View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0001025 | channel: elrepo/el7 | --elrepo--request-for-enhancement-- | public | 2020-07-23 19:02 | 2020-07-27 12:23 |
| Reporter | mohit131 | Assigned To | pperry | ||
| Priority | normal | Severity | major | Reproducibility | have not tried |
| Status | resolved | Resolution | no change required | ||
| Summary | 0001025: RTL8822ce wifi adapter not found on CentOS 7 | ||||
| Description | I have installed CentOS 7 on my new HP laptop which has Realtek Semiconductor Co., Ltd. RTL8822CE 802.11ac PCIe Wireless Network Adapter which I found out using 'lspci'. But I can't connect with wifi. It says wireless adapter not found. I have searched in \lib\firmware\rtlwifi but cant find rtl8822ce file. My laptop don't have LAN port, so I need wifi to work. I have tried other solution available online but they don't work. | ||||
| Additional Information | lspci -v output Realtek Semiconductor Co., Ltd. RTL8822CE 802.11ac PCIe Wireless Network Adapter Subsystem: Hewlett-Packard Company Device 85f7 Flags: bus master, fast devsel, latency 0, IRQ 17 I/O ports at 3000 [size=256] Memory at b1200000 (64-bit, non-prefetchable) [size=64K] Capabilities: [40] Power Management version 3 Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [70] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [148] Device Serial Number 00-e0-4c-ff-fe-c8-22-01 Capabilities: [158] Latency Tolerance Reporting Capabilities: [160] L1 PM Substates Kernel driver in use: rtw_pci Kernel modules: rtwpci Kernel version- 3.10.0-1127.13.1.el7.x86_64 lspci -nn output: 02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8822CE 802.11ac PCIe Wireless Network Adapter [10ec:c822] | ||||
| Tags | No tags attached. | ||||
| Reported upstream | |||||
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Moved to channel el7. |
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According to the device ID pairing [10ec:c822], it is supported by the rtwpci kernel module. Can you try: modprobe rtwpci and see what happens? |
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I have tried modprobe rtwpci, after pressing enter it goes to next line like it has executed the command. But nothing happens after that and wifi still not works. |
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Was rtw88 also loaded? After you have loaded those two modules with modprobe (do not use insmod), what do you see in dmesg? If you are unable to get it working, you are better off posting a support question for help in a RHEL/CentOS forum or mailing list where hopefully someone can help you and/or filing a bug with Red Hat if the driver has an issue, as this is not the right support venue for you. |
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Because the modprobe command did not complain anything, I assume rtw88 is also loaded as a dependency. At any rate lsmod should show both modules. |
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output for dmesg : [ 91.104015] rtw_pci 0000:02:00.0: stop vif 76:87:59:4e:c8:d5 on port 0 [ 94.667905] rtw_pci 0000:02:00.0: start vif 76:87:59:4e:c8:d5 on port 0 [ 94.668284] IPv6: ADDRCONF(NETDEV_UP): wlo1: link is not ready [ 94.668334] rtw_pci 0000:02:00.0: stop vif 76:87:59:4e:c8:d5 on port 0 When I used lsmod it gives rtwpci, but it is used by 0. |
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'used by 0 should' not be a problem. Can you confirm lsmod shows rtw88 and it is used by rtwpci? |
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@mohit131 I suggest you give kernel-ml a try to see if the driver(s) in the latest kernel would work you you. http://elrepo.org/tiki/kernel-ml |
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I have updated kernel to latest 5.7.10 and everything works fine. Thank you for your help. |
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In that case the bug would appear to be in the RHEL driver so I would suggest you file a bug report with Red Hat describing the issue and what you have done to demonstrate there is a bug in the distro driver. Closing this bug |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2020-07-23 19:02 | mohit131 | New Issue | |
| 2020-07-23 19:02 | mohit131 | Status | new => assigned |
| 2020-07-23 19:02 | mohit131 | Assigned To | => pperry |
| 2020-07-24 00:32 | toracat | Project | channel: elrepo/el6 => channel: elrepo/el7 |
| 2020-07-24 00:32 | toracat | Category | rtlwifi-firmware => --elrepo--request-for-enhancement-- |
| 2020-07-24 00:33 | toracat | Note Added: 0007069 | |
| 2020-07-24 00:47 | toracat | Note Added: 0007070 | |
| 2020-07-24 03:35 | mohit131 | Note Added: 0007071 | |
| 2020-07-24 04:16 | pperry | Note Added: 0007072 | |
| 2020-07-24 08:43 | toracat | Note Added: 0007074 | |
| 2020-07-24 18:38 | mohit131 | Note Added: 0007077 | |
| 2020-07-24 18:45 | toracat | Note Added: 0007078 | |
| 2020-07-26 12:36 | toracat | Note Added: 0007087 | |
| 2020-07-26 18:38 | mohit131 | Note Added: 0007088 | |
| 2020-07-27 05:19 | pperry | Note Added: 0007089 | |
| 2020-07-27 05:19 | pperry | Status | assigned => resolved |
| 2020-07-27 05:19 | pperry | Resolution | open => no change required |
