@mapengyu Unfortunately the fix didn't work. Just now, after 11 days of uptime and ~25 suspend-resume cycles, bluetooth (btintel) didn't wake up after suspend.
I am attaching kernel log of failed suspend-resume with the error msg: ``` Jul 29 14:11:44 hostanme kernel: Bluetooth: hci0: Reading Intel version command failed (-110) Jul 29 14:11:44 hostanme kernel: Bluetooth: hci0: command 0xfc05 tx timeout ``` It took a couple of attempts to get it working again with: ``` modprobe -r btusb modprobe -r btintel modprobe btintel modprobe btusb systemctl restart bluetooth ``` ``` Jul 29 14:31:38 hostanme kernel: usbcore: deregistering interface driver btusb Jul 29 14:31:51 hostanme kernel: usbcore: registered new interface driver btusb Jul 29 14:31:53 hostanme kernel: Bluetooth: hci0: Reading Intel version command failed (-110) Jul 29 14:31:53 hostanme kernel: Bluetooth: hci0: command 0xfc05 tx timeout Jul 29 14:33:05 hostanme kernel: usbcore: deregistering interface driver btusb Jul 29 14:33:24 hostanme kernel: usbcore: registered new interface driver btusb Jul 29 14:33:24 hostanme kernel: Bluetooth: hci0: Bootloader revision 0.3 build 0 week 24 2017 Jul 29 14:33:24 hostanme kernel: Bluetooth: hci0: Device revision is 1 Jul 29 14:33:24 hostanme kernel: Bluetooth: hci0: Secure boot is enabled Jul 29 14:33:24 hostanme kernel: Bluetooth: hci0: OTP lock is enabled Jul 29 14:33:24 hostanme kernel: Bluetooth: hci0: API lock is enabled Jul 29 14:33:24 hostanme kernel: Bluetooth: hci0: Debug lock is disabled Jul 29 14:33:24 hostanme kernel: Bluetooth: hci0: Minimum firmware build 1 week 10 2014 Jul 29 14:33:24 hostanme kernel: Bluetooth: hci0: Found device firmware: intel/ibt-20-1-3.sfi Jul 29 14:33:24 hostanme kernel: Bluetooth: hci0: Boot Address: 0x24800 Jul 29 14:33:24 hostanme kernel: Bluetooth: hci0: Firmware Version: 255-255.255 Jul 29 14:33:27 hostanme kernel: Bluetooth: hci0: Waiting for firmware download to complete Jul 29 14:33:27 hostanme kernel: Bluetooth: hci0: Firmware loaded in 2188594 usecs Jul 29 14:33:27 hostanme kernel: Bluetooth: hci0: Waiting for device to boot Jul 29 14:33:27 hostanme kernel: Bluetooth: hci0: Device booted in 14594 usecs Jul 29 14:33:27 hostanme kernel: Bluetooth: hci0: Malformed MSFT vendor event: 0x02 Jul 29 14:33:27 hostanme kernel: Bluetooth: hci0: Found Intel DDC parameters: intel/ibt-20-1-3.ddc Jul 29 14:33:27 hostanme kernel: Bluetooth: hci0: Applying Intel DDC parameters completed Jul 29 14:33:27 hostanme kernel: Bluetooth: hci0: Firmware revision 0.3 build 249 week 27 2023 Jul 29 14:33:27 hostanme kernel: Bluetooth: hci0: HCI LE Coded PHY feature bit is set, but its usage is not supported. Jul 29 14:33:27 hostanme kernel: Bluetooth: MGMT ver 1.22 ``` ** Attachment added: "kernel log of failed suspend-resume" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2073047/+attachment/5801259/+files/kern-suspend-resume.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2073047 Title: Regression on Linux 6.8.0-38: Bluetooth adapter (Intel AX200) stops working after a few suspend/resume cycles Status in linux package in Ubuntu: Triaged Bug description: After upgrading to Linux 6.8.0-38, Bluetooth adapter (USB part of the Intel AX200) stops working after a few suspend/resume cycles. WiFi (PCIe part) continues to work as expected. Kernel log shows: Bluetooth: hci0: Reading Intel version command failed (-110) instead of the usual: Bluetooth: hci0: Bootloader revision 0.3 build 0 week 24 2017 Bluetooth: hci0: Device revision is 1 Bluetooth: hci0: Secure boot is enabled Bluetooth: hci0: OTP lock is enabled Bluetooth: hci0: API lock is enabled Bluetooth: hci0: Debug lock is disabled Bluetooth: hci0: Minimum firmware build 1 week 10 2014 Bluetooth: hci0: Found device firmware: intel/ibt-20-1-3.sfi Bluetooth: hci0: Boot Address: 0x24800 Bluetooth: hci0: Firmware Version: 255-255.255 Bluetooth: hci0: Waiting for firmware download to complete Bluetooth: hci0: Firmware loaded in 2111457 usecs Bluetooth: hci0: Waiting for device to boot Bluetooth: hci0: Device booted in 14560 usecs Bluetooth: hci0: Malformed MSFT vendor event: 0x02 Bluetooth: hci0: Found Intel DDC parameters: intel/ibt-20-1-3.ddc Bluetooth: hci0: Applying Intel DDC parameters completed Bluetooth: hci0: Firmware revision 0.3 build 249 week 27 2023 Bluetooth: hci0: HCI LE Coded PHY feature bit is set, but its usage is not supported. Bluetooth: MGMT ver 1.22 First appeared on 6.8.0-38, 6.8.0-36 and earlier worked without issues. I suspect linux-firmware might be missing updates corresponding to changes in the kernel driver or a regression was introduced in the update. Machine: Dell XPS13-9350 Device: Intel AX200 Rev 1a (WiFi/Bluetooth combo) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2073047/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
