系统详细信息:
安装历史:
从 CD 安装了 14.04 ubuntu LTS,并使用软件更新升级到 16.04 LTS。
笔记本电脑具有 Windows7 和 Ubuntu 双启动功能
观察:
有趣的观察是,如果 Windows/Linux 操作系统在高带宽 wifi 覆盖下工作,则 Windows/Linux 将继续正常工作(永远)。在低带宽 wifi 覆盖下,Windows/Linux 会在 5 分钟内挂起。
这意味着,Ubuntu/Windows7 可以正常工作(永远),直到某些应用程序/浏览器通过 wifi 连接到互联网。
mohet01@mohet01-ubuntu:~$lspci -knn | grep Net 02:00.0 Network controller [0280]: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter [168c:0036] (rev 01) Subsystem: Dell QCA9565 / AR9565 Wireless Network Adapter [1028:020c]
Windows 7 和 Ubuntu 也遇到了类似的挂起问题。
所有连接的应用程序都挂了,ubuntu 也挂了。需要硬重启 ubuntu。
Ubuntu 设置为太平洋标准时间,而笔记本电脑位于东部标准时间
以下错误模式始终显示
/var/log/syslog
/************************************************************************************/
Mar 11 08:01:09 mohet01-ubuntu kernel: [ 320.383424] ath: phy0: Chip reset failed
Mar 11 08:01:09 mohet01-ubuntu kernel: [ 320.383431] ath: phy0: Unable to reset channel, reset status -22
Mar 11 08:01:09 mohet01-ubuntu kernel: [ 320.393976] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
...........
Mar 11 08:01:12 mohet01-ubuntu NetworkManager[946]: <warn> [1489248072.6608] device (wlan0): Activation: (wifi) association took too long, failing activation
Mar 11 08:01:12 mohet01-ubuntu NetworkManager[946]: <info> [1489248072.6609] device (wlan0): state change: config -> failed (reason 'ssid-not-found') [50 120 53]
Mar 11 08:01:12 mohet01-ubuntu NetworkManager[946]: <info> [1489248072.6611] manager: NetworkManager state is now DISCONNECTED
Mar 11 08:01:12 mohet01-ubuntu NetworkManager[946]: <warn> [1489248072.6616] device (wlan0): Activation: failed for connection 'Toronto Public Library'
Mar 11 08:01:12 mohet01-ubuntu NetworkManager[946]: <info> [1489248072.6624] device (wlan0): state change: failed -> disconnected (reason 'none') [120 30 0]
Mar 11 08:01:12 mohet01-ubuntu kernel: [ 323.996216] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Mar 11 08:01:12 mohet01-ubuntu NetworkManager[946]: <info> [1489248072.6649] device (wlan0): supplicant interface state: scanning -> disconnected
Mar 11 08:01:12 mohet01-ubuntu wpa_supplicant[1218]: wlan0: Reject scan trigger since one is already pending
Mar 11 08:01:12 mohet01-ubuntu kernel: [ 324.141569] ath: phy0: Chip reset failed
Mar 11 08:01:12 mohet01-ubuntu kernel: [ 324.141575] ath: phy0: Unable to reset channel, reset status -22
Mar 11 08:01:12 mohet01-ubuntu kernel: [ 324.152109] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
/var/log/faillog
除此以外没有任何信息^@^@
问题:
这与硬件问题有关吗?
或者
这是否与 Linux/Windows7 中的 WIFI 驱动程序问题有关并引发了此问题?