This source looks safe and you already used it in the past.

Not sure if it's the correct one I found, but the realtek driver ftp seems to be not public. You need username+password for it. As far as I read, only some oems have access. So we are forced to trust alanfox2000 or endlessm.

@tomaspinho

…ed with DFS. DFS (as client, not as AP) is supported by the Windows driver, and it seems to be implemented in this driver too, just disabled. This fixes most 5Ghz issues, like tomaspinho#34 and tomaspinho#47. Thanks to @tomaspinho for pointing me in the right direction.

tomaspinho · 2019-08-05T23:17:27Z

Hey, can someone help me out testing updated sources (from endlessm)?
#54

imakiro · 2019-08-05T23:18:45Z

Hey, can someone help me out testing updated sources (from endlessm)?
#54

Which branch should I checkout ?

tomaspinho · 2019-08-05T23:19:21Z

The one in the PR: v5.5.2

HBartolin · 2019-09-21T05:14:29Z

If you are able to continue development, please contact me.

Hi,

did you find someone to 'continue development' or not? I have some Java experience and C development 25 years before. Does it helps?

tomaspinho · 2019-09-21T21:41:28Z

@HBartolin no, I did not. I've just been maintaining this as best as possible without having access to the actual hardware. @harryyoud and @HashLIB have been a major help, though.

HBartolin · 2019-09-22T06:11:44Z

@tomaspinho Well, I have hardware that use RTL8821CE. I have basic knowledge of programming. If you want, I can be from tester to admin. If something doesn't know, Internet is here. :-)

bvkin · 2019-09-25T13:35:44Z

I wouldn't mind giving some time to help test either. I've written a fair amount of C code, however I don't have much experience writing drivers. I wrote a keyboard driver but that's about it. If there's some tasks I could contribute to please let me know.

Funeoz · 2019-10-19T10:17:54Z

Just found on LKML the expected release date of the driver for 8821CE with rtw88 : 2020.

tomaspinho · 2019-10-21T10:07:56Z

Just found on LKML the expected release date of the driver for 8821CE with rtw88 : 2020.

Yeah, not looking good. The upstream maintainers don't like the quality of code Realtek has been putting out, so they may even veto it outright. Only time will tell.

mconger · 2019-10-26T22:30:23Z

To tomaspinho: Not sure if this helps but it seems the Lenovo S145-IWL that I recently picked up at a Best Buy for about $230 has this particular Realtek card in the M.2 slot. Perhaps get a low cost computer and continue to maintain the driver that way? So far, except for the Realtek card, it's a great little Linux computer. Even has NVMe slot in addition to SATA.

Matty9191 · 2019-12-14T16:41:55Z

Hey @tomaspinho! Huge thanks for putting this repo together!! The driver works like a charm on Fedora 31!

tomaspinho · 2019-12-14T18:35:58Z

@Matty9191 good to know! 😄

9Lukas5 · 2020-04-16T23:22:42Z

Hey @tomaspinho ,

Since @shakna-israel mentioned in #139 the possibility that the kernel handles the wifi, I was curios to test that.

I removed the driver and tested the latest Ubuntu mainline kernel on my Ubuntu 18.04 (5.6.4 atm). Sadly I hadn't any wifi.

After rebooting to the signed hwe kernel used before to remove the 5.6.4 again, I've wifi currently. Can't see any sign of the module in place, but could you confirm that it's not installed?

Kernel is 5.3.0.46.102 according to apt

dkms status output has no sign of rtl8821ce module:

vhba, 20200106, 5.3.0-45-generic, x86_64: installed
vhba, 20200106, 5.3.0-46-generic, x86_64: installed

Is there anything I have to check, or is it handled by Ubuntu's default kernel?

Greetings, Lukas

SatanicRaw · 2020-04-17T06:22:18Z

What is the output of uname -a and lsmod?

SatanicRaw · 2020-04-17T06:30:57Z

rtw88 only supports 2 adapters, at the moment, this

vendor: 10ec ("Realtek Semiconductor Co., Ltd."), device: b822 ("RTL8822BE 802.11a / b / g / n / ac WiFi adapter")
vendor: 10ec ("Realtek Semiconductor Co., Ltd."), device: c822 ("RTL8822CE 802.11ac PCIe Wireless Network Adapter")

https://cateee.net/lkddb/web-lkddb/RTW88.html

Look at the output of lsusb, if the output is 10ec:b822 or 10ec:c822, then it’s lucky that your adapter is supported by the kernel.

