Module is loaded but not working on 5.4.70 (but working on 5.4.3)

[jze1]

Oct 22 20:37:58 jz-MacBookPro kernel: [ 1173.533010] facetimehd 0000:02:00.0: Found FaceTime HD camera with device id: 1570 Oct 22 20:37:58 jz-MacBookPro kernel: [ 1173.533428] facetimehd 0000:02:00.0: Setting 64bit DMA mask Oct 22 20:37:58 jz-MacBookPro kernel: [ 1173.540421] facetimehd 0000:02:00.0: S2 PCIe link init succeeded Oct 22 20:37:58 jz-MacBookPro kernel: [ 1173.540449] facetimehd 0000:02:00.0: Refclk: 25MHz (0xa) Oct 22 20:37:58 jz-MacBookPro kernel: [ 1173.550394] facetimehd 0000:02:00.0: PLL reset finished Oct 22 20:37:58 jz-MacBookPro kernel: [ 1173.550396] facetimehd 0000:02:00.0: Waiting for S2 PLL to lock at 450 MHz Oct 22 20:37:58 jz-MacBookPro kernel: [ 1173.550407] facetimehd 0000:02:00.0: S2 PLL is locked after 10 us Oct 22 20:37:58 jz-MacBookPro kernel: [ 1173.560362] facetimehd 0000:02:00.0: S2 PLL is in bypass mode Oct 22 20:37:58 jz-MacBookPro kernel: [ 1173.580279] facetimehd 0000:02:00.0: DDR40 PHY PLL locked on safe settings Oct 22 20:37:58 jz-MacBookPro kernel: [ 1173.580293] facetimehd 0000:02:00.0: STRAP valid Oct 22 20:37:58 jz-MacBookPro kernel: [ 1173.580294] facetimehd 0000:02:00.0: Configuring DDR PLLs for 450 MHz Oct 22 20:37:58 jz-MacBookPro kernel: [ 1173.580301] facetimehd 0000:02:00.0: DDR40 PLL is locked after 0 us Oct 22 20:37:58 jz-MacBookPro kernel: [ 1173.580309] facetimehd 0000:02:00.0: First DDR40 VDL calibration completed after 2 us Oct 22 20:37:58 jz-MacBookPro kernel: [ 1173.580319] facetimehd 0000:02:00.0: Second DDR40 VDL calibration completed after 2 us Oct 22 20:37:58 jz-MacBookPro kernel: [ 1173.580320] facetimehd 0000:02:00.0: Using step size 152 Oct 22 20:37:58 jz-MacBookPro kernel: [ 1173.580325] facetimehd 0000:02:00.0: VDL set to: coarse=0x10008, fine=0x1011b Oct 22 20:37:58 jz-MacBookPro kernel: [ 1173.580329] facetimehd 0000:02:00.0: Virtual VTT enabled Oct 22 20:37:58 jz-MacBookPro kernel: [ 1173.600725] facetimehd 0000:02:00.0: S2 DRAM memory address: 0x22159559 Oct 22 20:37:58 jz-MacBookPro kernel: [ 1173.600738] facetimehd 0000:02:00.0: Rewrite DDR mode registers succeeded Oct 22 20:37:58 jz-MacBookPro kernel: [ 1173.600932] facetimehd 0000:02:00.0: Full memory verification succeeded! (0) Oct 22 20:37:58 jz-MacBookPro kernel: [ 1173.715868] facetimehd 0000:02:00.0: Loaded firmware, size: 1392kb Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.874017] facetimehd 0000:02:00.0: ISP woke up after 0ms Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.874022] facetimehd 0000:02:00.0: Number of IPC channels: 7, queue size: 44865 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.874046] facetimehd 0000:02:00.0: Firmware requested heap size: 3072kb Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.884025] facetimehd 0000:02:00.0: ISP second int after 0ms Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.884027] facetimehd 0000:02:00.0: Channel description table at 00800000 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.894209] facetimehd 0000:02:00.0: magic value: 00000000 after 0 ms Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.894210] facetimehd 0000:02:00.0: Enabling interrupts Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.894457] FWMSG: Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.894489] FWMSG: - APOLLO-ISP-APPLE ------------------------------------------------------------ Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.894498] FWMSG: Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.894512] FWMSG: Restart count : 0 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.894539] FWMSG: Platform : mode = TARGET, ID = 0x00000000, HW = 00020018.00000000 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.894557] FWMSG: System Clock : 200000000 Hz Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.894574] FWMSG: Processor mode : SUPERVISOR Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.894594] FWMSG: Cache architecture type : SEPARATE Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.894610] FWMSG: Cache type : WRITEBACK Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.894650] FWMSG: Data Cache Line : 32 [0x20] Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.894667] FWMSG: Boot arguments entries : 2 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.894764] FWMSG: 0000: 0x00000000 0x00000000 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.894789] FWMSG: Physical memory base : 0x00000000 [TLB base 0x00160000] Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.894808] FWMSG: Main memory : base : 0x00000000 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.894833] FWMSG: size : 8388608 [0x00800000] [8.0 MB] Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.894858] FWMSG: Extra heap : base : 0x2080b000 [phy = 