系统信息
- 制造商：惠普
- 产品名称：惠普笔记本电脑 15s-eq0xxx
- Ubuntu 20.04 LTS
- Telegram 应用程序版本 2.4.7
我无法在 Telegram 桌面应用程序中使用我的摄像机。"No camera could be found. Please make sure that your camera is connected to the computer."当我点击视频按钮时。
环聊和 Zoom 一切正常。
我将电报安装为常规快照，但意识到我无法以这种方式拖动上传图像。我真的不想卸载然后重新安装。
我试过了：
snap refresh --devmode telegram-desktop
但它只是回复
'捕捉“电报桌面”没有可用的更新'
帮助解释了命令“将 snap 置于开发模式并禁用安全限制”，但这不是我看到的情况。这是怎么回事？
尝试切换频道但同样的错误信息。
我已经从 Telegram 的官方网站下载了 .tar.xz 文件。我将 Telegram 文件夹从存档中提取到我的Downloads文件夹中。存档只有 2 个可执行文件Telegram，即Updater. Telegram 的菜单项一直显示，直到我将文件夹移动到Telegram文件/opt夹。之后菜单项不显示。Telegram的.desktop文件默认存储在~/.local/share/applications. 我将文件中的可执行路径更改为文件夹.desktop内的路径/opt如下：
[Desktop Entry]
Version=1.0
Name=Telegram Desktop
Comment=Official desktop version of Telegram messaging app
TryExec=/opt/Telegram/Telegram
Exec=/opt/Telegram/Telegram -- %u
Icon=telegram
Terminal=false
StartupWMClass=TelegramDesktop
Type=Application
Categories=Chat;Network;InstantMessaging;Qt;
MimeType=x-scheme-handler/tg;
Keywords=tg;chat;im;messaging;messenger;sms;tdesktop;
X-GNOME-UsesNotifications=true
我不确定是否需要将 .desktop 文件移动到其他位置，因为我将 Telegram 文件夹移动到了，/opt或者文件中是否有问题.desktop。
谢谢你。
我正在尝试编写一个脚本来激活“焦点模式”，所以有一些应用程序（Telegram、Spotify 等）我想关闭它们的通知。
有没有一种聪明的方法来以编程方式做到这一点？
我通过访问https://desktop.telegram.org/安装了 Telegram并下载了一个tar.xz文件。之后我跑了
tar -xJf telegram.tar.xz
它解压缩了tar.xz文件并给了我Telegram一个Updater文件夹。
这两个文件都有一个executable (application/x-executable)作为它们的类型。我通过双击 Telegram 文件安装了 Telegram。
现在，我不确定如何卸载它。我试过了
apt remove telegram
但它说“无法找到包电报”，因为它不是从 apt 安装的。如何正确卸载 Telegram Desktop？
在 18.10 版本中，我发现某些应用程序（例如 Telegram）加载速度太慢。我发现原因有些fontconfig问题。
QEventLoop: Cannot be used without QApplication
Fontconfig warning: "/etc/fonts/conf.d/10-hinting-slight.conf", line 2: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/11-lcdfilter-default.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/11-lcdfilter-default.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/11-lcdfilter-default.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/11-lcdfilter-default.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/11-lcdfilter-default.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/11-lcdfilter-default.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/11-lcdfilter-default.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/20-unhint-small-vera.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/20-unhint-small-vera.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/20-unhint-small-vera.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/20-unhint-small-vera.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/20-unhint-small-vera.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/20-unhint-small-vera.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/20-unhint-small-vera.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/30-metric-aliases.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/30-metric-aliases.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/30-metric-aliases.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/30-metric-aliases.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/30-metric-aliases.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/30-metric-aliases.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/30-metric-aliases.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/40-nonlatin.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/40-nonlatin.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/40-nonlatin.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/40-nonlatin.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/40-nonlatin.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/40-nonlatin.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/40-nonlatin.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/45-generic.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/45-generic.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/45-generic.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/45-generic.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/45-generic.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/45-generic.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/45-generic.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/45-latin.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/45-latin.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/45-latin.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/45-latin.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/45-latin.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/45-latin.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/45-latin.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/49-sansserif.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/49-sansserif.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/49-sansserif.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/49-sansserif.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/49-sansserif.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/49-sansserif.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/49-sansserif.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/50-user.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/50-user.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/50-user.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/50-user.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/50-user.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/50-user.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/50-user.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/51-local.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/51-local.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/51-local.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/51-local.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/51-local.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/51-local.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/51-local.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/60-generic.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/60-generic.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/60-generic.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/60-generic.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/60-generic.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/60-generic.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/60-generic.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/60-latin.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/60-latin.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/60-latin.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/60-latin.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/60-latin.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/60-latin.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/60-latin.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/65-fonts-persian.conf", line 34: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/65-fonts-persian.conf", line 35: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/65-fonts-persian.conf", line 35: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/65-fonts-persian.conf", line 35: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/65-fonts-persian.conf", line 36: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/65-fonts-persian.conf", line 36: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/65-nonlatin.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/65-nonlatin.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/65-nonlatin.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/65-nonlatin.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/65-nonlatin.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/65-nonlatin.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/65-nonlatin.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/69-unifont.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/69-unifont.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/69-unifont.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/69-unifont.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/69-unifont.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/69-unifont.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/70-no-bitmaps.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/70-no-bitmaps.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/70-no-bitmaps.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/70-no-bitmaps.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/70-no-bitmaps.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/70-no-bitmaps.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/70-no-bitmaps.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/80-delicious.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/80-delicious.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/80-delicious.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/80-delicious.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/80-delicious.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/80-delicious.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/90-synthetic.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/90-synthetic.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/90-synthetic.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/90-synthetic.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/90-synthetic.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/90-synthetic.conf", line 6: invalid attribute 'version'
如何解决？
我有一个超级奇怪的问题。每当我尝试通过单击 Telegram Desktop 中的消息打开文件或尝试显示文件时，都会出现此弹出窗口：
我总是必须点击“是”，这非常烦人，因为我打开了这么多文件。
顺便说一句，我使用的是 Ubuntu 16.04 和 Telegram Desktop 版本 1.4.3。
有谁知道如何解决这个问题并给予永久许可？
我觉得在 Ubuntu 下处理 Telegram 很烦人。我运行 18.04.1，我想我选择了 Ubuntu Software 的官方 Telegram 客户端……首先，那里有两个客户端。来自 Ubuntu 商店的一个不能自动更新，另一个不能识别您的主题/图标集/shell（见屏幕截图）...
