** Description changed: [Impact] The Wi-Fi is hard blocked on Dell systems (CIDs: 202505-36757, 202501-36195, 202501-36253) and HP systems with Mediatek MT7925 cards. The wireless connection cannot be used. The rfkill state shows: $ rfkill list 0: hci0: Bluetooth Soft blocked: no Hard blocked: no 1: phy0: Wireless LAN Soft blocked: no Hard blocked: yes [Fix] We revert the hardware rfkill polling feature for Mediatek MT7925 cards. This polling feature was introduced upstream in v6.16. We also revert the local DMI quirk for HP systems since polling is now disabled. Reverted commits: • Revert "wifi: mt76: mt7925: add rfkill_poll for hardware rfkill" (reverts upstream commit e54b870212c079bef4ff61238f8c1278a14d1863 from v6.16) • Revert local DMI quirk commit for HP systems (reverts local commit 20c9b07dcea9d49c876c9532a48a6dc88f43d0f9) [Test Plan] Check the rfkill state on affected hardware: $ rfkill list Without the patches: The Wireless LAN interface shows "Hard blocked: yes". The Wi-Fi connection does not work. With the patches: The Wireless LAN interface shows "Hard blocked: no". The Wi-Fi connection works. [Where problems could occur] This change affects the mt76 Mediatek wireless driver. - If a system has a physical wireless switch that needs software polling, the switch will stop working. Toggling the physical switch would not + If a system has a physical wireless switch that needs software polling, + the switch will stop working. Toggling the physical switch would not change the Wi-Fi block state. ========================================================= [Impact] The wifi is hard blocked and can't be used randomly. [Test] 1. Boot up Machine 2. Run `rfkill list` to check wlan0 block state Wireless: Mediatek Inc. - 14c3:7925 ubuntu@localhost:~$ rfkill list 0: hci0: Bluetooth Soft blocked: no Hard blocked: no 1: phy0: Wireless LAN Soft blocked: no Hard blocked: yes [Affected Machines] 202505-36757 202501-36195 202501-36253 [Similar Issue] https://bugs.launchpad.net/ubuntu/+source/linux-oem-6.14/+bug/2127044 ProblemType: Bug DistroRelease: Ubuntu 24.04 Package: linux-image-6.17.0-1020-oem 6.17.0-1020.20 ProcVersionSignature: Ubuntu 6.17.0-1020.20-oem 6.17.13 Uname: Linux 6.17.0-1020-oem x86_64 ApportVersion: 2.28.2-0ubuntu0.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: ubuntu 1918 F.... pipewire ubuntu 1922 F.... wireplumber /dev/snd/controlC0: ubuntu 1922 F.... wireplumber /dev/snd/seq: ubuntu 1918 F.... pipewire CasperMD5CheckMismatches: ./casper/initrd ./casper/vmlinuz ./casper/minimal.standard.live.hotfix.manifest ./casper/minimal.standard.live.hotfix.size ./casper/minimal.standard.live.size ./casper/minimal.manifest ./casper/minimal.standard.manifest ./casper/minimal.standard.size ./casper/minimal.hotfix.size ./casper/minimal.standard.live.hotfix.squashfs ./casper/minimal.standard.hotfix.squashfs ./casper/minimal.standard.hotfix.size ./casper/minimal.hotfix.squashfs ./casper/minimal.standard.live.manifest ./casper/minimal.size ./boot/grub/grub.cfg CasperMD5CheckResult: fail Date: Thu Jun 25 05:43:16 2026 DistributionChannelDescriptor: # This is the distribution channel descriptor for Ubuntu 24.04 for Dell # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-noble-oem-24.04b-proposed-20250604-520 InstallationDate: Installed on 2026-05-07 (49 days ago) InstallationMedia: Ubuntu OEM 24.04.2 LTS "Noble Numbat" - Release amd64 (20250603) IwConfig: lo no wireless extensions. enp195s0f0 no wireless extensions. wlp194s0 no wireless extensions. MachineType: Dell Inc. Dell Pro Max 14 MC14255 ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.17.0-1020-oem root=UUID=881d0e73-6adc-444d-90b2-9491672e82b1 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-6.17.0-1020-oem N/A linux-backports-modules-6.17.0-1020-oem N/A linux-firmware 20240318.git3b128b60-0ubuntu2.27 SourcePackage: linux-oem-6.17 UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/09/2025 dmi.bios.release: 1.4 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.4.1 dmi.board.name: 0WT010 dmi.board.vendor: Dell Inc. dmi.board.version: D01 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.ec.firmware.release: 1.3 dmi.modalias: dmi:bvnDellInc.:bvr1.4.1:bd09/09/2025:br1.4:efr1.3:svnDellInc.:pnDellProMax14MC14255:pvr:rvnDellInc.:rn0WT010:rvrD01:cvnDellInc.:ct10:cvr:sku0D80: dmi.product.family: Dell Pro Max Laptops dmi.product.name: Dell Pro Max 14 MC14255 dmi.product.sku: 0D80 dmi.sys.vendor: Dell Inc.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2158229 Title: MT7925 wifi is hard blocked on Dell's machine To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2158229/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