0x0080b000] Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.894884] FWMSG: size : 3145728 [0x00300000] [3.0 MB] Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.894907] FWMSG: Shared window : base : 0x00800000 [static wiring] Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.895034] FWMSG: size : 125829120 [0x07800000] [120.0 MB] Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.895052] FWMSG: Shared memory : base : 0x00800000 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.895079] FWMSG: size : 260046848 [0x0f800000] [248.0 MB] Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.895108] FWMSG: TEXT : 1421992 [0x15b2a8] - text 667256, cstring 38749, const 715528 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.895268] FWMSG: DATA : 8076 [0x1f8c] - data 0, bss 460, common 1452, noinit 6144 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.895289] FWMSG: Heap free space : 10002626 [0x0098a0c2] Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.895309] FWMSG: Heap allocated space : 94656 [0x000171c0] Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.895336] FWMSG: Disclaimer : Copyright (c) APPLE Inc. All Rights Reserved. Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.895353] FWMSG: Application : adc [release] Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.895373] FWMSG: Linked on : Jul 25 2015 - 08:48:55 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.895390] FWMSG: Release : S2ISP-01.43.00 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.895405] FWMSG: H4ISPAPPLE : 11536 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.895419] FWMSG: H4ISPCD : 4081 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.895432] FWMSG: ffw : 4143 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.895455] FWMSG: Tool-chain : iPhone OS - 7.0.3 [clang/clang++] Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.895465] FWMSG: Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.895496] FWMSG: ------------------------------------------------------------------------------- Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.895505] FWMSG: Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.964732] FWMSG: [ISP] CMD = 0x0004 [CISP_CMD_PRINT_ENABLE] Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.964974] FWMSG: [ISP] CMD = 0x0003 [CISP_CMD_CONFIG_GET] Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965247] FWMSG: [ISP] CH = 0 CMD = 0x010d [CISP_CMD_CH_INFO_GET] Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965408] facetimehd 0000:02:00.0: Direct firmware load for facetimehd/1871_01XX.dat failed with error -2 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965440] ------------[ cut here ]------------ Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965449] WARNING: CPU: 2 PID: 4519 at drivers/media/v4l2-core/v4l2-dev.c:863 video_register_device+0x39e/0x600 [videodev] Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965449] Modules linked in: facetimehd(OE+) rfcomm vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) overlay cmac bnep binfmt_misc intel_rapl_msr nls_iso8859_1 joydev mei_hdcp snd_hda_codec_cirrus snd_hda_codec_generic btusb ledtrig_audio btrtl btbcm snd_hda_codec_hdmi btintel bluetooth snd_hda_intel snd_intel_nhlt snd_hda_codec ecdh_generic ecc snd_hda_core snd_hwdep snd_pcm applesmc input_polldev intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp snd_seq_midi snd_seq_midi_event snd_rawmidi kvm_intel input_leds bcm5974 kvm rapl intel_cstate snd_seq intel_pch_thermal brcmfmac sch_fq_codel snd_seq_device snd_timer brcmutil cuse cfg80211 snd lpc_ich soundcore mei_me mei spi_pxa2xx_pci dw_dmac_pci sbs applespi sbshc spi_pxa2xx_platform acpi_als dw_dmac dw_dmac_core kfifo_buf industrialio mac_hid apple_bl videobuf2_dma_sg videobuf2_memops videobuf2_v4l2 videobuf2_common videodev mc parport_pc ppdev lp parport sunrpc ip_tables x_tables autofs4 algif_skcipher af_alg dm_crypt hid_apple Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965473] hid_generic usbhid hid uas usb_storage i915 crct10dif_pclmul crc32_pclmul i2c_algo_bit ghash_clmulni_intel drm_kms_helper ahci aesni_intel syscopyarea sysfillrect crypto_simd sysimgblt fb_sys_fops cryptd glue_helper libahci thunderbolt drm video [last unloaded: facetimehd] Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965482] CPU: 2 PID: 4519 Comm: modprobe Tainted: G W OE 5.4.70-050470-generic #202010070732 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965483] Hardware name: Apple Inc. MacBookPro12,1/Mac-E43C1C25D4880AD6, BIOS 180.0.0.0.0 09/17/2018 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965487] RIP: 0010:__video_register_device+0x39e/0x600 [videodev] Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965488] Code: 0f 84 d6 01 00 00 41 8b 57 2c 85 d2 0f 85 a5 01 00 00 f0 41 80 8f e8 04 00 00 01 31 db 89 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <0f> 