rtl8821ce
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Random disconnect, requires reconnect.
Dec 13 17:35:53 studentfox kernel: ------------[ cut here ]------------
Dec 13 17:35:53 studentfox kernel: WARNING: CPU: 5 PID: 502 at /var/lib/dkms/rtl8821ce/1.0.5.r76.g7c4f827/build/hal/hal_com.c:11447 rtw_lps_state_chk+0x34/0x3a [8821ce]
Dec 13 17:35:53 studentfox kernel: Modules linked in: fuse snd_hda_codec_hdmi amdgpu joydev nls_iso8859_1 mousedev nls_cp437 edac_mce_amd kvm_amd vfat hid_multitouch fat ccp hid_generic kvm>
Dec 13 17:35:53 studentfox kernel: libps2 libata xhci_pci scsi_mod xhci_hcd crc32c_intel i8042 serio
Dec 13 17:35:53 studentfox kernel: CPU: 5 PID: 502 Comm: RTW_CMD_THREAD Tainted: G OE 5.4.2-arch1-1 #1
Dec 13 17:35:53 studentfox kernel: Hardware name: ASUSTeK COMPUTER INC. TUF Gaming FX505DT_FX505DT/FX505DT, BIOS FX505DT.308 09/19/2019
Dec 13 17:35:53 studentfox kernel: RIP: 0010:rtw_lps_state_chk+0x34/0x3a [8821ce]
Dec 13 17:35:53 studentfox kernel: Code: 55 53 48 89 fd bb 0b 00 00 00 be 04 06 00 00 48 89 ef e8 d7 7a f9 ff 84 c0 79 11 bf 01 00 00 00 e8 b1 7f fd ff 80 eb 01 75 e0 <0f> 0b 5b 5d c3 c3 0f>
Dec 13 17:35:53 studentfox kernel: RSP: 0018:ffffb4fac079bc90 EFLAGS: 00010246
Dec 13 17:35:53 studentfox kernel: RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
Dec 13 17:35:53 studentfox kernel: RDX: ffff9bf6d735de00 RSI: 0000000000000005 RDI: ffffb4fac079bbe0
Dec 13 17:35:53 studentfox kernel: RBP: ffffb4fac0511000 R08: 0000000000000000 R09: 00000000000007c2
Dec 13 17:35:53 studentfox kernel: R10: 0000000000000003 R11: ffff9bf6d73697c0 R12: ffffb4fac079bd4c
Dec 13 17:35:53 studentfox kernel: R13: ffffb4fac07b5000 R14: ffffb4fac07b5000 R15: 0000000000000000
Dec 13 17:35:53 studentfox kernel: FS: 0000000000000000(0000) GS:ffff9bf6d7340000(0000) knlGS:0000000000000000
Dec 13 17:35:53 studentfox kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec 13 17:35:53 studentfox kernel: CR2: 00007f0645009130 CR3: 00000001d10ac000 CR4: 00000000003406e0
Dec 13 17:35:53 studentfox kernel: Call Trace:
Dec 13 17:35:53 studentfox kernel: SetHwReg+0x17b/0x703 [8821ce]
Dec 13 17:35:53 studentfox kernel: rtl8821c_sethwreg+0xce9/0xd3c [8821ce]
Dec 13 17:35:53 studentfox kernel: sethwreg+0x25/0x140 [8821ce]
Dec 13 17:35:53 studentfox kernel: rtw_hal_set_hwreg+0x15/0x16 [8821ce]
Dec 13 17:35:53 studentfox kernel: rtw_set_ps_mode+0xd7/0x1e7 [8821ce]
Dec 13 17:35:53 studentfox kernel: LPS_Leave+0xcc/0xeb [8821ce]
Dec 13 17:35:53 studentfox kernel: traffic_status_watchdog+0x1de/0x2e4 [8821ce]
Dec 13 17:35:53 studentfox kernel: ? _rtw_mi_dynamic_check_timer_handlder+0x10/0x10 [8821ce]
Dec 13 17:35:53 studentfox kernel: ? session_tracker_cmd_hdl+0x1bf/0x1bf [8821ce]
Dec 13 17:35:53 studentfox kernel: rtw_iface_dynamic_chk_wk_hdl+0x55/0x1a2 [8821ce]
Dec 13 17:35:53 studentfox kernel: ? _rtw_mi_dynamic_check_timer_handlder+0x10/0x10 [8821ce]
Dec 13 17:35:53 studentfox kernel: _rtw_mi_dynamic_chk_wk_hdl+0xa/0x10 [8821ce]
Dec 13 17:35:53 studentfox kernel: _rtw_mi_process+0x60/0x75 [8821ce]
Dec 13 17:35:53 studentfox kernel: rtw_mi_dynamic_chk_wk_hdl+0x1b/0x1c [8821ce]
Dec 13 17:35:53 studentfox kernel: rtw_dynamic_chk_wk_hdl+0xe/0x45 [8821ce]
Dec 13 17:35:53 studentfox kernel: rtw_drvextra_cmd_hdl+0xa9/0x415 [8821ce]
Dec 13 17:35:53 studentfox kernel: rtw_cmd_thread+0x295/0x3ed [8821ce]
Dec 13 17:35:53 studentfox kernel: ? _raw_spin_lock_irqsave+0x26/0x50
Dec 13 17:35:53 studentfox kernel: kthread+0xfb/0x130
Dec 13 17:35:53 studentfox kernel: ? rtw_stop_cmd_thread+0x39/0x39 [8821ce]
Dec 13 17:35:53 studentfox kernel: ? kthread_park+0x90/0x90
Dec 13 17:35:53 studentfox kernel: ret_from_fork+0x22/0x40
Dec 13 17:35:53 studentfox kernel: ---[ end trace 39f3cf551aeedfde ]---
You can try to create a configuration file for disabling power management with following command. Reboot your PC after running the command.
bash -c "echo -e 'options 8821ce rtw_power_mgnt=0' | sudo tee /etc/modprobe.d/8821ce-powersave.conf"