9Lukas5 · 2020-04-17T09:46:37Z

unam -a:

Linux lukas-lt-hft 5.3.0-46-generic #38~18.04.1-Ubuntu SMP Tue Mar 31 04:17:56 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

lsmod

Module                  Size  Used by
uas                    24576  0
usb_storage            73728  1 uas
md4                    16384  0
cmac                   16384  1
nls_utf8               16384  3
cifs                  995328  2
libarc4                16384  1 cifs
fscache               368640  1 cifs
rfcomm                 81920  16
vboxnetadp             28672  0
vboxnetflt             28672  0
aufs                  258048  0
vboxdrv               483328  2 vboxnetadp,vboxnetflt
overlay               114688  0
bnep                   24576  2
zram                   32768  8
binfmt_misc            24576  1
snd_hda_codec_realtek   118784  1
snd_hda_codec_generic    81920  1 snd_hda_codec_realtek
ledtrig_audio          16384  2 snd_hda_codec_generic,snd_hda_codec_realtek
snd_hda_codec_hdmi     57344  1
snd_hda_intel          53248  7
snd_intel_nhlt         20480  1 snd_hda_intel
snd_hda_codec         131072  4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
uvcvideo               94208  0
snd_hda_core           90112  5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
edac_mce_amd           32768  0
snd_hwdep              20480  1 snd_hda_codec
videobuf2_vmalloc      20480  1 uvcvideo
cdc_ether              20480  0
snd_pcm               102400  5 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core
videobuf2_memops       20480  1 videobuf2_vmalloc
btusb                  57344  0
usbnet                 45056  1 cdc_ether
kvm_amd                94208  0
videobuf2_v4l2         24576  1 uvcvideo
btrtl                  20480  1 btusb
snd_seq_midi           20480  0
r8152                  65536  0
videobuf2_common       49152  2 videobuf2_v4l2,uvcvideo
btbcm                  16384  1 btusb
snd_seq_midi_event     16384  1 snd_seq_midi
ccp                    90112  1 kvm_amd
videodev              208896  3 videobuf2_v4l2,uvcvideo,videobuf2_common
btintel                24576  1 btusb
kvm                   655360  1 kvm_amd
nls_iso8859_1          16384  1
bluetooth             573440  43 btrtl,btintel,btbcm,bnep,btusb,rfcomm
mii                    16384  2 usbnet,r8152
mc                     53248  4 videodev,videobuf2_v4l2,uvcvideo,videobuf2_common
snd_rawmidi            36864  1 snd_seq_midi
irqbypass              16384  1 kvm
ecdh_generic           16384  1 bluetooth
hid_sensor_accel_3d    20480  1
ecc                    32768  1 ecdh_generic
input_leds             16384  0
8821ce               1806336  0
hid_sensor_trigger     20480  2 hid_sensor_accel_3d
industrialio_triggered_buffer    16384  1 hid_sensor_accel_3d
snd_seq                69632  2 snd_seq_midi,snd_seq_midi_event
wmi_bmof               16384  0
serio_raw              20480  0
hid_multitouch         28672  0
kfifo_buf              16384  1 industrialio_triggered_buffer
hid_sensor_iio_common    20480  2 hid_sensor_trigger,hid_sensor_accel_3d
snd_seq_device         16384  3 snd_seq,snd_seq_midi,snd_rawmidi
industrialio           73728  5 industrialio_triggered_buffer,hid_sensor_trigger,kfifo_buf,hid_sensor_accel_3d
joydev                 28672  0
snd_timer              36864  2 snd_seq,snd_pcm
snd                    86016  24 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_pcm,snd_rawmidi
k10temp                16384  0
snd_pci_acp3x          16384  0
soundcore              16384  1 snd
cfg80211              704512  1 8821ce
mac_hid                16384  0
sch_fq_codel           20480  6
vhba                   28672  0
msr                    16384  0
parport_pc             40960  0
ppdev                  24576  0
lp                     20480  0
parport                53248  3 parport_pc,lp,ppdev
ip_tables              32768  0
x_tables               40960  1 ip_tables
autofs4                45056  2
btrfs                1232896  1
xor                    24576  1 btrfs
zstd_compress         163840  1 btrfs
raid6_pq              114688  1 btrfs
libcrc32c              16384  1 btrfs
algif_skcipher         16384  0
af_alg                 24576  1 algif_skcipher
dm_crypt               45056  1
hid_logitech_hidpp     40960  0
hid_logitech_dj        24576  0
wacom                 114688  0
usbhid                 53248  2 wacom,hid_logitech_dj
hid_sensor_custom      24576  0
hid_sensor_hub         24576  4 hid_sensor_trigger,hid_sensor_iio_common,hid_sensor_accel_3d,hid_sensor_custom
hid_generic            16384  0
crct10dif_pclmul       16384  1
crc32_pclmul           16384  0
ghash_clmulni_intel    16384  0
amdgpu               4112384  42
aesni_intel           372736  3
amd_iommu_v2           20480  1 amdgpu
gpu_sched              32768  1 amdgpu
i2c_algo_bit           16384  1 amdgpu
aes_x86_64             20480  1 aesni_intel
ttm                   102400  1 amdgpu
crypto_simd            16384  1 aesni_intel
drm_kms_helper        180224  1 amdgpu
cryptd                 24576  3 crypto_simd,ghash_clmulni_intel
glue_helper            16384  1 aesni_intel
syscopyarea            16384  1 drm_kms_helper
sysfillrect            16384  1 drm_kms_helper
sysimgblt              16384  1 drm_kms_helper
fb_sys_fops            16384  1 drm_kms_helper
i2c_piix4              28672  0
drm                   491520  28 gpu_sched,drm_kms_helper,amdgpu,ttm
nvme                   45056  3
nvme_core             102400  5 nvme
wmi                    32768  1 wmi_bmof
i2c_hid                28672  0
video                  49152  0
i2c_amd_mp2_plat       20480  0
hid                   126976  8 i2c_hid,wacom,usbhid,hid_multitouch,hid_sensor_hub,hid_generic,hid_logitech_dj,hid_logitech_hidpp
i2c_amd_mp2_pci        20480  1 i2c_amd_mp2_plat

