升级到18.10后，电报波斯语字体已更改！

升级到18.10后，我的电报字体更改了！有人知道为什么会这样吗？

当我在命令行中打开电报时，出现以下错误：

Fontconfig warning: line 5: unknown element "its:rules"
Fontconfig warning: line 6: unknown element "its:translateRule"
Fontconfig error: line 6: invalid attribute 'translate'
Fontconfig error: line 6: invalid attribute 'selector'
Fontconfig error: line 7: invalid attribute 'xmlns:its'
Fontconfig error: line 7: invalid attribute 'version'
Fontconfig warning: line 9: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/10-hinting-slight.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/10-hinting-slight.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/10-hinting-slight.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/10-hinting-slight.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/10-hinting-slight.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/10-hinting-slight.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/10-hinting-slight.conf", line 8: 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/10-sub-pixel-rgb.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/10-sub-pixel-rgb.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/10-sub-pixel-rgb.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/10-sub-pixel-rgb.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/10-sub-pixel-rgb.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/10-sub-pixel-rgb.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/10-sub-pixel-rgb.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'
Fontconfig error: Cannot load default config file

回答：

我通过将~/.local/share/TelegramDesktop/tdata/fc-custom-1.conf内容更改为来解决了这个问题：

<?xml version='1.0'?>
<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
<fontconfig>
    <dir>/usr/share/fonts</dir>
    <dir>/usr/local/share/fonts</dir>


    <dir>/usr/X11R6/lib/X11/fonts</dir>
    <dir prefix="xdg">fonts</dir>
    <match target="pattern">
        <test qual="any" name="family">
            <string>mono</string>
        </test>
        <edit name="family" mode="assign" binding="same">
            <string>monospace</string>
        </edit>
    </match>
    <match target="pattern">
        <test qual="any" name="family">
            <string>sans serif</string>
        </test>
        <edit name="family" mode="assign" binding="same">
            <string>sans-serif</string>
        </edit>
    </match>
    <match target="pattern">
        <test qual="any" name="family">
            <string>sans</string>
        </test>
        <edit name="family" mode="assign" binding="same">
            <string>sans-serif</string>
        </edit>
    </match>
    <cachedir>/var/cache/fontconfig_11</cachedir>
    <cachedir prefix="xdg">fontconfig_11</cachedir>
    <cachedir>~/.fontconfig_11</cachedir>
    <match target="font">
    <edit mode="assign" name="antialias">
        <bool>true</bool>
    </edit>
    <edit mode="assign" name="embeddedbitmap">
        <bool>false</bool>
    </edit>
    <edit mode="assign" name="hinting">
        <bool>true</bool>
    </edit>
    <edit mode="assign" name="hintstyle">
        <const>hintslight</const>
    </edit>
    <edit mode="assign" name="lcdfilter">
        <const>lcddefault</const>
    </edit>
    <edit mode="assign" name="rgba">
        <const>rgb</const>
    </edit>
    </match>
</fontconfig>

并fonts在fc-custom-1.conf文件旁边创建一个名为目录的目录，并将名为的字体粘贴B_Nazanin_YasDL.com.ttf到该目录中。

将Kubuntu 18.04升级到18.10后，我遇到了完全相同的问题！

为了弄清楚这是什么奇怪的字体，我浏览并发现Telegram使用的是KacstArt字体（可能是因为它是获取所有系统字体时列表中的第一个字体）。

我通过将电报字体搜索路径限制在一个仅包含所需字体的隔离文件夹中解决了我的问题。该过程如下：

1. 有一个字体配置文件~/.local/share/TelegramDesktop/tdata/fc-custom-1.conf打开它。
2. 注释掉所有<dir>和<cachedir>在那里的条目（只需将它们包装在<!--和之间-->）。
3. 在文件的开头添加一个<dir>[your desired folder]</dir>after <fontconfig>，[your desired folder]作为指向仅包含所需字体的自定义文件夹的路径。
   （例如我创建的文件夹中~/.local/share/TelegramDesktop/tdata/myfonts，然后加入tahoma.ttf并tahomab.ttf存在）
4. 重新启动电报并享受。

这是我为波斯语解决的问题的方法：

• 关闭电报
• 创建目录： ~/.fonts
• 添加具有不同粗细的字体[我使用过Vazir ]
• 创建文件：~/.fonts.conf并将以下行添加到其中：

