我的 Steam 似乎已经完全无法使用：如果我尝试打开它，图标会闪烁几秒钟，之后什么都没有发生。如果我尝试卸载它（Ubuntu 图标 >> 搜索“Steam” >> 右键 >> 卸载），也没有结果。
我对 Ubuntu 还很陌生，最近我将其升级到了最新版本，以为这是正确的做法，但我不知道事实是否如此。你们有人知道如何解决这个问题吗？
编辑：
谢谢你们的回复。
我尝试在终端上输入“steam”。然后出现了一堆消息，它升级了 Steam（我认为）并打开了它。我关闭了所有内容并重新启动了计算机。现在我可以打开 Steam，但每次我这样做时都会弹出一条警告：
home/egavs/.local/share/Steam/ubuntu12_32/steam-runtime/amd64/lib/x86_64-linux-genu/libtinfo.so.5: no version information available (required by bash)
Your steam package is out of date. Please get an updated version from your package provider or directly from http://repo.steampowered.com/steam for supported distributions.
Press enter to continue
当我按下 Enter 时，消息关闭。Steam 有点慢，有时甚至无法连接到网络。此外，我仍然无法以第一次尝试的方式卸载它。当我lspci | grep VGA在终端中输入时，什么都没有显示出来。当我现在在终端上输入“steam”时，Steam 会打开并出现以下内容（SPM 是我的计算机名称）：
egavs@SPM:/$ steam
Running Steam on ubuntu 16.04 64-bit
STEAM_RUNTIME is enabled automatically
/bin/bash: /home/egavs/.local/share/Steam/ubuntu12_32/steam-runtime/amd64/lib/x86_64-linux-gnu/libtinfo.so.5: no version information available (required by /bin/bash)
grep: symbol lookup error: grep: undefined symbol: pcre_jit_stack_alloc
grep: symbol lookup error: grep: undefined symbol: pcre_jit_stack_alloc
grep: symbol lookup error: grep: undefined symbol: pcre_jit_stack_alloc
Installing breakpad exception handler for appid(steam)/version(1465948400)
Installing breakpad exception handler for appid(steam)/version(1465948400)
Gtk-Message: Failed to load module "gail"
Gtk-Message: Failed to load module "atk-bridge"
Gtk-Message: Failed to load module "unity-gtk-module"
Installing breakpad exception handler for appid(steam)/version(1465948400)
Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 72: non-double matrix element
Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 72: non-double matrix element
Fontconfig warning: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 80: saw unknown, expected number
[0706/231122:ERROR:main_delegate.cc(779)] Could not load cef_extensions.pak
[0706/231122:ERROR:browser_main_loop.cc(217)] Running without the SUID sandbox! See https://chromium.googlesource.com/chromium/src/+/master/docs/linux_suid_sandbox_development.md for more information on developing with the sandbox on.
Installing breakpad exception handler for appid(steamwebhelper)/version(20160614232302)
Installing breakpad exception handler for appid(steamwebhelper)/version(1465946582)
[0706/231122:ERROR:main_delegate.cc(779)] Could not load cef_extensions.pak
Installing breakpad exception handler for appid(steamwebhelper)/version(20160614232302)
Installing breakpad exception handler for appid(steamwebhelper)/version(1465948400)
Installing breakpad exception handler for appid(steamwebhelper)/version(1465948400)
Installing breakpad exception handler for appid(steam)/version(1465948400)
Installing breakpad exception handler for appid(steam)/version(1465948400)
Installing breakpad exception handler for appid(steam)/version(1465948400)
Installing breakpad exception handler for appid(steam)/version(1465948400)
Installing breakpad exception handler for appid(steam)/version(1465948400)
Installing breakpad exception handler for appid(steam)/version(1465948400)
Created shared memory when not owner SteamController_Shared_mem
Installing breakpad exception handler for appid(steam)/version(1465948400)
Installing breakpad exception handler for appid(steam)/version(1465948400)
** (steam:4043): WARNING **: Unknown device type 14
** (steam:4043): WARNING **: Could not create object for /org/freedesktop/NetworkManager/Devices/1: unknown object type
Installing breakpad exception handler for appid(steam)/version(1465948400)
** (steam:4043): WARNING **: Ignoring invalid property 'secondaries'
** (steam:4043): WARNING **: Ignoring invalid property 'autoconnect-priority'
** (steam:4043): WARNING **: Ignoring invalid property 'route-data'
** (steam:4043): WARNING **: Ignoring invalid property 'address-data'
** (steam:4043): WARNING **: Ignoring invalid property 'route-data'
** (steam:4043): WARNING **: Ignoring invalid property 'address-data'
Generating new string page texture 2: 48x256, total string texture memory is 49,15 KB
Generating new string page texture 3: 384x256, total string texture memory is 442,37 KB
Installing breakpad exception handler for appid(steam)/version(1465948400)
Installing breakpad exception handler for appid(steam)/version(1465948400)
roaming config store loaded successfully - 619 bytes.
migrating temporary roaming config store
Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 72: non-double matrix element
Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 72: non-double matrix element
Fontconfig warning: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 80: saw unknown, expected number
Installing breakpad exception handler for appid(steam)/version(1465948400)
Failed to init SteamVR because it isn't installed
ExecCommandLine: ""/home/egavs/.local/share/Steam/ubuntu12_32/steam" "
Installing breakpad exception handler for appid(steam)/version(1465948400)
System startup time: 4,04 seconds
bash: /home/egavs/.local/share/Steam/ubuntu12_32/steam-runtime/amd64/lib/x86_64-linux-gnu/libtinfo.so.5: no version information available (required by bash)
grep: symbol lookup error: grep: undefined symbol: pcre_jit_stack_alloc
grep: symbol lookup error: grep: undefined symbol: pcre_jit_stack_alloc
grep: symbol lookup error: grep: undefined symbol: pcre_jit_stack_alloc
Warning: Your steam package is out of date. Please get an updated version from your package provider or directly from http://repo.steampowered.com/steam for supported distributions.
Generating new string page texture 73: 256x256, total string texture memory is 704,51 KB
Generating new string page texture 74: 128x256, total string texture memory is 835,58 KB
Generating new string page texture 75: 128x256, total string texture memory is 131,07 KB
Generating new string page texture 76: 64x256, total string texture memory is 901,12 KB
Generating new string page texture 77: 32x256, total string texture memory is 933,89 KB
Running Steam on ubuntu 16.04 64-bit
STEAM_RUNTIME has been set by the user to: /home/egavs/.local/share/Steam/ubuntu12_32/steam-runtime
/bin/bash: /home/egavs/.local/share/Steam/ubuntu12_32/steam-runtime/amd64/lib/x86_64-linux-gnu/libtinfo.so.5: no version information available (required by /bin/bash)
grep: symbol lookup error: grep: undefined symbol: pcre_jit_stack_alloc
grep: symbol lookup error: grep: undefined symbol: pcre_jit_stack_alloc
grep: symbol lookup error: grep: undefined symbol: pcre_jit_stack_alloc
/usr/bin/ldd: line 119: printf: write error: Broken pipe
ExecCommandLine: "/home/egavs/.steam/root/ubuntu12_32/steam steam://open/driverhelperready"
ExecSteamURL: "steam://open/driverhelperready"
我是否应该下载其中一个建议的软件包？它们似乎不适用于 16.04 版本。
答案1
谢谢大家。问题现在已经解决了。
我已经重新安装了 Steam，并按照此处的建议进行操作：Steam 无法在 Ubuntu 16.04 LTS 中打开
如果你刚刚安装了 Steam，请转到~/.steam/steam/ubuntu12_32/steam-runtime/i386/usr/lib/i386-linux-gnu/并删除该链接libstdc++.so.6。然后它应该可以正常启动。
Steam 现在运行良好，没有延迟或错误消息。
如果我发错了地方，请见谅，我对这个论坛和 Ubuntu 都很陌生。但我越来越习惯它了。