dmesg | grep rtl

[   17.210813] Bluetooth: hci0: RTL: rtl: examining hci_ver=08 hci_rev=000c lmp_ver=08 lmp_subver=8821
[   17.213776] Bluetooth: hci0: RTL: rtl: loading rtl_bt/rtl8821c_fw.bin
[   17.216367] Bluetooth: hci0: RTL: rtl: loading rtl_bt/rtl8821c_config.bin

In lspci -nn I was able to find this:

01:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter [10ec:c821]

So?

SatanicRaw · 2020-04-17T09:54:55Z

8821ce 1806336 0
lsmod shows that the 8821ce module is loaded, even though you deleted it via dkms, so wi-fi works. I do not know how dkms works when removing / adding kernel modules. I build them through make && make install.

9Lukas5 · 2020-04-17T10:49:10Z

Hm, how can I make sure the module is being removed again?

In the past I remember if I run the dkms-remove.sh I didn'thave wifi after reboot 🤔🤷‍♂️

tomaspinho · 2020-05-08T10:39:21Z

There is an official rtl8821ce driver available to OEMs in their FTP server. alanfox's repository was a mirror of the zip files they host in that server. You can find those zip files hosted in multiple places at different versions.

lr1729 · 2020-05-09T20:49:06Z

Actually, I've found that the official driver is in the Ubuntu focal package lists now, and you can install it with sudo apt install rtl8821ce-dkms. Strange that almost nobody mentioned this, and it's working perfectly for me so far.

dallenwilson · 2020-05-09T21:05:52Z

@ling1729 It's mentioned in the readme of this repo, under the Installation of Driver, Ubuntu & Debian section. It's more up-to-date than it used to be, but still appears to be older than the version available here.

lr1729 · 2020-05-09T21:07:56Z

Ah, so it's this driver not the official one?

airbornemihir · 2020-06-17T23:28:08Z

I'm not very skilled with driver development, but I'm basically dependent on this driver for my new laptop's wifi card. I'm wondering - could this code possibly be GPLv2-licensed and submitted to the Linux kernel for merging?

fierevere · 2020-10-12T11:13:51Z

Linux 5.9 merged rtw88_8821ce driver.
It works , but worse than this one and does have firmware issues.

airbornemihir · 2020-10-12T11:14:54Z

@fierevere good to know.

pawitp · 2020-10-12T14:42:25Z

I've just tested in Linux 5.9 driver, unfortunately, seems like it's not fully compatible with all hardware yet and I got this error

