Hi everyone, I am experiencing reproducible black screens after standby on a desktop PC since several months. The only way out is to hard reset the system. The problem appeared after kernel updates. At first, I wrongly assumed that the issue was in the AMD subsystem (https://gitlab.freedesktop.org/drm/amd/-/issues/3580) But after a "git bisect", I found out that the issue is triggered by the following commit: Author: Chris Lu <chris.lu@xxxxxxxxxxxx> Date: Thu Jul 4 14:01:13 2024 +0800 Bluetooth: btmtk: move btusb_mtk_hci_wmt_sync to btmtk.c Move btusb_mtk_hci_wmt_sync from btusb.c to btmtk.c which holds vendor specific stuff and would make btusb.c clean. Add usb.h header to btmtksdio.c/btmtkuart.c for usb related element defined in btmtk.h Signed-off-by: Sean Wang <sean.wang@xxxxxxxxxxxx> Signed-off-by: Chris Lu <chris.lu@xxxxxxxxxxxx> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx> I find it surprising, because this change looks like a refactoring. But I have indeed a BT adapter from Mediatek: $ inxi -Eaz Bluetooth: Device-1: MediaTek Wireless_Device driver: btusb v: 0.8 type: USB rev: 2.1 speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 1-7:8 chip-ID: 0e8d:0616 class-ID: e001 serial: <filter> Report: rfkill ID: hci0 rfk-id: 2 state: up address: see --recommends I have also noticed some Oops in the system log, but I don’t know if they are related: Jan 02 06:51:53 kernel: Bluetooth: hci0: HW/SW Version: 0x008a008a, Build Time: 20241106163512 Jan 02 06:51:53 kernel: BUG: kernel NULL pointer dereference, address: 0000000000000209 Jan 02 06:51:53 kernel: #PF: supervisor read access in kernel mode Jan 02 06:51:53 kernel: #PF: error_code(0x0000) - not-present page Jan 02 06:51:53 kernel: PGD 0 P4D 0 Jan 02 06:51:53 kernel: Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI Jan 02 06:51:53 kernel: CPU: 11 PID: 252 Comm: kworker/u99:0 Tainted: G W 6.10.0-rc7-MANJARO+ #24 0fce326ab6f7abf1b1427ec9bb2e550935eaff74 Jan 02 06:51:53 kernel: Hardware name: Micro-Star International Co., Ltd. MS-7D76/MAG B650M MORTAR WIFI (MS-7D76), BIOS A.H0 07/25/2024 Jan 02 06:51:53 kernel: Workqueue: hci0 hci_power_on [bluetooth] Jan 02 06:51:53 kernel: RIP: 0010:__pm_runtime_resume+0x19/0x80 Jan 02 06:51:53 kernel: Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 41 55 41 54 55 89 f5 83 e6 01 53 48 89 fb 75 09 <f6> 87 b9 01 00 00 04 74 43 40 f6 c5 04 74 07 f0 ff 83 b0 01 00 00 Jan 02 06:51:53 kernel: RSP: 0018:ffffbafc80bebbf0 EFLAGS: 00010246 Jan 02 06:51:53 kernel: RAX: ffff93f1e6b74005 RBX: 0000000000000050 RCX: 0000000000000000 Jan 02 06:51:53 kernel: RDX: 0000000000000035 RSI: 0000000000000000 RDI: 0000000000000050 Jan 02 06:51:53 kernel: RBP: 0000000000000004 R08: 0000000000000000 R09: ffff93f1e6b74000 Jan 02 06:51:53 kernel: R10: ffffbafc80bebc28 R11: 0000000000000003 R12: 0000000000000035 Jan 02 06:51:53 kernel: R13: ffffbafc80bebc88 R14: 000000000000003a R15: ffff93f1d733d468 Jan 02 06:51:53 kernel: FS: 0000000000000000(0000) GS:ffff93f8be380000(0000) knlGS:0000000000000000 Jan 02 06:51:53 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jan 02 06:51:53 kernel: CR2: 0000000000000209 CR3: 000000011cb38000 CR4: 0000000000f50ef0 Jan 02 06:51:53 kernel: PKRU: 55555554 Jan 02 06:51:53 kernel: Call Trace: Jan 02 06:51:53 kernel: <TASK> Jan 02 06:51:53 