Vadim Peretokin提出的问题 -ubuntu

Vadim Peretokin

Asked: 2023-08-04 14:16:54 +0800 CST

如何在计时器上启动和停止 systemd 服务？

8

虽然设置systemd在特定时间启动服务相对简单，但如何才能使其在不同时间停止？

这个想法是只在夜间运行服务，并在早上停止。

Vadim Peretokin

Asked: 2021-10-30 01:56:50 +0800 CST

WiFi 可以看到一些 5GHz AP，但不是我的

1

我的路由器广播了两个 wifi 网络——一个在 2.4GHz 上，一个在 5GHz 上。在我的手机上使用 wifi 扫描仪，我可以看到两个网络都可用：

但是，当我使用 Qualcomm 的 AR93xx 无线网络适配器在我的桌面上扫描这些端点时，虽然它能够很好地看到 2.4GHz 网络，但根本看不到 5GHz 网络。

为什么会这样？它确实看到了该地区的其他 5Ghz 网络：

sudo iwlist wlo1 scan
wlo1      Scan completed :
          Cell 01 - Address: AE:F8:CC:06:1F:18
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=47/70  Signal level=-63 dBm  
                    Encryption key:on
                    ESSID:"Ziggo"
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                              36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=000000009cb5a032
                    Extra: Last beacon: 68ms ago
                    IE: Unknown: 00055A6967676F
                    IE: Unknown: 01088C129824B048606C
                    IE: Unknown: 030106
                    IE: Unknown: 0706455520010D14
                    IE: Unknown: 2A0100
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : 802.1x
                    IE: Unknown: 3B025100
                    IE: Unknown: 2D1A2D0017FFFFFF00000000000000C2010100000000001004870100
                    IE: Unknown: 3D1606000400000000000000000000000000000000000000
                    IE: Unknown: 7F080500000200000040
                    IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
          Cell 02 - Address: <>
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=49/70  Signal level=-61 dBm  
                    Encryption key:on
                    ESSID:"<my network>8-2.4GHz"
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                              36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=000000009cb59dd8
                    Extra: Last beacon: 68ms ago
                    IE: Unknown: 00135A6967676F383730383433382D322E3447487A
                    IE: Unknown: 01088C129824B048606C
                    IE: Unknown: 030106
                    IE: Unknown: 0706455520010D14
                    IE: Unknown: 2A0100
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 46050200000000
                    IE: Unknown: 3B025100
                    IE: Unknown: 46050200000000
                    IE: Unknown: 2D1A2D0017FFFFFF00000000000000C2010100000000001004870100
                    IE: Unknown: 3D1606000400000000000000000000000000000000000000
                    IE: Unknown: 7F080500080200000040
                    IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
                    IE: Unknown: DD860050F204104A00011010440001021057000101103B000103104700105B8D809E1B7D5AF2B391833B950A7DD41021000643656C656E6F10230006434C323430301024000232301042000531323334351054000800060050F204000110110012576972656C65737320415020434C32343030100800020000103C0001031049000600372A000120
          Cell 03 - Address: 18:35:D1:27:CE:FF
                    Channel:44
                    Frequency:5.22 GHz (Channel 44)
                    Quality=44/70  Signal level=-66 dBm  
                    Encryption key:on
                    ESSID:"Ziggo5072369"
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                              36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000005e12f11f09
                    Extra: Last beacon: 3368ms ago
                    IE: Unknown: 000C5A6967676F35303732333639
                    IE: Unknown: 01088C129824B048606C
                    IE: Unknown: 03012C
                    IE: Unknown: 073C4555202401172801172C01173001173401173801173C011740011764011E68011E6C011E70011E74011E78011E7C011E80011E84011E88011E8C011E
                    IE: Unknown: 460573D000000C
                    IE: Unknown: 2D1AEF091BFFFFFF0000000000000000000100000000000000000000
                    IE: Unknown: 3D162C050500000000000000000000000000000000000000
                    IE: Unknown: 4A0E14000A002C01C800140005001900
                    IE: Unknown: 7F0805000F0200000040
                    IE: Unknown: BF0CB2018033EAFF0000EAFF0000
                    IE: Unknown: C005012A00FCFF
                    IE: Unknown: C30402D2D2D2
                    IE: Unknown: DD180050F2020101840003A4000027A4000042435E0062322F00