[    3.541494] rtw_8821ce 0000:03:00.0: Firmware version 24.5.0, H2C version 12
[    3.558760] rtw_8821ce 0000:03:00.0: rfe 2 isn't supported
[    3.558890] rtw_8821ce 0000:03:00.0: failed to setup chip efuse info
[    3.558893] rtw_8821ce 0000:03:00.0: failed to setup chip information

tomaspinho · 2020-10-12T15:34:17Z

I've sent the following email to one of Realtek's Linux developers, will report back if I get an answer:

Hello,

Apologies if this is not the correct way of getting in touch with rtw88 developers over at Realtek, but I have some questions regarding the support  completeness of rtw88 in regards to the 8821ce chip.

I've been maintaining a fork of rtl8821ce over at https://github.com/tomaspinho/rtl8821ce , keeping it compiling with newer kernels, but the module has been getting less stable over time. Over the last couple of years, a lot of the Linux users who have a 8821ce have been using that driver and that repository has accumulated a bit of a following.

When I got the news that rtw88 was in development and that it was going to support 8821ce, I was relieved. I no longer have hardware in my possession with the chip and have been relying on others to test the changes me and others have committed to the repository. I was aiming to archive the repository once Linux 5.9 was released as stable and that would serve as a stop gap kernel version, supporting both modules, allowing for a smooth transition for users.

In the last few months, however, folks following the repository have reported that rtw88 does not support all rfe versions of the chip and that it isn't as stable for 8821ce as rtl8821ce. My questions are as follows:

- Will support for 8821ce in rtw88 remain as is? Are improvements planned?
- What kernel version are you targeting for the above improvements, if planned?

Thank you a ton in advance for any clarifications.
Cumprimentos | Best regards,
Tomás Pinho

fierevere · 2020-10-12T21:15:31Z

I've just tested in Linux 5.9 driver, unfortunately, seems like it's not fully compatible with all hardware yet and I got this error
[    3.541494] rtw_8821ce 0000:03:00.0: Firmware version 24.5.0, H2C version 12
[    3.558760] rtw_8821ce 0000:03:00.0: rfe 2 isn't supported
[    3.558890] rtw_8821ce 0000:03:00.0: failed to setup chip efuse info
[    3.558893] rtw_8821ce 0000:03:00.0: failed to setup chip information

I have reported my findings here, but kernel driver worked for me, somehow...

https://bugzilla.kernel.org/show_bug.cgi?id=209623

alium · 2020-11-05T12:19:36Z

https://lkml.org/lkml/2020/8/5/253

I've just tested in Linux 5.9 driver, unfortunately, seems like it's not fully compatible with all hardware yet and I got this error
[    3.541494] rtw_8821ce 0000:03:00.0: Firmware version 24.5.0, H2C version 12
[    3.558760] rtw_8821ce 0000:03:00.0: rfe 2 isn't supported
[    3.558890] rtw_8821ce 0000:03:00.0: failed to setup chip efuse info
[    3.558893] rtw_8821ce 0000:03:00.0: failed to setup chip information
I have reported my findings here, but kernel driver worked for me, somehow...

https://bugzilla.kernel.org/show_bug.cgi?id=209623

GunpowderGuy · 2020-12-16T14:26:43Z

So, i gather realtek or whoever is mantaining the official driver hasn't commented on whether they will add support for all rfe versions

tomaspinho · 2021-02-24T00:58:31Z

It looks like support for 8821ce RFE type 2 will land in Linux 5.12. I will cease maintaining this driver once 5.12 stable is released.

Therefore, 5.12 will be a bridge version where this repository will still compile as users can migrate to using rtw88, which should support a hefty majority of 8821ce cards by then.

alium · 2021-02-24T07:49:35Z

It looks like support for 8821ce RFE type 2 will land in Linux 5.12. I will cease maintaining this driver once 5.12 stable is released.

A BIG FAT THANK YOU for your maintenance, because ONLY your driver for me works without problem.

tomaspinho · 2021-03-06T20:26:34Z

Has anyone had the chance to try our Linux 5.12-rc2, especially with a RFE 2 chip? How is it looking?

alium · 2021-03-06T21:31:36Z

Has anyone had the chance to try our Linux 5.12-rc2, especially with a RFE 2 chip? How is it looking?