<?xml version='1.0'?>
<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
<fontconfig>
    <match target="pattern">
        <test name="family" qual="any">
            <string>sans serif</string>
        </test>
        <edit mode="assign" binding="same" name="family">
            <string>Vazir</string>
        </edit>
    </match>
    <dir>~/.fonts</dir>
</fontconfig>

• 清除字体缓存：

fc-cache -f -v

rm -r ~/.cache/fontconfig_11

• 现在打开Telegram :)

只需将其删除并从Ubuntu存档中安装即可。

sudo apt install snapd

sudo snap install telegram-desktop

只需在终端中键入以下命令即可删除此文件：

killall Telegram && rm -rf ~/.local/share/TelegramDesktop/tdata/fc-custom-1.conf

更新：由于电报1.8.4没有fc-custom-1.conf文件，因此这是另一种解决方案（假设电报二进制文件位于中/opt/Telegram/Telegram）：

1. 为电报字体创建一个配置文件（路径是可选的）：

   touch ~/.local/share/TelegramDesktop/fonts.conf
   

   并添加以下行：

   <?xml version='1.0'?>
   <!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
   <fontconfig>
   
    <match>
     <edit mode="prepend" name="family">
      <string>Vazir</string>
     </edit>
    </match>
   
    <dir>~/.local/share/fonts</dir>
    <dir>/usr/share/fonts/</dir>
   
   </fontconfig>

   我使用了Vazir字体，如果要使用其他字体（例如Tahoma），则必须将更<string>Vazir</string>改为<string>Tahoma</string>。

2. 将.desktop位于的电报文件修改~/.local/share/applications/telegramdesktop.desktop为：

   [Desktop Entry]
   Version=1.0
   Name=Telegram Desktop
   Comment=Official desktop application for the Telegram messaging service
   TryExec=/opt/Telegram/Telegram
   Exec=env FONTCONFIG_FILE=~/.local/share/TelegramDesktop/fonts.conf /opt/Telegram/Telegram -- %u
   Icon=telegram
   Terminal=false
   StartupWMClass=TelegramDesktop
   Type=Application
   Categories=Network;InstantMessaging;Qt;
   MimeType=x-scheme-handler/tg;
   Keywords=tg;chat;im;messaging;messenger;sms;tdesktop;
   X-GNOME-UsesNotifications=true
   X-Desktop-File-Install-Version=0.23
   

3. 将您的字体放在中~/.local/share/fonts。

关闭电报应用

将字体复制到目录中（例如cp Tahome.ttf /home/alice/Telegram）

vim ~/.local/share/TelegramDesktop/tdata/fc-custom-1.conf 

移除所有 <dir> </dir>

加一 <dir>path_to_your_font_dir</dir>

然后将所有字体名称更改为您的字体名称。

我的配置像：

<?xml version='1.0'?>
<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
<fontconfig>
        <dir>/home/alice/Telegram</dir>
        <dir prefix="xdg">fonts</dir>
        <match target="pattern">
                <test qual="any" name="family">
                        <string>Tahoma</string>
                </test>
                <edit name="family" mode="assign" binding="same">
                        <string>Tahoma</string>
                </edit>
        </match>
        <cachedir>/var/cache/fontconfig_11</cachedir>
        <cachedir prefix="xdg">fontconfig_11</cachedir>
        <cachedir>~/.fontconfig_11</cachedir>
        <match target="font">
        <edit mode="assign" name="antialias">
                <bool>true</bool>
        </edit>
        <edit mode="assign" name="embeddedbitmap">
                <bool>false</bool>
        </edit>
        <edit mode="assign" name="hinting">
                <bool>true</bool>
        </edit>
        <edit mode="assign" name="hintstyle">
                <const>hintslight</const>
        </edit>
        <edit mode="assign" name="lcdfilter">
                <const>lcddefault</const>
        </edit>
        <edit mode="assign" name="rgba">
                <const>rgb</const>
        </edit>
        </match>
</fontconfig>

然后

fc-cache -f -v
rm -r ~/.cache/fontconfig_11

打开电报应用程序:-)

尼玛说的话可以用，但是最好的方法是安装电报的snap或flatpak版本。

首先清除当前安装：

sudo apt purge telegram-desktop

然后删除以下文件夹：

sudo rm -rf ~/.local/share/TelegramDesktop

那么您可以简单地执行以下操作：

sudo apt install snapd && sudo snap install telegram-desktop

只需安装诸如Shabnam的波斯字体或您喜欢的任何其他波斯字体，然后重新启动系统即可。