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RE: PCIe Bus Error from rtw_8821ce

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Cem ÜNAL <cemunal@xxxxxxxxxxxxx> wrote:
> I am testing build-in kernel drivers for rtw_8821ce and getting same error logs only. Here is some info:
> 
> sudo lspci -v:
> 
> 02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter
> Subsystem: AzureWave Device 3040
> Flags: bus master, fast devsel, latency 0, IRQ 130
> I/O ports at e000 [size=256]
> Memory at ef000000 (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, IntMsgNum 0
> 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 driver in use: rtw_8821ce
> Kernel modules: rtw88_8821ce
> __________
> 
> uname -r:
> 
> 6.10.9-200.fc40.x86_64
> __________
> 
> sudo dmesg | grep rtw:
> 
> [ 7.785903] rtw_8821ce 0000:02:00.0: enabling device (0000 -> 0003)
> [ 7.799541] rtw_8821ce 0000:02:00.0: Firmware version 24.11.0, H2C version 12
> [ 7.852418] rtw_8821ce 0000:02:00.0 wlp2s0: renamed from wlan0
> [ 143.722023] rtw_8821ce 0000:02:00.0: PCIe Bus Error: severity=Correctable, type=Physical Layer, (Receiver
> ID)
> [ 143.722043] rtw_8821ce 0000:02:00.0: device [10ec:c821] error status/mask=00000001/0000e000
> [ 143.722058] rtw_8821ce 0000:02:00.0: [ 0] RxErr (First)
> [ 161.626544] rtw_8821ce 0000:02:00.0: PCIe Bus Error: severity=Correctable, type=Physical Layer, (Receiver
> ID)

Suggest to turn of power save by editing /etc/modprobe.d/70-rtw88.conf
with these two options:

  options rtw88_pci disable_aspm=y
  options rtw88_core disable_lps_deep=y

Then cool reboot your computer. 






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