I have the same problem - at least the same symptoms as the OP when playing MP4 viedos with totem on wayland. My video card is an ATI HD5850 using the radeon driver. The video will play in totem on xorg. It will also play on wayland with mpv or vlc.
The only warning I get from totem is: (totem:7298): Gtk-WARNING **: Drawing a gadget with negative dimensions. Did you forget to allocate a size? (node slider owner GtkScale) but I'm not sure if it is relevant. vainfo output: $ vainfo libva info: VA-API version 0.40.0 libva info: va_getDriverName() returns 0 libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/r600_drv_video.so libva info: Found init function __vaDriverInit_0_40 libva info: va_openDriver() returns 0 vainfo: VA-API version: 0.40 (libva ) vainfo: Driver version: mesa gallium vaapi vainfo: Supported profile and entrypoints VAProfileMPEG2Simple : VAEntrypointVLD VAProfileMPEG2Main : VAEntrypointVLD VAProfileVC1Simple : VAEntrypointVLD VAProfileVC1Main : VAEntrypointVLD VAProfileVC1Advanced : VAEntrypointVLD VAProfileH264ConstrainedBaseline: VAEntrypointVLD VAProfileH264Main : VAEntrypointVLD VAProfileH264High : VAEntrypointVLD VAProfileNone : VAEntrypointVideoProc As I prefer totem over the other players, my current workaround is to fallback to xorg. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to totem in Ubuntu. https://bugs.launchpad.net/bugs/1727210 Title: Totum locks up with 17.10 Status in totem package in Ubuntu: Incomplete Bug description: when trying to play videos in Totum on AMD® E1-6010 apu with amd radeon r2 graphics × 2 (Lenovo), the timer shows it's playing but there is no video. After about 10 seconds I get the "Video is not responding" "what do you want to do" "wait/force close" window. the only way to close it is to force it closed. Same result with MP4 and FLV videos. totum version= 3.26.0-0ubuntu1 Ubuntu 17.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/totem/+bug/1727210/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp