Public bug reported:
A bluetooth driver is missing for mediatek mt7927, the fix is throwing a
mt6639 driver into the mt7927 folder via bare bash terminal on grub,
before doing this my mouse was not working and caused the screen to
reset back to the login screen.
dsmeg | grep command allowed me to find the error and fix it.
Before this, it stated an error saying the file was not found:
bluetooth:hci0: failed to load firmware file (-2)
bluetooth:hci0:failed to set up firmware (-2)
Before this version the problem did not exist. (Previously on 26.04, now
on development 26.10 and reporting this missing driver/firmware)
ProblemType: Bug
DistroRelease: Ubuntu 26.10
Package: bluetooth (not installed)
ProcVersionSignature: Ubuntu 7.1.0-5.5-generic 7.1.0
Uname: Linux 7.1.0-5-generic x86_64
ApportVersion: 2.35.0-0ubuntu1
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Fri Jul 31 17:45:09 2026
InstallationDate: Installed on 2026-07-11 (21 days ago)
InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1)
InterestingModules: bnep btusb bluetooth
MachineType: ASUS System Product Name
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
XDG_RUNTIME_DIR=<set>
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.1.0-5-generic
root=UUID=3d9e14e3-8242-4cc3-9b1a-c7d677bf9402 ro quiet splash
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
SourcePackage: bluez
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/24/2026
dmi.bios.release: 24.1
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2401
dmi.board.asset.tag: Default string
dmi.board.name: ROG STRIX X870E-E GAMING WIFI
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr2401:bd06/24/2026:br24.1:svnASUS:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnROGSTRIXX870E-EGAMINGWIFI:rvrRev1.xx:cvnDefaultstring:ct3:cvrDefaultstring:skuSKU:pfaTobefilledbyO.E.M.:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.sku: SKU
dmi.product.version: System Version
dmi.sys.vendor: ASUS
hciconfig:
hci0: Type: Primary Bus: USB
BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0
DOWN INIT RUNNING
RX bytes:0 acl:0 sco:0 events:0 errors:0
TX bytes:0 acl:0 sco:0 commands:0 errors:0
rfkill:
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: amd64 apport-bug stonking wayland-session
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https://bugs.launchpad.net/bugs/2162608
Title:
mt7927 firmware bug/firmware is missing, throwing errors
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