然后，您还有 Telegram 官方网站上的 tar.xz，它在“显示应用程序”菜单中创建了一个双重条目，并且无论出于何种原因都存在于您的主文件夹中。我相信您还可以找到一些深奥的非官方客户。
所以，这是一团糟。我只想要一个与您的主题完美融合并自动更新到最新版本的官方客户端。很正常的事情，真的。有人有一些线索吗？谢谢！
我已经安装了电报快照并且文件正在保存~/snap/telegram-desktop，或者当我想发送文件时，文件浏览器对话框默认显示此目录，这有点烦人。有没有办法禁用此沙盒模式并将文件保存在~/Downloads目录中以及在尝试发送文件时显示主文件夹时？
拜托，我正在使用 Ubuntu 18.04 LTS，我还很满意。但不幸的是，Telegram 桌面在今天重新启动后停止工作。我真的不知道为什么，因为它在今天之前可以正常工作。
如果我尝试从命令行启动电报，我会收到以下错误消息：
~$ telegram-desktop
QXcbConnection: Could not connect to display :1
Telegram[0x9338cf]
Telegram[0x933e4c]
Telegram(_ZN15google_breakpad16ExceptionHandler12GenerateDumpEPNS0_12CrashContextE+0x382)[0x11d0d0c]
Telegram(_ZN15google_breakpad16ExceptionHandler12HandleSignalEiP9siginfo_tPv+0x1c3)[0x11d08e7]
Telegram(_ZN15google_breakpad16ExceptionHandler13SignalHandlerEiP9siginfo_tPv+0x1ab)[0x11d05ff]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x11390)[0x7f9195a16390]
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7f9195151428]
/lib/x86_64-linux-gnu/libc.so.6(abort+0x16a)[0x7f919515302a]
Telegram[0x1f55117]
Telegram(_ZN14QXcbConnectionC2EP19QXcbNativeInterfacebjPKc+0xe93)[0x1624423]
Telegram(_ZN15QXcbIntegrationC1ERK11QStringListRiPPc+0x2ea)[0x15f907a]
Telegram[0x15f7c4b]
Telegram[0x1e1bc1d]
Telegram[0x1b38bad]
Telegram[0x1b397b5]
Telegram[0x2128295]
Telegram[0x1b3ad8f]
Telegram[0x17f8889]
Telegram(_ZN11ApplicationC2EN3gsl8not_nullIPN4Core8LauncherEEERiPPc+0x3a)[0xfcc76a]
Telegram(_ZN4Core8Launcher18executeApplicationEv+0x3e)[0x93088e]
Telegram(_ZN4Core8Launcher4execEv+0x54)[0x930d14]
Telegram(main+0x32)[0x78a2a2]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7f919513c830]
Telegram(_start+0x29)[0x79b569]
Aborted (core dumped)
事实上，我在使用 gnome-calculator 或 gnome-system-monitor 等 snap 包时遇到了很多问题。此应用程序在正常安装后作为 snap 包交付。但我不认为这个应用程序需要这么快。卸载并安装后正常应用程序正常工作。
但是 Telegram 我无法通过普通应用程序安装，sudo apt install因为它不在标准 ppa 存储库中:( 只有我可以从 Telegram 官方网站下载AppImage。但是 snap 只是废话......（你知道）我建议迁移到 Flatpak .
拜托，你能帮忙看看这个应用程序的 snap 包可能在哪里出现问题吗？
我的 Snap 应用程序：
$ ls -la /snap/
total 40
drwxr-xr-x 9 root root 4096 máj 20 20:16 .
drwxr-xr-x 24 root root 4096 máj 19 22:39 ..
drwxr-xr-x 2 root root 4096 máj 20 20:16 bin
drwxr-xr-x 4 root root 4096 máj 7 19:04 core
drwxr-xr-x 5 root root 4096 máj 9 20:28 gnome-3-26-1604
drwxr-xr-x 4 root root 4096 máj 5 20:54 gnome-characters
drwxr-xr-x 4 root root 4096 máj 5 20:54 gnome-logs
-r--r--r-- 1 root root 548 máj 5 14:08 README
drwxr-xr-x 3 root root 4096 máj 6 09:09 telegram-desktop
drwxr-xr-x 3 root root 4096 máj 20 20:02 vlc
vlc可以正常工作:) 感谢您的任何建议
PS：我尝试通过刷新快照包snap refresh但没有帮助
sudo snap refresh telegram-desktop
snap "telegram-desktop" has no updates available
谢谢您的回复