> On Feb 2, 2018, at 1:14 PM, PeterPall <1746...@bugs.launchpad.net> wrote: > > I had tried all combinations: > > - btcoex_enable=0 and bt_ant_diversity=1 does help a little bit with > bluetooth. But not much
Do you see "Set BT/WLAN RX diversity capability” in dmesg? Your wireless chip doesn’t support bt_ant_diversity if you don’t see this message. > - btcoex_enable=1 and bt_ant_diversity=0 does solve the bluetooth problem for > me > - btcoex_enable=1 and bt_ant_diversity=1 Here I have the feeling that it > makes changing files and fast-forward/fast-backward smoother in mplayer > (btcoex_enable=1 and bt_ant_diversity=0 in rare cases gives "bluetooth device > stuck" messages, but working audio). BT antenna diversity won’t get set when btcoex_enable is 1. So both bt_ant_diversity=[0,1] have the same effect. > - btcoex_enable=0 and bt_ant_diversity=0: Bluetooth keeps hanging *and* low > wifi performance while using bluetooth. > > -- > You received this bug notification because you are subscribed to linux > in Ubuntu. > https://bugs.launchpad.net/bugs/1746164 > > Title: > [ath9k] Enable Bluetooth-Wifi coexistence by default (bluetooth audio > and network skip on Wifi activity) > > Status in linux package in Ubuntu: > Confirmed > > Bug description: > By default BT audio works fine on Ubuntu - if there is no WiFi active: > Both work on the same frequency range, 2 WiFi channel is about 20 > Bluetooth Channels wide and every time a WiFi package is sent > bluetooth risks a packet loss. > > Creating a file named /etc/modprobe.d/bluetooth-audio.conf with the > following content: > > options ath9k btcoex_enable=1 bt_ant_diversity=1 > > resolves the problem and drastically increases bluetooth throughput > for all other use cases (bluetooth networking that doesn't drop every > time the WiFi probes something, lower latency Bluetooth HIDs. > > We should ship things in a way that they work out-of-the-box => I am > all for providing this file with Ubuntu, possibly with Bluez. > > In the case of my laptop btcoex_enable=1 would already do the trick. > > > Technical background: > - https://wireless.wiki.kernel.org/en/users/drivers/ath9k/btcoex > - https://wiki.freebsd.org/dev/ath_hal(4)/AntennaDiversity > > ProblemType: Bug > DistroRelease: Ubuntu 18.04 > Package: bluez 5.46-0ubuntu4 > Uname: Linux 4.15.0-041500rc9-lowlatency x86_64 > ApportVersion: 2.20.8-0ubuntu6 > Architecture: amd64 > CurrentDesktop: GNOME > Date: Tue Jan 30 06:40:12 2018 > EcryptfsInUse: Yes > InterestingModules: rfcomm bnep btusb bluetooth > MachineType: Acer Aspire S7-391 > ProcEnviron: > TERM=xterm-256color > PATH=(custom, no user) > XDG_RUNTIME_DIR=<set> > LANG=de_DE.UTF-8 > SHELL=/bin/bash > ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.15.0-041500rc9-lowlatency > root=UUID=6d0fd0ad-9048-4fdb-881a-eba6d6d13c3b ro rootflags=subvol=@ > acpi_backlight=vendor init=/lib/systemd/systemd intel_pstate=enable > nmi_watchdog=0 quiet splash acpi_backlight=vendor init=/lib/systemd/systemd > intel_pstate=enable video=vesafb:ywrap,mtrr=3 nmi_watchdog=0 vt.handoff=1 > SourcePackage: bluez > UpgradeStatus: No upgrade log present (probably fresh install) > dmi.bios.date: 11/16/2012 > dmi.bios.vendor: Insyde Corp. > dmi.bios.version: V2.09 > dmi.board.asset.tag: No Asset Tag > dmi.board.name: Storm > dmi.board.vendor: Acer > dmi.board.version: V2.09 > dmi.chassis.asset.tag: No Asset Tag > dmi.chassis.type: 10 > dmi.chassis.vendor: Acer > dmi.chassis.version: V2.09 > dmi.modalias: > dmi:bvnInsydeCorp.:bvrV2.09:bd11/16/2012:svnAcer:pnAspireS7-391:pvrV2.09:rvnAcer:rnStorm:rvrV2.09:cvnAcer:ct10:cvrV2.09: > dmi.product.family: ChiefRiver System > dmi.product.name: Aspire S7-391 > dmi.product.version: V2.09 > dmi.sys.vendor: Acer > hciconfig: > hci0: Type: Primary Bus: USB > BD Address: 68:94:23:49:1B:BC ACL MTU: 1022:8 SCO MTU: 183:5 > UP RUNNING PSCAN > RX bytes:688 acl:0 sco:0 events:49 errors:0 > TX bytes:3167 acl:0 sco:0 commands:49 errors:0 > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1746164/+subscriptions -- 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/1746164 Title: [ath9k] Enable Bluetooth-Wifi coexistence by default (bluetooth audio and network skip on Wifi activity) Status in linux package in Ubuntu: Confirmed Bug description: By default BT audio works fine on Ubuntu - if there is no WiFi active: Both work on the same frequency range, 2 WiFi channel is about 20 Bluetooth Channels wide and every time a WiFi package is sent bluetooth risks a packet loss. Creating a file named /etc/modprobe.d/bluetooth-audio.conf with the following content: options ath9k btcoex_enable=1 bt_ant_diversity=1 resolves the problem and drastically increases bluetooth throughput for all other use cases (bluetooth networking that doesn't drop every time the WiFi probes something, lower latency Bluetooth HIDs. We should ship things in a way that they work out-of-the-box => I am all for providing this file with Ubuntu, possibly with Bluez. In the case of my laptop btcoex_enable=1 would already do the trick. Technical background: - https://wireless.wiki.kernel.org/en/users/drivers/ath9k/btcoex - https://wiki.freebsd.org/dev/ath_hal(4)/AntennaDiversity ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: bluez 5.46-0ubuntu4 Uname: Linux 4.15.0-041500rc9-lowlatency x86_64 ApportVersion: 2.20.8-0ubuntu6 Architecture: amd64 CurrentDesktop: GNOME Date: Tue Jan 30 06:40:12 2018 EcryptfsInUse: Yes InterestingModules: rfcomm bnep btusb bluetooth MachineType: Acer Aspire S7-391 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.15.0-041500rc9-lowlatency root=UUID=6d0fd0ad-9048-4fdb-881a-eba6d6d13c3b ro rootflags=subvol=@ acpi_backlight=vendor init=/lib/systemd/systemd intel_pstate=enable nmi_watchdog=0 quiet splash acpi_backlight=vendor init=/lib/systemd/systemd intel_pstate=enable video=vesafb:ywrap,mtrr=3 nmi_watchdog=0 vt.handoff=1 SourcePackage: bluez UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Insyde Corp. dmi.bios.version: V2.09 dmi.board.asset.tag: No Asset Tag dmi.board.name: Storm dmi.board.vendor: Acer dmi.board.version: V2.09 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Acer dmi.chassis.version: V2.09 dmi.modalias: dmi:bvnInsydeCorp.:bvrV2.09:bd11/16/2012:svnAcer:pnAspireS7-391:pvrV2.09:rvnAcer:rnStorm:rvrV2.09:cvnAcer:ct10:cvrV2.09: dmi.product.family: ChiefRiver System dmi.product.name: Aspire S7-391 dmi.product.version: V2.09 dmi.sys.vendor: Acer hciconfig: hci0: Type: Primary Bus: USB BD Address: 68:94:23:49:1B:BC ACL MTU: 1022:8 SCO MTU: 183:5 UP RUNNING PSCAN RX bytes:688 acl:0 sco:0 events:49 errors:0 TX bytes:3167 acl:0 sco:0 commands:49 errors:0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1746164/+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