0b bb ea ff ff ff 89 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 83 f8 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965489] RSP: 0018:ffffbbae02a2b9b8 EFLAGS: 00010246 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965490] RAX: ffff9530b5ad4010 RBX: ffffffffc0cd9800 RCX: 0000000000000000 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965491] RDX: 00000000ffffffff RSI: 0000000000000000 RDI: ffff9530e6efc000 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965492] RBP: ffffbbae02a2b9e0 R08: ffffffffc0cd9800 R09: ffff95315cc036c0 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965492] R10: 000000000098090c R11: 0000000000000000 R12: 0000000000000001 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965493] R13: 00000000ffffffff R14: ffff9530b5ad4db0 R15: ffff9530e6efc000 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965494] FS: 00007f04c6665540(0000) GS:ffff95315eb00000(0000) knlGS:0000000000000000 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965495] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965495] CR2: 00007ffd25ac9ff8 CR3: 00000003cdc44004 CR4: 00000000003606e0 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965496] Call Trace: Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965503] fthd_v4l2_register+0x263/0x300 [facetimehd] Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965507] fthd_pci_probe+0x526/0x600 [facetimehd] Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965510] local_pci_probe+0x48/0x80 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965512] pci_device_probe+0x10f/0x1b0 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965515] really_probe+0x159/0x3e0 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965516] driver_probe_device+0xbc/0x100 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965518] device_driver_attach+0x5d/0x70 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965519] driver_attach+0x8f/0x150 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965520] ? device_driver_attach+0x70/0x70 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965521] bus_for_each_dev+0x7e/0xc0 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965523] driver_attach+0x1e/0x20 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965524] bus_add_driver+0x152/0x1f0 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965526] driver_register+0x74/0xd0 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965527] ? 0xffffffffc0cdf000 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965528] pci_register_driver+0x57/0x60 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965531] fthd_pci_driver_init+0x23/0x1000 [facetimehd] Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965534] do_one_initcall+0x4a/0x1fa Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965536] ? _cond_resched+0x19/0x30 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965538] ? kmem_cache_alloc_trace+0x16c/0x240 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965541] do_init_module+0x62/0x250 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965542] load_module+0x10b8/0x1200 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965545] __do_sys_finit_module+0xbe/0x120 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965546] ? do_sys_finit_module+0xbe/0x120 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965549] __x64_sys_finit_module+0x1a/0x20 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965551] do_syscall_64+0x57/0x190 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965552] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965553] RIP: 0033:0x7f04c619c639 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965555] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 1f f8 2c 00 f7 d8 64 89 01 48 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965555] RSP: 002b:00007ffd25acd208 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965556] RAX: ffffffffffffffda RBX: 000055ff0bd0dd60 RCX: 00007f04c619c639 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965557] RDX: 0000000000000000 RSI: 000055ff0aff4cee RDI: 0000000000000003 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965557] RBP: 000055ff0aff4cee R08: 0000000000000000 R09: 0000000000000000 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965558] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965558] R13: 000055ff0bd0ded0 R14: 0000000000040000 R15: 000055ff0bd0dd60 Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965560] ---[ end trace 2d5fc039f0775701 ]--- Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.965716] FWMSG: [ISP] CMD = 0x0001 [CISP_CMD_STOP] Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.975760] facetimehd 0000:02:00.0: fthd_hw_deinit Oct 22 20:37:59 jz-MacBookPro kernel: [ 1173.975965] facetimehd: probe of 0000:02:00.0 failed with error -22

