Comment 12 for bug 1754555

regessio是什麼意思呢？

2018-04-26 14:04 GMT+08:00 Kai-Heng Feng <email address hidden>:

> 請在 [0] 找出第一個產生regressio的v4.10-rc* kernel.
>
> [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1754555
>
> Title:
> acer电脑无法启动wifi
>
> Status in linux package in Ubuntu:
> Confirmed
>
> Bug description:
> acer aspire 4752安装了ubuntu16.04
> 内核4.4一切正常，升级了18.04，内核4.15，发现无法启动无线网卡，具体问题也是点击“开启wifi”，
> 然后开启后，提示wifi已禁用，用热键开启wifi也不行。
>
> $lspci
> 网卡型号是：Qualcomm Atheros AR9287 Wireless Network Adapter (PCI-Express)
> (rev 01)
> 各种方法都尝试了，最后在一个不起眼的角落里找到了方法，如下：
>
> sudo vim /etc/modprobe.d/blacklist.conf
>
> 最后加入一行 blacklist acer-wmi #将acer-wmi驱动加入黑名单
> 重启即可。。。
>
> ProblemType: Bug
> DistroRelease: Ubuntu 18.04
> Package: linux-image-generic 4.15.0.10.11
> ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3
> Uname: Linux 4.15.0-10-generic x86_64
> AlsaVersion: Advanced Linux Sound Architecture Driver Version
> k4.15.0-10-generic.
> AplayDevices: Error: [Errno 2] No such file or directory: 'aplay':
> 'aplay'
> ApportVersion: 2.20.8-0ubuntu10
> Architecture: amd64
> ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord':
> 'arecord'
> AudioDevicesInUse:
> USER PID ACCESS COMMAND
> /dev/snd/pcmC0D0p: admin 1187 F...m pulseaudio
> /dev/snd/controlC0: admin 1187 F.... pulseaudio
> Card0.Amixer.info: Error: [Errno 2] No such file or directory:
> 'amixer': 'amixer'
> Card0.Amixer.values: Error: [Errno 2] No such file or directory:
> 'amixer': 'amixer'
> CurrentDesktop: MATE
> Date: Fri Mar 9 12:09:53 2018
> IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig':
> 'iwconfig'
> MachineType: Acer Aspire 4752
> ProcFB: 0 inteldrmfb
> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-10-generic
> root=UUID=d4b4468a-f732-42b5-89ac-dbeef56e0c79 ro quiet swapaccount=1
> RelatedPackageVersions:
> linux-restricted-modules-4.15.0-10-generic N/A
> linux-backports-modules-4.15.0-10-generic N/A
> linux-firmware 1.172
> RfKill:
> 0: phy0: Wireless LAN
> Soft blocked: no
> Hard blocked: no
> SourcePackage: linux
> UpgradeStatus: No upgrade log present (probably fresh install)
> WifiSyslog:
>
> dmi.bios.date: 08/11/2011
> dmi.bios.vendor: Phoenix Technologies Ltd.
> dmi.bios.version: V2.09
> dmi.board.asset.tag: No Asset Tag
> dmi.board.name: Aspire 4752
> dmi.board.vendor: Acer
> dmi.board.version: V2.09
> dmi.chassis.asset.tag: No Asset Tag
> dmi.chassis.type: 9
> dmi.chassis.vendor: Acer
> dmi.chassis.version: V2.09
> dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.09:bd08/11/2011:
> svnAcer:pnAspire4752:pvrV2.09:rvnAcer:rnAspire4752:rvrV2.09:
> cvnAcer:ct9:cvrV2.09:
> dmi.product.family: HuronRiver System
> dmi.product.name: Aspire 4752
> dmi.product.version: V2.09
> dmi.sys.vendor: Acer
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/
> 1754555/+subscriptions
>