I have RFE2 and i test 5.12-rc2 now.
[ 31.381238] rtw_8821ce 0000:09:00.0: Firmware version 24.8.0, H2C version 12
[ 31.886486] rtw_8821ce 0000:09:00.0: start vif ac:d5:64:b5:8c:73 on port 0
[ 31.887572] rtw_8821ce 0000:09:00.0: stop vif ac:d5:64:b5:8c:73 on port 0
[ 32.366323] rtw_8821ce 0000:09:00.0: start vif 26:11:50:e2:f6:12 on port 0

it could have been better :\ unfortunately he suffers on "timed out to flush queue 1" which causes the bit rate to be very low (8821ce 4000kB/s vs 520kB/s with rtw_8821ce when i download a file) + the network randomly reconnects

probably bug - same as pop-os/pop#1302

[ 324.301635] rtw_8821ce 0000:09:00.0: timed out to flush queue 1
[ 324.434983] rtw_8821ce 0000:09:00.0: timed out to flush queue 1
[ 326.291613] rtw_8821ce 0000:09:00.0: timed out to flush queue 1
[ 326.428272] rtw_8821ce 0000:09:00.0: timed out to flush queue 1
[ 326.838273] rtw_8821ce 0000:09:00.0: timed out to flush queue 1
[ 328.511578] rtw_8821ce 0000:09:00.0: timed out to flush queue 1
[ 329.041580] rtw_8821ce 0000:09:00.0: timed out to flush queue 1
[ 329.178258] rtw_8821ce 0000:09:00.0: timed out to flush queue 1
[ 330.301567] rtw_8821ce 0000:09:00.0: timed out to flush queue 1
[ 330.438238] rtw_8821ce 0000:09:00.0: timed out to flush queue 1
[ 331.238219] rtw_8821ce 0000:09:00.0: timed out to flush queue 1
[ 331.778214] rtw_8821ce 0000:09:00.0: timed out to flush queue 1
[ 332.288210] rtw_8821ce 0000:09:00.0: timed out to flush queue 1

wlan0 IEEE 802.11 ESSID:"devolo"
Mode:Managed Frequency:2.447 GHz Access Point: F4:06:8D:D8:02:6C
Bit Rate=39 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=19/70 Signal level=-91 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:28 Invalid misc:3205 Missed beacon:0

link quality varies between 19/70 and 62/70

Invalid misc:3205 Tx excessive retries:28 <--- i never had this problem with your driver

for now, I strongly recommend keeping your driver alive :-)

pawitp · 2021-03-07T01:05:35Z

Has anyone had the chance to try our Linux 5.12-rc2, especially with a RFE 2 chip? How is it looking?

Works fine for me with no speed issues. (I never had any speed issue.)

02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter
	DeviceName: WLAN
	Subsystem: Hewlett-Packard Company Device 831a
	Flags: bus master, fast devsel, latency 0, IRQ 57, IOMMU group 8
	I/O ports at 2000 [size=256]
	Memory at c0800000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: rtw_8821ce
	Kernel modules: rtw88_8821ce

alium · 2021-03-07T07:38:36Z

Has anyone had the chance to try our Linux 5.12-rc2, especially with a RFE 2 chip? How is it looking?

Works fine for me with no speed issues. (I never had any speed issue.)

02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter
	DeviceName: WLAN
	Subsystem: Hewlett-Packard Company Device 831a
	Flags: bus master, fast devsel, latency 0, IRQ 57, IOMMU group 8
	I/O ports at 2000 [size=256]
	Memory at c0800000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: rtw_8821ce
	Kernel modules: rtw88_8821ce

it's that really RFE2 chip?

pawitp · 2021-03-07T07:40:54Z

it's that really RFE2 chip?

See #26 (comment)

alium · 2021-03-07T07:42:37Z

it's that really RFE2 chip?

See #26 (comment)

OK thanks. interestingly.
Can you put a link with your dmesg here? I never had any speed issue before (with 8821ce driver).

pawitp · 2021-03-07T08:04:20Z

There's nothing else relevant in there.

alvarotroya · 2021-04-08T16:24:15Z

A big fat thank you from me too! Your drivers are the only that worked for me (debian sid, kernel 5.10)! The package firmware-realtek didn't help me because of the RFE2 issue detailed here!

alium · 2021-04-27T13:31:48Z

hi, i tried kernel (linux-zen) 5.12.0. This kernel support now 8821ce RFE2 ... but as i wrote above, the driver is not enough good. Your driver is much better (no TX drop, better speed).

