Bug#1133685: Intel AX200 Bluetooth non-functional on 5.10.0-39, regression from 5.10.0-38

From	JMCoates <JM.Coates@protonmail.com>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#1133685: Intel AX200 Bluetooth non-functional on 5.10.0-39, regression from 5.10.0-38
Date	2026-04-22 22:00 +0200
Message-ID	<MMLTP-hcHi-5@gated-at.bofh.it> (permalink)
References	<MJsE1-eS58-1@gated-at.bofh.it> <MKb85-fmSC-1@gated-at.bofh.it> <MKcnv-fnGn-1@gated-at.bofh.it> <MJsE1-eS58-1@gated-at.bofh.it> <MKcnv-fnGn-1@gated-at.bofh.it>
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This issue has been resolved elsewhere and can be closed out.

Thank you.



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On Wednesday, April 15th, 2026 at 11:29, JMCoates <JM.Coates@protonmail.com> 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 <ukleinek@debian.org> 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
> >

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Bug#1133685: Intel AX200 Bluetooth non-functional on 5.10.0-39, regression from 5.10.0-38 JMCoates <JM.Coates@protonmail.com> - 2026-04-13 18:50 +0200
  Bug#1133685: Intel AX200 Bluetooth non-functional on 5.10.0-39, regression from 5.10.0-38 Uwe Kleine-König <ukleinek@debian.org> - 2026-04-15 18:20 +0200
  Processed: Re: Bug#1133685: Intel AX200 Bluetooth non-functional  on 5.10.0-39, regression from 5.10.0-38 "Debian Bug Tracking System" <owner@bugs.debian.org> - 2026-04-15 18:20 +0200
  Bug#1133685: Intel AX200 Bluetooth non-functional on 5.10.0-39, regression from 5.10.0-38 JMCoates <JM.Coates@protonmail.com> - 2026-04-22 22:00 +0200

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