[serokellcao]

Can confirm that it doesn't work on 5.8.0 either.

[Diadochokinetic]

Doesn't work on 5.4.0-58-generic either.

[patjak]

Do you all get the same warning?

[alexshpilkin]

I’m on MBP 11,1 using kernel 5.9.14.arch1-1 and the firmware appears to be loading successfully using the latest git (and the camera subsequently works across qv4l2, Cheese, Chromium, and Skype for Linux); the messages are almost identical to the ones in the bug report up to Direct firmware load failed ... (I have FWMSG: [ISP] CH = 0 CMD = 0x0111 [CISP_CMD_CH_SET_FILE_LOAD] instead, and Using step size 156 instead of Using step size 152 before that). So it might potentially be a distro thing, given the wide range of kernel versions reported here. (I can try building and booting an older kernel if necessary.)

[patjak]

I just tried it on opensuse tumbleweed with 5.9 kernel. Everything works as expected. Any other information you can provide that might help pinpoint the problem?

@alexshpilkin yes please try 5.8.0 as reported by @serokellcao

[jze1]

I tried 5.9.12 mainline kernel for ubuntu, but since I am using it normally connected to thunderbolt monitor with keyboard and mouse attached to the monitor, it is not usable for me as it seems like the keyboard and mouse data are transferred with a telegraph speed (big cursor lag and keyboard misses some keystrokes).

But with 5.4.70 it at least recognises the facetime camera in the thunderbolt monitor.

[patjak]

@jze1 sounds like this is a problem with Thunderbolt and not the facetimehd driver. What does lspci -vvv -d 14e4:1570 say about the device with the non-working kernel?

[jze1]

02:00.0 Multimedia controller: Broadcom Inc. and subsidiaries 720p FaceTime HD Camera Subsystem: Broadcom Inc. and subsidiaries 720p FaceTime HD Camera Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin A routed to IRQ 17 Region 0: Memory at c1700000 (64-bit, non-prefetchable) [size=64K] Region 2: Memory at a0000000 (64-bit, prefetchable) [size=256M] Region 4: Memory at c1600000 (64-bit, non-prefetchable) [size=1M] Capabilities: [48] Power Management version 3 Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold-) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=2 PME- Capabilities: [58] MSI: Enable- Count=1/1 Maskable- 64bit+ Address: 0000000000000000 Data: 0000 Capabilities: [68] Vendor Specific Information: Len=44 <?> Capabilities: [ac] Express (v2) Endpoint, MSI 00 DevCap: MaxPayload 512 bytes, PhantFunc 0, Latency L0s <4us, L1 unlimited ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset- SlotPowerLimit 10.000W DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd+ ExtTag- PhantFunc- AuxPwr+ NoSnoop+ MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr- TransPend- LnkCap: Port #0, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <2us, L1 <32us ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+ LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR+, OBFF Via WAKE# DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR+, OBFF Disabled LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- Capabilities: [100 v1] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol- CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr- CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+ AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn- Capabilities: [13c v1] Device Serial Number 00-00-00-ff-ff-00-00-00 Capabilities: [150 v1] Power Budgeting <?> Capabilities: [160 v1] Virtual Channel Caps: LPEVC=0 RefClk=100ns PATEntryBits=1 Arb: Fixed- WRR32- WRR64- WRR128- Ctrl: ArbSelect=Fixed Status: InProgress- VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans- Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256- Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=ff Status: NegoPending- InProgress- Capabilities: [1b0 v1] Latency Tolerance Reporting Max snoop latency: 3145728ns Max no snoop latency: 3145728ns Capabilities: [220 v1] #15 Kernel modules: bdc_pci

[patjak]

I can see you have the bdc_pci module loaded for the device. This is incorrect. Run modprobe -r bdc_pciand then modprobe facetimehd to reload the facetimehd driver

[Diadochokinetic]

Hi,

I tried to unload bdc_pci and load facetimehd and ran into the following problems:

After running modprobe -r bdc_pci, I checked with cat /proc/modules | grep bdc and the module was not listed. But when running lspci -vvv -d 14e4:1570 the kernel module was still bdc_pci. After rebooting the machine facetimehd was not loaded and bdc_pci was loaded. Is there anything else I should try?

[Diadochokinetic]

Hello again,

I think I have located the problem. After updating the "blacklist bdc_pci" entry from /etc/modprobe.d/dkms.conf was missing. This leads to bdc_pci being loaded at reboot, preventing the facetimehd module from working.

[jze1]

lsmod does not show bdc_pci. So I guess it is built-in in this version of kernel. Will check how to disable it......

[Diadochokinetic]

I've just updated from 5.4.0-58-generic to 5.4.0-59-generic and had no issues. The camera is working, bdc_pci is blacklisted and the facetimehd module is loaded.

[patjak]

Great. I have a patch going into the stable kernels that finally completely disables bdc_pci so no blacklisting will be necessary when this hits peoples distros.