                    IE: Unknown: DD0900037F01010000FF7F
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD9F0050F204104A0001101044000102103B000103104700105A1A5253659656489329A74B8B4A69671021001C41746865726F7320436F6D6D756E69636174696F6E732C20496E632E102300044150787810240008415078782D7878781042001253657269616C204E756D62657220486572651054000800060050F20400011011000941746865726F734150100800020104103C0001021049000600372A000120
          Cell 04 - Address: E8:48:B8:76:E7:90
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=45/70  Signal level=-65 dBm  
                    Encryption key:on
                    ESSID:"Donotpeek"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
                              18 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=000000350360840e
                    Extra: Last beacon: 68ms ago
                    IE: Unknown: 0009446F6E6F747065656B
                    IE: Unknown: 010882848B961224486C
                    IE: Unknown: 030101
                    IE: Unknown: 2A0104
                    IE: Unknown: 32040C183060
                    IE: WPA Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 2D1AAD0117FFFFFF0000000000000000000000000000001804871100
                    IE: Unknown: 3D1601000400000000000000000000000000000000000000
                    IE: Unknown: 7F080000080000000000
                    IE: Unknown: 0B05020000127A
                    IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
                    IE: Unknown: 46050200000000
                    IE: Unknown: 330E040102030405060708090A0B0C0D
                    IE: Unknown: 200103
                    IE: Unknown: 23023F00
                    IE: Unknown: 0706444520010D23
                    IE: Unknown: BF0CB179C233EAFF9204EAFF9204
                    IE: Unknown: C005000000EAFF
                    IE: Unknown: DD07000C430B000000
                    IE: Unknown: DD21000CE708000000BF0CB101C0332AFF92042AFF9204C0050000002AFFC303010202
                    IE: Unknown: DD1E001D0F100204000000000000000000000000000000000000000000000000
                    IE: Unknown: DD1E003192100204000000000000000000000000000000000000000000000000
          Cell 05 - Address: 18:35:D1:27:CE:F9
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=50/70  Signal level=-60 dBm  
                    Encryption key:on
                    ESSID:"Ziggo5072369"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000005e27af80fe
                    Extra: Last beacon: 68ms ago
                    IE: Unknown: 000C5A6967676F35303732333639
                    IE: Unknown: 010882848B968C129824
                    IE: Unknown: 030101
                    IE: Unknown: 0706455520010D14
                    IE: Unknown: 2A0100
                    IE: Unknown: 3204B048606C
                    IE: Unknown: 460573D000000C
                    IE: Unknown: 2D1AAD011BFFFF0000000000000000000001000000000406E6A70C00
                    IE: Unknown: 3D1601080400000000000000000000000000000000000000
                    IE: Unknown: 4A0E14000A002C01C800140005001900
                    IE: Unknown: 7F0805000F0200000040
                    IE: Unknown: DD180050F2020101840003A4000027A4000042435E0062322F00
                    IE: Unknown: DD0900037F01010000FF7F
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD9F0050F204104A0001101044000102103B000103104700105A1A5253659656489329A74B8B4A69671021001C41746865726F7320436F6D6D756E69636174696F6E732C20496E632E102300044150787810240008415078782D7878781042001253657269616C204E756D62657220486572651054000800060050F20400011011000941746865726F734150100800020104103C0001021049000600372A000120
          Cell 06 - Address: F6:57:40:9A:1A:48
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=29/70  Signal level=-81 dBm  
                    Encryption key:on
                    ESSID:"Ziggo"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=000000e842d48e13
                    Extra: Last beacon: 68ms ago
                    IE: Unknown: 00055A6967676F
                    IE: Unknown: 010882848B968C129824
                    IE: Unknown: 030101
                    IE: Unknown: 0706455520010D14
                    IE: Unknown: 2A0100
                    IE: Unknown: 3204B048606C
                    IE: Unknown: 2D1AAD011BFFFF0000000000000000000001000000000406E6A70C00
                    IE: Unknown: 3D1601080400000000000000000000000000000000000000
