谁都可以，请帮帮我。
我已经在我的 HP Envy 笔记本电脑上安装 ubuntu 大约 2 个月了。首先安装的是 Ubuntu 16.04，然后更新到 18.04。wifi 会随机冻结，尽管小程序显示它仍处于连接状态。通过禁用 wifi 并再次启用或尝试连接到其他会话，然后重新连接，互联网会在 5 秒到几分钟之间的随机时间内恢复。
尝试在 /var/log/syslog 中查找任何内容，但没有成功。在论坛中发现应该将 acer_wmi 列入黑名单，所以我添加了一条记录，但/etc/modprobe.d/blacklist.conf没有任何变化。尝试添加选项options iwlwifi 11n_disable=1，2或者8- 没有任何变化。
ifconfig 显示
wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet my.indet.add.ress netmask 255.255.255.0 broadcast my.ip.add.ress
inet6 fe80::5ee0:c5ff:fe40:7ed2 prefixlen 64 scopeid 0x20<link>
ether mac_address txqueuelen 1000 (Ethernet)
RX packets 114873 bytes 164468194 (164.4 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 35470 bytes 4605873 (4.6 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
输出lshw -c network
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:07:00.0
logical name: eth0
version: 15
serial: 30:8d:99:1d:dd:04
size: 10Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168h-2_0.0.2 02/26/15 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:49 ioport:4000(size=256) memory:c6104000-c6104fff memory:c6100000-c6103fff
*-network
description: Wireless interface
product: Wireless 7265
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:08:00.0
logical name: wlan0
version: 61
serial: 5c:e0:c5:40:7e:d2
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=4.16.0-041600-generic firmware=29.1044073957.0 ip=192.168.2.152 latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: irq:53 memory:c6000000-c6001fff
输出iw wlan0 info
Interface wlan0
ifindex 4
wdev 0x1
addr my_mac
ssid MYSSID
type managed
wiphy 0
channel 9 (2452 MHz), width: 20 MHz, center1: 2452 MHz
txpower 22.00 dBm
的结果nmcli dev wifi list
IN-USE SSID MODE CHAN RATE SIGNAL BARS SECURITY
* MY_SES_ID Infra 9 130 Mbit/s 72 ▂▄▆_ WPA2
输出dmesg | grep -e wlp -e iwl
[ 17.717549] iwlwifi 0000:08:00.0: loaded firmware version 29.1044073957.0 op_mode iwlmvm
[ 18.840384] iwlwifi 0000:08:00.0: Detected Intel(R) Dual Band Wireless AC 7265, REV=0x210
[ 18.860756] iwlwifi 0000:08:00.0: base HW address: 5c:e0:c5:40:7e:d2
[ 19.308984] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
[ 316.393910] iwlwifi 0000:08:00.0: loaded firmware version 29.1044073957.0 op_mode iwlmvm
[ 316.399446] iwlwifi 0000:08:00.0: Detected Intel(R) Dual Band Wireless AC 7265, REV=0x210
[ 316.422826] iwlwifi 0000:08:00.0: base HW address: 5c:e0:c5:40:7e:d2
[ 316.485142] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
[ 2497.073466] iwlwifi 0000:08:00.0: Detected Intel(R) Dual Band Wireless AC 7265, REV=0x210
[ 2497.098289] iwlwifi 0000:08:00.0: base HW address: 5c:e0:c5:40:7e:d2
[ 2497.160163] ieee80211 phy1: Selected rate control algorithm 'iwl-mvm-rs'
一切都表明我没有问题，尽管我无法在笔记本电脑上使用 ubuntu。
我注意到的唯一可疑的事情（我不知道这是否与问题有关）是iw reg get
global
country 00: DFS-UNSET
(2402 - 2472 @ 40), (6, 20), (N/A)
(2457 - 2482 @ 20), (6, 20), (N/A), AUTO-BW, PASSIVE-SCAN
(2474 - 2494 @ 20), (6, 20), (N/A), NO-OFDM, PASSIVE-SCAN
(5170 - 5250 @ 80), (6, 20), (N/A), AUTO-BW, PASSIVE-SCAN
(5250 - 5330 @ 80), (6, 20), (0 ms), DFS, AUTO-BW, PASSIVE-SCAN
(5490 - 5730 @ 160), (6, 20), (0 ms), DFS, PASSIVE-SCAN
(5735 - 5835 @ 80), (6, 20), (N/A), PASSIVE-SCAN
(57240 - 63720 @ 2160), (N/A, 0), (N/A)
phy#0 (self-managed)
country 00: DFS-UNSET
(2402 - 2437 @ 40), (6, 22), (N/A), AUTO-BW, NO-HT40MINUS, NO-80MHZ, NO-160MHZ
(2422 - 2462 @ 40), (6, 22), (N/A), AUTO-BW, NO-80MHZ, NO-160MHZ
(2447 - 2472 @ 40), (6, 22), (N/A), AUTO-BW, NO-HT40PLUS, NO-80MHZ, NO-160MHZ
(2457 - 2482 @ 40), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, NO-80MHZ, NO-160MHZ, PASSIVE-SCAN
(5170 - 5190 @ 80), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN
(5190 - 5210 @ 80), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN
(5210 - 5230 @ 80), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN
(5230 - 5250 @ 80), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN
(5250 - 5270 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN
(5270 - 5290 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN
(5290 - 5310 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN
(5310 - 5330 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN
(5490 - 5510 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN
(5510 - 5530 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN
(5530 - 5550 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN
(5550 - 5570 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN
(5570 - 5590 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN
(5590 - 5610 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN
(5610 - 5630 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN
(5630 - 5650 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN
(5650 - 5670 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN
(5670 - 5690 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN
(5690 - 5710 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN
(5710 - 5730 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN
(5735 - 5755 @ 80), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN
(5755 - 5775 @ 80), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN
(5775 - 5795 @ 80), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN
(5795 - 5815 @ 80), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN
(5815 - 5835 @ 20), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-HT40PLUS, NO-80MHZ, NO-160MHZ, PASSIVE-SCAN
并且iw reg set US/AM/GB/UK没有效果。
请大家帮我至少诊断一下问题。我应该查看哪些日志？我应该（如何？）启用一些调试信息来跟踪问题吗？