Yesterday i bought a new laptop with Ryzen3 for one small company and inside is coincidentally Rtw8821ce :-D
So i tried 5.12 kernel... and.... no chance :D :D this newest Realtek 8821 contain now RFE4 !! and (of course) not supported by kernel...
But which driver works out-of-box? rtl8821ce from @tomaspinho ! So we need your driver and your works! Thank you so much!!!

tomaspinho · 2021-04-27T13:35:26Z

So I guess I'm never getting rid of this 😅

GunpowderGuy · 2021-05-03T18:31:07Z

@alium Realteks driver may also be causing crashes. Linux's 5,12 version of the driver added compatibilty for my laptops version of rtl8821ce, but it causes intermittent crashes

crazyaccess · 2022-02-01T11:18:50Z

Well it is still crashing in Linux Generic 5.15 from ubuntu / pop repositories,

I tried installing the offical rtl8821ce's driver package from pop repos -> not working | kernel panic
I tried installing the tomas pinho's driver ( was working untill recently ) -> wifi driver doesn't show up.

I partially know that its due to Pop OS's mess in the kernel...

I mean TKG said so :

crazyaccess · 2022-02-01T11:19:48Z

It works perfectly on Arch Linux tho

kelebek333 · 2022-02-01T12:26:37Z

I tried installing the tomas pinho's driver ( was working untill recently ) -> wifi driver doesn't show up.

You must add rtw88_8821ce built-in module to blacklist. https://github.com/tomaspinho/rtl8821ce#wi-fi-not-working-for-kernel--59

crazyaccess · 2022-02-02T15:10:18Z

I tried installing the tomas pinho's driver ( was working untill recently ) -> wifi driver doesn't show up.

You must add rtw88_8821ce built-in module to blacklist. https://github.com/tomaspinho/rtl8821ce#wi-fi-not-working-for-kernel--59

Well i did that already, the issue presists

( actually was doing it since the 510 kernel came out 😅 )

blu002e · 2023-02-26T14:21:09Z

i need your help. i am on debian12 linux kernel 6.x

root@localhost:/home/user/rtl8821ce# sudo ./dkms-install.sh
About to run dkms install steps...
Error! DKMS tree already contains: rtl8821ce-v5.5.2_34066.20200325
You cannot add the same module/version combo more than once.
Sign command: /usr/lib/linux-kbuild-6.1/scripts/sign-file
Signing key: /var/lib/dkms/mok.key
Public certificate (MOK): /var/lib/dkms/mok.pub

Building module:
Cleaning build area...
'make' -j4 KVER=6.1.0-3-amd64.................(bad exit status: 2)
Error! Bad return status for module build on kernel: 6.1.0-3-amd64 (x86_64)
Consult /var/lib/dkms/rtl8821ce/v5.5.2_34066.20200325/build/make.log for more information.
Sign command: /usr/lib/linux-kbuild-6.1/scripts/sign-file
Signing key: /var/lib/dkms/mok.key
Public certificate (MOK): /var/lib/dkms/mok.pub

Building module:
Cleaning build area...
'make' -j4 KVER=6.1.0-3-amd64....(bad exit status: 2)
Error! Bad return status for module build on kernel: 6.1.0-3-amd64 (x86_64)
Consult /var/lib/dkms/rtl8821ce/v5.5.2_34066.20200325/build/make.log for more information.
Finished running dkms install steps.
root@localhost:/home/user/rtl8821ce# sudo modprobe -r rtw88_pci
root@localhost:/home/user/rtl8821ce# sudo modprobe -r rtw88_8821c
root@localhost:/home/user/rtl8821ce# sudo modprobe -r rtw88_8821ce
root@localhost:/home/user/rtl8821ce# sudo modprobe -r rtw88_8821ce
root@localhost:/home/user/rtl8821ce# sudo modprobe -r rtw88_8821
modprobe: FATAL: Module rtw88_8821 not found.

Syniurge mentioned this issue Jul 25, 2019

Enable CONFIG_DFS, to support 5Ghz bands only allowed with DFS #50

Merged

9Lukas5 mentioned this issue Dec 28, 2019

Mainline this driver #113

Closed

JRDetwiler mentioned this issue Feb 9, 2020

Sometimes no reconnect after wake in Ubuntu 19.10 #118

Open

Maintainership #26

Maintainership #26

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