kernel: ? __die_body.cold+0x19/0x27 Jan 02 06:51:53 kernel: ? page_fault_oops+0x15a/0x2d0 Jan 02 06:51:53 kernel: ? exc_page_fault+0x7e/0x180 Jan 02 06:51:53 kernel: ? asm_exc_page_fault+0x26/0x30 Jan 02 06:51:53 kernel: ? __pm_runtime_resume+0x19/0x80 Jan 02 06:51:53 kernel: usb_autopm_get_interface+0x1b/0x50 Jan 02 06:51:53 kernel: btmtk_usb_hci_wmt_sync+0x9f/0x420 [btmtk fa79ad7fd7fb66d07fc217cb4ff72c4bf8aee393] Jan 02 06:51:53 kernel: ? __pfx_btmtk_usb_hci_wmt_sync+0x10/0x10 [btmtk fa79ad7fd7fb66d07fc217cb4ff72c4bf8aee393] Jan 02 06:51:53 kernel: btmtk_setup_firmware_79xx+0x19d/0x310 [btmtk fa79ad7fd7fb66d07fc217cb4ff72c4bf8aee393] Jan 02 06:51:53 kernel: btusb_mtk_setup+0x1bf/0x5c0 [btusb b9af32c76c9c6213ec8e1d819803a203230d3bb2] Jan 02 06:51:53 kernel: hci_dev_open_sync+0x102/0xb80 [bluetooth 298a305cf3cb3f35d2593edb9982f2d8837c12b0] Jan 02 06:51:53 kernel: ? srso_alias_return_thunk+0x5/0xfbef5 Jan 02 06:51:53 kernel: ? try_to_wake_up+0x22f/0x660 Jan 02 06:51:53 kernel: hci_dev_do_open+0x23/0x60 [bluetooth 298a305cf3cb3f35d2593edb9982f2d8837c12b0] Jan 02 06:51:53 kernel: hci_power_on+0x4f/0x260 [bluetooth 298a305cf3cb3f35d2593edb9982f2d8837c12b0] Jan 02 06:51:53 kernel: process_one_work+0x17b/0x330 Jan 02 06:51:53 kernel: worker_thread+0x2e2/0x410 Jan 02 06:51:53 kernel: ? __pfx_worker_thread+0x10/0x10 Jan 02 06:51:53 kernel: kthread+0xcf/0x100 Jan 02 06:51:53 kernel: ? __pfx_kthread+0x10/0x10 Jan 02 06:51:53 kernel: ret_from_fork+0x31/0x50 Jan 02 06:51:53 kernel: ? __pfx_kthread+0x10/0x10 Jan 02 06:51:53 kernel: ret_from_fork_asm+0x1a/0x30 Jan 02 06:51:53 kernel: </TASK> Jan 02 06:51:53 kernel: Modules linked in: intel_rapl_msr(+) intel_rapl_common mt7921e mt7921_common mt792x_lib mt76_connac_lib mt76 btusb snd_hda_codec_hdmi btrtl btintel snd_hda_intel btbcm mac80211 kvm_amd btmtk snd_intel_dspcfg libarc4 snd_intel_sdw_acpi bluetooth snd_usb> Jan 02 06:51:53 kernel: cryptd xhci_pci video xhci_pci_renesas wmi Jan 02 06:51:53 kernel: CR2: 0000000000000209 Jan 02 06:51:53 kernel: ---[ end trace 0000000000000000 ]--- Jan 02 06:51:53 kernel: RIP: 0010:__pm_runtime_resume+0x19/0x80 Jan 02 06:51:53 kernel: Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 41 55 41 54 55 89 f5 83 e6 01 53 48 89 fb 75 09 <f6> 87 b9 01 00 00 04 74 43 40 f6 c5 04 74 07 f0 ff 83 b0 01 00 00 Jan 02 06:51:53 kernel: RSP: 0018:ffffbafc80bebbf0 EFLAGS: 00010246 Jan 02 06:51:53 kernel: RAX: ffff93f1e6b74005 RBX: 0000000000000050 RCX: 0000000000000000 Jan 02 06:51:53 kernel: RDX: 0000000000000035 RSI: 0000000000000000 RDI: 0000000000000050 Jan 02 06:51:53 kernel: RBP: 0000000000000004 R08: 0000000000000000 R09: ffff93f1e6b74000 Jan 02 06:51:53 kernel: R10: ffffbafc80bebc28 R11: 0000000000000003 R12: 0000000000000035 Jan 02 06:51:53 kernel: R13: ffffbafc80bebc88 R14: 000000000000003a R15: ffff93f1d733d468 Jan 02 06:51:53 kernel: FS: 0000000000000000(0000) GS:ffff93f8be380000(0000) knlGS:0000000000000000 Jan 02 06:51:53 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jan 02 06:51:53 kernel: CR2: 0000000000000209 CR3: 000000011cb38000 CR4: 0000000000f50ef0 Jan 02 06:51:53 kernel: PKRU: 55555554 Does that make sense to anyone? I can provide more information if required. In the meantime I use older versions of the kernel, but with time this becomes a bigger problem. Cheers Olivier
