Hi, I was experiencing issues when trying to get hibernate work: about more than half time, my computer was freezing on hibernate. I've finally found the problem: the ath10k_pci module. If I remove this module before hibernate, no more freeze. Just have to modprobe it on thaw, my wireless connection gets back itself and I'm good to continue. I've also checked dmesg, and rmmod ath10k_pci causes a firmware crash: [ 1983.338397] wlp2s0: deauthenticating from 44:ce:7d:34:fb:ac by local choice (Reason: 3=DEAUTH_LEAVING) [ 1983.345358] ath10k_pci 0000:02:00.0: firmware crashed! (guid 0263f381-ffa9-4f00-bec5-a320c2789234) [ 1983.345362] ath10k_pci 0000:02:00.0: qca6174 hw2.1 target 0x05010000 chip_id 0x003405ff sub 1a56:1525 [ 1983.345363] ath10k_pci 0000:02:00.0: kconfig debug 0 debugfs 0 tracing 0 dfs 0 testmode 0 [ 1983.345657] ath10k_pci 0000:02:00.0: firmware ver SW_RM.1.1.1-00157-QCARMSWPZ-1 api 5 features ignore-otp,no-4addr-pad crc32 10bf8e08 [ 1983.345867] ath10k_pci 0000:02:00.0: board_file api 2 bmi_id N/A crc32 ae2e275a [ 1983.345869] ath10k_pci 0000:02:00.0: htt-ver 3.1 wmi-op 4 htt-op 3 cal otp max-sta 32 raw 0 hwcrypto 1 [ 1983.347874] ath10k_pci 0000:02:00.0: firmware register dump: [ 1983.347876] ath10k_pci 0000:02:00.0: [00]: 0x05010000 0x00000000 0x0092E4DC 0x4DE697C1 [ 1983.347877] ath10k_pci 0000:02:00.0: [04]: 0x0092E4DC 0x00060130 0x00000018 0x0041A760 [ 1983.347878] ath10k_pci 0000:02:00.0: [08]: 0x4DE697AD 0x00400000 0x00000000 0x000A5C88 [ 1983.347879] ath10k_pci 0000:02:00.0: [12]: 0x00000009 0x00000000 0x0096C09C 0x0096C0A7 [ 1983.347880] ath10k_pci 0000:02:00.0: [16]: 0x0096BDBC 0x009287BD 0x00000000 0x009287BD [ 1983.347881] ath10k_pci 0000:02:00.0: [20]: 0x4092E4DC 0x0041A710 0x00000000 0x0F000000 [ 1983.347882] ath10k_pci 0000:02:00.0: [24]: 0x809432A7 0x0041A770 0x0040D400 0xC092E4DC [ 1983.347883] ath10k_pci 0000:02:00.0: [28]: 0x80942BC4 0x0041A790 0x4DE697AD 0x00400000 [ 1983.347885] ath10k_pci 0000:02:00.0: [32]: 0x80947BA7 0x0041A7B0 0x004050A8 0x0040E074 [ 1983.347886] ath10k_pci 0000:02:00.0: [36]: 0x809BDECC 0x0041A7D0 0x004050A8 0x0040E074 [ 1983.347887] ath10k_pci 0000:02:00.0: [40]: 0x8099638C 0x0041A7F0 0x004050A8 0x00000000 [ 1983.347888] ath10k_pci 0000:02:00.0: [44]: 0x80992076 0x0041A810 0x0044FD68 0x0046FFE8 [ 1983.347889] ath10k_pci 0000:02:00.0: [48]: 0x80996BD3 0x0041A830 0x0044FD68 0x00000000 [ 1983.347890] ath10k_pci 0000:02:00.0: [52]: 0x800B4405 0x0041A850 0x00422318 0x00005002 [ 1983.347891] ath10k_pci 0000:02:00.0: [56]: 0x809A6C34 0x0041A8E0 0x0042932C 0x0042CA20 [ 1983.347892] ath10k_pci 0000:02:00.0: Copy