方法
VLCの「設定」→「オーディオ」→「出力モジュール」でALSAから「Pulseaudio出力」に変更。これで、正常に音声が再生されるようになった。同じ時期にgnome3.10へのアップデートもあったので、それが原因であった可能性もある。参考:
[1] [solved] vlc has a lot of noise when playing wmv
Section "Device" Identifier "Intel Graphics" Driver "intel" Option "AccelMethod" "sna" Option "TearFree" "true" EndSection
Section "Device" Identifier "Intel Graphics" Driver "intel" Option "AccelMethod" "sna" Option "TearFree" "true" EndSection
Section "Device" Identifier "Intel Graphics" Driver "intel" Option "AccelMethod" "uxa" Option "TearFree" "true" EndSection
$ yaourt -S xf86-video-intel-git
... at System.AppDomain.ExecuteAssembly (string) <0x0001c> at (wrapper remoting-invoke-with-check) System.AppDomain.ExecuteAssembly (string) <0xffffffff> at Booter.Booter.BootClient (string) <0x00092> at Booter.Booter.Main () <0x001e3> at (wrapper runtime-invoke) object.runtime_invoke_void (object,intptr,intptr,intptr) <0xffffffff> Native stacktrace: banshee() [0x4b2f41] banshee() [0x509a2b] banshee() [0x422752] /usr/lib/libpthread.so.0(+0xf870) [0x7f900d7a0870] banshee() [0x5f6f1d] banshee() [0x5d3b0f] banshee() [0x5d98ce] banshee() [0x5d9d89] banshee() [0x5ef779] banshee() [0x5ef834] banshee(mono_object_clone+0x26) [0x5b1fb6] [0x40d3b066] Debug info from gdb: ================================================================= Got a SIGSEGV while executing native code. This usually indicates a fatal error in the mono runtime or one of the native libraries used by your application. ================================================================= [1]+ Aborted (core dumped) banshee
$ yaourt -S mono-git
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