Bug 212435
| Summary: | RTL8821CE: rfe 4 isn't supported | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Jian-Hong Pan (jhp) |
| Component: | network-wireless | Assignee: | drivers_network-wireless (drivers_network-wireless) |
| Status: | RESOLVED CODE_FIX | ||
| Severity: | normal | CC: | fordfrog |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 5.10+ | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: | Full dmesg log | ||
Forgot to mention the tested kernel version which is latest mainline kernel 5.12-rc4+. Here is the Realtek wireless PCI device's information: 02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter [10ec:c821] Subsystem: AzureWave RTL8821CE 802.11ac PCIe Wireless Network Adapter [1a3b:3040] Flags: fast devsel, IRQ 42 I/O ports at e000 [size=256] Memory at fe900000 (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-c8-21-01 Capabilities: [158] Latency Tolerance Reporting Capabilities: [160] L1 PM Substates Capabilities: [170] Precision Time Measurement Capabilities: [17c] Vendor Specific Information: ID=0003 Rev=1 Len=054 <?> Kernel modules: rtw88_8821ce i have exactly the same chip and exactly the same issue. currently on kernel 5.13.4. i'd be glad to help if i could (patching, testing, reporting back...). The the RTL8821CE chip is recognized since kernel 5.16-rc3. However, it produces another bug mentioned in https://bugzilla.kernel.org/show_bug.cgi?id=215239 (In reply to Jian-Hong Pan from comment #4) > The the RTL8821CE chip is recognized since kernel 5.16-rc3. I found it is related these two commits: 5db4943a9d6f rtw88: 8821c: correct 2.4G tx power for type 2/4 NIC b789e3fe7047 rtw88: 8821c: support RFE type4 wifi NIC |
Created attachment 296053 [details] Full dmesg log We have a laptop equipped with AMD A4-9125 and Realtek RTL8821CE 802.11ac PCIe Wireless Network Adapter. I have tested with latest mainline kernel and the linux-firmware. The WiFi is always failed with the error message: [ 8.694896] rtw_8821ce 0000:02:00.0: enabling device (0000 -> 0003) [ 8.808629] rtw_8821ce 0000:02:00.0: Firmware version 24.8.0, H2C version 12 [ 8.830737] rtw_8821ce 0000:02:00.0: rfe 4 isn't supported [ 8.830881] rtw_8821ce 0000:02:00.0: failed to setup chip efuse info [ 8.830884] rtw_8821ce 0000:02:00.0: failed to setup chip information