Video won't playback after upgrade to 0.27

[skd5aner@…]

After upgrading to 0.27-fixes today (latest RC - v0.27-RC1-47-g783944e), I'm no longer able to playback any video.

When I launch a video or recording (I've tried several different video formats) I get a "Please Wait..." dialog over the menu screen, and nothing else - it just hangs. Occasionally, I'll get a very small blip of audio. The last thing that just repeats over and over at the end of mythfrontend -v playback is:

Decoder mythplayer.cpp:3319 (DecoderGetFrame) - Player(0): Decoder timed out waiting for free video buffers.

Attached is one of my logs with mythfrontend -v playback. I've tried vdpau and ffmpeg standard xv-blit decoding, same results. I've also tried multiple deinterlacers, as well as interlaced and progressive content.

I also tried the version of the nvidia driver that had worked for months on 0.26-fixes as well as upgrading to the latest version of the nvidia driver.

[stuartm]

There does appear to be a driver problem here, I suspect it's not installed or configured properly. Log shows "OpenGL: OpenGL is using software rendering" at which point it falls back to using the QT painter.

Can you add the driver versions tried and the output of "nvidia-settings -g" to the ticket? Which distro and version are you using? Is the nvidia driver installed from packages or using their installer?

[stuartm]

To anyone affected by this issue, for now you can work around it by disabling Interactive TV (MHEG). We are very close to a fix but as no dev can reproduce currently progress has been slowed right down.

[Stuart Morgan <smorgan@…>]

In a2aa58124f68f6a87076e61ae1d4d175929fd6fb/mythtv:

Revert "MHEG: Fixes for InteractionChannel? streaming from network URI's"

This broke playback of all videos for a number of people. It seems
like there was probably a deadlock somewhere in the mhi code on
startup. Reverting the whole thing since this has such a serious
impact, but it may be re-applied later when we've identified and fixed
the issue.

Fixes #11831

This reverts commit ea77f42462bd1055578131fb64e1586563db9442.

[Stuart Morgan <smorgan@…>]

In 5b6f3225b8ec7e2430e6563cbbde6a4c25665433/mythtv:

Revert "MHEG: Fixes for InteractionChannel? streaming from network URI's"

Breaks playback of all video for some people, probably a deadlock in
the MHI code on startup. Will reapply at a later date when we've found
the source of the issue.

Refs #11831

This reverts commit ea77f42462bd1055578131fb64e1586563db9442.

[skd5aner <skd5aner@…>]

As requested in IRC, a backtrace is now attached for version: v0.27-RC1-47-g783944e. I hit ctrl-C during the hang.

Also, if it helps, I'm running:

• Ubuntu 12.10 server (not mythbuntu)
• Stock 3.5.0-40-generic kernel
• nvidia driver version 325.15 (and 313.30 originally). Installed from their installer script. OpenGL works fine from various tests.

[skd5aner <skd5aner@…>]

Sorry - to clarify - OpenGL works fine outside of MythTV from various tests. Video Playback did fail with any renderer (Xv, VDPAU, and OpenGL).