Engine register dump: [ 1983.347899] ath10k_pci 0000:02:00.0: [00]: 0x00034400 1 1 3 3 [ 1983.347913] ath10k_pci 0000:02:00.0: [01]: 0x00034800 20 20 151 152 [ 1983.347921] ath10k_pci 0000:02:00.0: [02]: 0x00034c00 47 47 46 47 [ 1983.347928] ath10k_pci 0000:02:00.0: [03]: 0x00035000 16 16 17 16 [ 1983.347936] ath10k_pci 0000:02:00.0: [04]: 0x00035400 1061 1061 84 20 [ 1983.347943] ath10k_pci 0000:02:00.0: [05]: 0x00035800 0 0 0 0 [ 1983.347950] ath10k_pci 0000:02:00.0: [06]: 0x00035c00 18 18 18 18 [ 1983.347960] ath10k_pci 0000:02:00.0: [07]: 0x00036000 1 1 1 1 [ 1983.347986] ath10k_pci 0000:02:00.0: could not suspend target (-108) [ 1983.440187] ath10k_pci 0000:02:00.0: cannot restart a device that hasn't been started Here are also the messages on modprobe ath10k_pci: [ 708.534013] ath10k_pci 0000:02:00.0: pci irq msi oper_irq_mode 2 irq_mode 0 reset_mode 0 [ 708.803707] ath10k_pci 0000:02:00.0: firmware: failed to load ath10k/pre-cal-pci-0000:02:00.0.bin (-2) [ 708.803714] ath10k_pci 0000:02:00.0: firmware: failed to load ath10k/cal-pci-0000:02:00.0.bin (-2) [ 708.803719] ath10k_pci 0000:02:00.0: firmware: failed to load ath10k/QCA6174/hw2.1/firmware-6.bin (-2) [ 708.803887] ath10k_pci 0000:02:00.0: firmware: direct-loading firmware ath10k/QCA6174/hw2.1/firmware-5.bin [ 708.803890] ath10k_pci 0000:02:00.0: qca6174 hw2.1 target 0x05010000 chip_id 0x003405ff sub 1a56:1525 [ 708.803891] ath10k_pci 0000:02:00.0: kconfig debug 0 debugfs 0 tracing 0 dfs 0 testmode 0 [ 708.804164] ath10k_pci 0000:02:00.0: firmware ver SW_RM.1.1.1-00157-QCARMSWPZ-1 api 5 features ignore-otp,no-4addr-pad crc32 10bf8e08 [ 708.865444] ath10k_pci 0000:02:00.0: firmware: direct-loading firmware ath10k/QCA6174/hw2.1/board-2.bin [ 708.865588] ath10k_pci 0000:02:00.0: board_file api 2 bmi_id N/A crc32 ae2e275a [ 710.036149] ath10k_pci 0000:02:00.0: htt-ver 3.1 wmi-op 4 htt-op 3 cal otp max-sta 32 raw 0 hwcrypto 1 I run Debian 10 (4.19.0-6 kernel) on a MSI GS60 6QE laptop. I've already installed lastest firmware from here: https://github.com/kvalo/ath10k-firmware/tree/master/. However hw2.1 hasn't been updated for a while, and I can't figure what makes hw2.1 firmware files loaded instead of hw3.0 ones. As a workaround, I've created scripts to rmmod ath10k_pci on hibernate and modprobe it on thaw. Other informations: lspci -k 02:00.0 Network controller: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter (rev 20) Subsystem: Bigfoot Networks, Inc. Killer N1525 Wireless-AC Kernel driver in use: ath10k_pci Kernel modules: ath10k_pci modinfo ath10k_pci filename: /lib/modules/4.19.0-6-amd64/kernel/drivers/net/wireless/ath/ath10k/ath10k_pci.ko firmware: ath10k/QCA9377/hw1.0/board.bin firmware: ath10k/QCA9377/hw1.0/firmware-5.bin firmware: ath10k/QCA9377/hw1.0/firmware-6.bin firmware: ath10k/QCA6174/hw3.0/board-2.bin firmware: ath10k/QCA6174/hw3.0/board.bin firmware: ath10k/QCA6174/hw3.0/firmware-6.bin firmware: ath10k/QCA6174/hw3.0/firmware-5.bin firmware: ath10k/QCA6174/hw3.0/firmware-4.bin firmware: ath10k/QCA6174/hw2.1/board-2.bin firmware: ath10k/QCA6174/hw2.1/board.bin firmware: ath10k/QCA6174/hw2.1/firmware-5.bin firmware: ath10k/QCA6174/hw2.1/firmware-4.bin firmware: ath10k/QCA9887/hw1.0/board-2.bin firmware: ath10k/QCA9887/hw1.0/board.bin firmware: ath10k/QCA9887/hw1.0/firmware-5.bin firmware: ath10k/QCA988X/hw2.0/board-2.bin firmware: ath10k/QCA988X/hw2.0/board.bin firmware: ath10k/QCA988X/hw2.0/firmware-5.bin firmware: ath10k/QCA988X/hw2.0/firmware-4.bin firmware: ath10k/QCA988X/hw2.0/firmware-3.bin firmware: ath10k/QCA988X/hw2.0/firmware-2.bin license: Dual BSD/GPL description: Driver support for Qualcomm Atheros 802.11ac WLAN PCIe/AHB devices author: Qualcomm Atheros alias: pci:v0000168Cd00000050sv*sd*bc*sc*i* alias: pci:v0000168Cd00000042sv*sd*bc*sc*i* alias: pci:v0000168Cd00000046sv*sd*bc*sc*i* alias: pci:v0000168Cd00000056sv*sd*bc*sc*i* alias: pci:v0000168Cd00000040sv*sd*bc*sc*i* alias: pci:v0000168Cd0000003Esv*sd*bc*sc*i* alias: pci:v0000168Cd00000041sv*sd*bc*sc*i* alias: pci:v0000168Cd0000003Csv*sd*bc*sc*i* alias: pci:v00000777d000011ACsv*sd*bc*sc*i* depends: ath10k_core retpoline: Y intree: Y name: ath10k_pci vermagic: 4.19.0-6-amd64 SMP mod_unload modversions sig_id: PKCS#7 signer: Debian Secure Boot CA sig_key: A7:46:8D:EF sig_hashalgo: sha256 signature: 96:8B:8B:91:CB:0A:DE:55:50:A8:CE:4B:78:0B:83:AD:FF:37:73:E8: 50:3B:04:95:CC:78:CC:B2:2B:30:DC:2B:F0:0B:2E:91:01:DD:2C:40: 8F:26:F2:20:59:54:28:D3:44:D8:0A:6F:EC:1A:B0:29:1D:06:90:E7: 16:54:8A:E9:08:07:03:AC:7B:6F:AB:61:E4:92:7E:60:B6:8C:1A:DB: F2:9A:41:75:88:6F:8A:6C:CC:AB:A0:9C:66:68:FC:75:FD:21:D7:2F: 2D:00:80:48:69:E6:D4:B0:1E:15:5B:DF:FF:6D:10:25:55:BD:40:47: D0:20:16:93:56:B9:71:E7:63:14:6D:E4:50:92:CB:64:F0:DF:7B:B7: 53:F2:BA:F7:B4:DA:2B:53:1F:F5:DB:55:80:43:B2:C0:9C:95:EC:C3: E0:31:62:9F:A5:C4:1B:08:3D:00:FE:F7:ED:BD:BE:56:3F:87:25:20: 8D:C0:38:47:EC:11:23:22:9F:0A:D9:20:7B:4C:C6:CC:04:0D:35:11: AE:A0:D8:A6:57:03:DC:7E:07:57:64:FE:60:1A:7E:60:4E:2C:B2:4E: 80:6D:F0:F3:17:4B:5D:B9:2E:F5:01:D5:E4:82:13:B7:9A:33:F0:0C: F7:ED:AE:7F:FF:F6:2F:DA:D2:36:76:F0:76:83:19:EE parm: irq_mode:0: auto, 1: legacy, 2: msi (default: 0) (uint) parm: reset_mode:0: auto, 1: warm only (default: 0) (uint)
