This issue has been resolved elsewhere and can be closed out. Thank you.
Sent with Proton Mail secure email. On Wednesday, April 15th, 2026 at 11:29, JMCoates <[email protected]> wrote: > Hello and thanks for responding, > > I am unable to boot into 5.10.0-38 on this system. GRUB appears to be > overridden by something at the firmware or bootloader level - > grub-set-default, grub-reboot, and manual grub.cfg configuration all fail to > change the boot target. Both kernels are installed. I can only provide logs > from 5.10.0-39. > > Attached are the logs for 5.10.0-39. If the logs for 5.10.0-38 are critical > I can try entirely reverting back to that build. > > > > Sent with Proton Mail secure email. > > On Wednesday, April 15th, 2026 at 10:13, Uwe Kleine-König > <[email protected]> wrote: > > > Control: tag -1 + moreinfo > > > > Hello, > > > > On Mon, Apr 13, 2026 at 04:43:59PM +0000, JMCoates wrote: > > > Package: linux > > > Version: 5.10.251-1 > > > Severity: important > > > > > > Intel Wi-Fi 6 AX200 Bluetooth stopped functioning after upgrading from > > > kernel 5.10.0-38-amd64 (5.10.249-1) to 5.10.0-39-amd64 (5.10.251-1). > > > WiFi on the same card continues to work normally. > > > > > > Symptoms: > > > - GNOME Bluetooth settings reports "No Bluetooth found" > > > - hciconfig -a and hcitool dev return no devices > > > - /sys/class/bluetooth does not exist at boot > > > - bluetooth.service skips repeatedly due to missing > > > ConditionPathIsDirectory > > > - btintel module is present but does not bind to the device > > > > > > dmesg shows WiFi firmware loads normally but no BT firmware load attempt > > > appears anywhere in the log. On a working system a separate > > > btintel/iwlwifi > > > line loading BT firmware would be expected alongside the wifi firmware > > > load. > > > > > > Hardware: > > > - Intel Wi-Fi 6 AX200 160MHz, PCIe, 0000:01:00.0, REV=0x340 > > > - Firmware: iwlwifi-cc-a0-59.ucode, version 59.601f3a66.0 > > > > > > Kernel versions: > > > - 5.10.0-38-amd64 (5.10.249-1): Bluetooth working prior to upgrade > > > - 5.10.0-39-amd64 (5.10.251-1): Bluetooth broken > > > > > > Regression timing confirmed via /var/log/dpkg.log showing kernel > > > upgradeoccurred April 12 2026. > > > > Can you please provide boot logs for both 5.10.0-38-amd64 and > > 5.10.0-39-amd64? > > > > Best regards > > Uwe > >