                    IE: Unknown: 4A0E14000A002C01C800140005001900
                    IE: Unknown: 7F080500000200000040
                    IE: Unknown: DD180050F2020101840003A4000027A4000042435E0062322F00
                    IE: Unknown: DD0900037F01010000FF7F
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : 802.1x
          Cell 07 - Address: 2A:35:D1:27:CE:F9
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=50/70  Signal level=-60 dBm  
                    Encryption key:on
                    ESSID:"Ziggo"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000005e27aec774
                    Extra: Last beacon: 68ms ago
                    IE: Unknown: 00055A6967676F
                    IE: Unknown: 010882848B968C129824
                    IE: Unknown: 030101
                    IE: Unknown: 0706455520010D14
                    IE: Unknown: 2A0100
                    IE: Unknown: 3204B048606C
                    IE: Unknown: 2D1AAD011BFFFF0000000000000000000001000000000406E6A70C00
                    IE: Unknown: 3D1601080400000000000000000000000000000000000000
                    IE: Unknown: 4A0E14000A002C01C800140005001900
                    IE: Unknown: 7F080500000200000040
                    IE: Unknown: DD180050F2020101840003A4000027A4000042435E0062322F00
                    IE: Unknown: DD0900037F01010000FF7F
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : 802.1x
          Cell 08 - Address: F4:E3:FB:0B:1E:28
                    Channel:8
                    Frequency:2.447 GHz (Channel 8)
                    Quality=29/70  Signal level=-81 dBm  
                    Encryption key:on
                    ESSID:"VFNL-0B1E21"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=000004cc9579718d
                    Extra: Last beacon: 5340ms ago
                    IE: Unknown: 000B56464E4C2D304231453231
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 030108
                    IE: Unknown: 050400010000
                    IE: Unknown: 2A0104
                    IE: Unknown: 2F0104
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32040C121860
                    IE: Unknown: 2D1AAC181BFFFF000000000000000000000000000000000000000000
                    IE: Unknown: 3D1608000400000000000000000000000000000000000000
                    IE: Unknown: 4A0E14000A002C01C800140005001900
                    IE: Unknown: 7F080100000000000040
                    IE: Unknown: DD1000E0FC80000000230000000000000000
                    IE: Unknown: DD310050F204104A000110104400010210470010FEE92F84D03DC72AD390C7806836E245103C0001031049000600372A000120
                    IE: Unknown: DD090010180203000C0000
                    IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
          Cell 09 - Address: 90:5C:44:DA:33:57
                    Channel:11
                    Frequency:2.462 GHz (Channel 11)
                    Quality=23/70  Signal level=-87 dBm  
                    Encryption key:on
                    ESSID:"ZiggoDF4EEFE"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
                              18 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=0000004011961d97
                    Extra: Last beacon: 68ms ago
                    IE: Unknown: 000C5A6967676F44463445454645
                    IE: Unknown: 010882848B961224486C
                    IE: Unknown: 03010B
                    IE: Unknown: 2A0104
                    IE: Unknown: 32040C183060
                    IE: Unknown: 0706455520010D14
                    IE: Unknown: 2D1AAC0117FFFF000000000000000000000000000000000000000000
                    IE: Unknown: 3D160B000400000000000000000000000000000000000000
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 7F080100080000000000
                    IE: Unknown: 0B0501005B127A
                    IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
                    IE: Unknown: 46052200000000
                    IE: Unknown: DDA70050F204104A0001101044000102103B0001031047001088547A001DD211B286015543A04A64431021001852616C696E6B20546563686E6F6C6F67792C20436F72702E1023001C52616C696E6B20576972656C6573732041636365737320506F696E74102400065254323836301042000831323334353637381054000800060050F20400011011000952616C696E6B415053100800020000103C0001011049000600372A000120
                    IE: Unknown: DD07000C4300000000

Vadim Peretokin

Asked: 2018-03-15 00:14:16 +0800 CST

如何在设置中恢复锁屏选项？[复制]

1

我的设置中的锁定屏幕选项消失了，也Windows+L没有Ctrl+Alt+L锁定屏幕 - 他们只是将其关闭。当我移动鼠标时，在恢复操作之前不提示输入密码。

如何恢复丢失的锁定功能？

使用 Ubuntu 17.10。

Vadim Peretokin

Asked: 2017-10-22 07:50:15 +0800 CST

如何让 Workrave 指示器在 Ubuntu 17.10 中显示？

19

如何在 Ubuntu 17.10 中显示 Workrave 指示器？1.10 版据说支持 GNOME Shell。

Vadim Peretokin

Asked: 2017-04-05 19:31:39 +0800 CST

如何伪造 HiDPI，以便在其上测试我的应用程序？

1

我是一名软件开发人员，需要让我的软件在 HiDPI 显示器上运行，但我没有。我怎样才能伪造它，以便我可以看到用户看到的内容？

Vadim Peretokin

Asked: 2016-10-03 16:48:10 +0800 CST

这个错误是什么意思？

6

日志中不断出现以下错误：

Oct  3 09:51:36 gooseberry kernel: [15050.345601] sd 5:0:0:0: [sdb] tag#0 CDB: ATA command pass through(12)/Blank a1 06 20 da 00 00 4f c2 00 b0 00 00
Oct  3 10:01:35 gooseberry kernel: [15649.821810] sd 5:0:0:0: [sdb] tag#0 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_SENSE
Oct  3 10:01:35 gooseberry kernel: [15649.821817] sd 5:0:0:0: [sdb] tag#0 Sense Key : Hardware Error [current] [descriptor] 
Oct  3 10:01:35 gooseberry kernel: [15649.821820] sd 5:0:0:0: [sdb] tag#0 Add. Sense: No additional sense information
Oct  3 10:01:35 gooseberry kernel: [15649.821824] sd 5:0:0:0: [sdb] tag#0 CDB: ATA command pass through(16) 85 06 20 00 00 00 00 00 00 00 00 00 00 00 e5 00
Oct  3 10:01:36 gooseberry kernel: [15650.300873] sd 5:0:0:0: [sdb] tag#0 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_SENSE
Oct  3 10:01:36 gooseberry kernel: [15650.300879] sd 5:0:0:0: [sdb] tag#0 Sense Key : Hardware Error [current] [descriptor] 
Oct  3 10:01:36 gooseberry kernel: [15650.300881] sd 5:0:0:0: [sdb] tag#0 Add. Sense: No additional sense information
Oct  3 10:01:36 gooseberry kernel: [15650.300885] sd 5:0:0:0: [sdb] tag#0 CDB: ATA command pass through(12)/Blank a1 06 20 da 00 00 4f c2 00 b0 00 00

$ uname -a 
Linux gooseberry 4.4.0-38-generic #57-Ubuntu SMP Tue Sep 6 15:42:33 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

Vadim Peretokin

Asked: 2014-11-07 19:31:13 +0800 CST

无法登录 Ubuntu。如何删除 ATI Catalyst 驱动程序？

1

在 Ubuntu 14.10 HP Zbook 14 上安装 Catalyst 驱动程序破坏了系统 - 它无法启动 X 显示，因为它现在崩溃了，我无法切换到 tty 或命令行来删除驱动程序，因为它什么都不做。

我该如何修复系统？

Vadim Peretokin

Asked: 2011-04-08 07:16:17 +0800 CST

如何通过 cmd 行检索文件的公共 URL？

2

如何通过命令获取文件的公共 URL？我需要在 Lua 脚本中执行此操作，因此 Python 或提供的任何其他 API 都不好。

Vadim Peretokin

Asked: 2011-02-18 11:55:46 +0800 CST

如何以编程方式登录热点类型的网络？

8

我经常连接到一个开放的网络，但在用于网页之前需要通过密钥验证。是否可以使用脚本自动进行身份验证？

Vadim Peretokin

Asked: 2011-01-09 10:22:53 +0800 CST

如何在 bzr 中创建当前和最新标记版本之间的文件差异？

6

我有一个使用 bzr 跟踪的文件，我想编写脚本在它的当前（当前为当前，不是最新提交）和标记为.

有谁知道如何做到这一点？没有多少 bzr 脚本或 Python 专家。

Vadim Peretokin

Asked: 2010-12-27 18:46:32 +0800 CST

使用 PulseAudio 实时降噪？

143

是否可以使用 PulseAudio 进行实时降噪，使输出的声音更流畅？

Vadim Peretokin

Asked: 2010-12-27 03:43:00 +0800 CST

如何在 ETQW 中获得无延迟的声音和 VOIP？

1

Enemy Territory: Quake wars 中的声音过去可以正常工作，只是使用 VOIP 热键会彻底崩溃。现在，经过一番摆弄，我开始有延迟半分钟的声音，现在完全没有声音。

有没有人有关于如何让 VOIP 工作的提示？

Vadim Peretokin

Asked: 2010-12-09 18:45:44 +0800 CST

如何配置 GNOME 桌面启动？

4

输入登录凭据后，如何分析哪些程序正在使用 HD 加载？

最近有点太花时间了。

Vadim Peretokin

Asked: 2010-10-29 09:14:59 +0800 CST

如何报告 Xorg 重启？

3

最近，当我启用/禁用 Twinview 或可用内存不足时，X 服务器重新启动时遇到问题。

发生此类事件后，我将如何报告？

如何在计时器上启动和停止 systemd 服务？

WiFi 可以看到一些 5GHz AP，但不是我的

如何在设置中恢复锁屏选项？[复制]

如何让 Workrave 指示器在 Ubuntu 17.10 中显示？

如何伪造 HiDPI，以便在其上测试我的应用程序？

这个错误是什么意思？

无法登录 Ubuntu。如何删除 ATI Catalyst 驱动程序？

如何通过 cmd 行检索文件的公共 URL？

如何以编程方式登录热点类型的网络？

如何在 bzr 中创建当前和最新标记版本之间的文件差异？

使用 PulseAudio 实时降噪？

如何在 ETQW 中获得无延迟的声音和 VOIP？

如何配置 GNOME 桌面启动？

如何报告 Xorg 重启？

如何运行 .sh 脚本？

如何安装 .tar.gz（或 .tar.bz2）文件？

如何列出所有已安装的软件包

无法锁定管理目录 (/var/lib/dpkg/) 是另一个进程在使用它吗？

Vadim Peretokin's questions