Do you by chance still have that gentoo install around somewhere to try to further fine tune the comparison between the configs? There is a handful of options in the mythtv database, nvidia settings rc, versions, compile flags, tons of stuff that can boil down to be the root cause here.
If not, would you have a second hard drive that you could drop gentoo back on to try to help isolate the exact issue? On Wed, Jul 16, 2008 at 15:30, Vanessa Ezekowitz <[EMAIL PROTECTED]> wrote: > Public bug reported: > > Background: > > I just recently switched from Gentoo to Ubuntu Hardy, and have run into > a few problems here and there. Most of them I have already solved, but > at least one has me stumped: mythtv. I am currently using mythtv 0.21 > as supplied by the Ubuntu repositories. My capture card, a Kworld > ATSC-120, requires drivers from the linuxtv.org v4l-dvb repository. > Thus, I picked up the latest kernel (2.6.25.2), and built it using the > config file I was using in Gentoo. As I expected, the kernel works fine > (including SMP support, as usual), and I can access my capture card > through the DVB interface thanks to that v4l-dvb driver. > > With that "custom" kernel being in place, I fetched the latest nVidia > driver (173.14.09) from nvidia.com and installed it, figuring that the > one in the Ubuntu repository would insist on building against an Ubuntu > kernel rather than my "custom" one. As expected, the nVidia driver > seems to work as it always has. OpenGL apps like Google Earth behave > normally, 2D accel seems to work, and video-playing apps seem to work > fine (as far as I can tell anyway).... Except mythtv. > > My machine is based around an AMD 64x2 3800+ CPU with 1GB of RAM, a > reasonably fast SATA hard disk (actual speeds of close to 50 MB/sec on > writes, and upwards of 60 MB/sec reads), and an nVidia GeForce 6800 > video card. > > As per information I've read elsewhere, I have already edited > /etc/X11/XvMCConfig so that it contains only this one line: > > libXvMCNVIDIA_dynamic.so.1 > > If I do not change this from the default, I see an error about a missing > symbol (probably generated by ld rather than mythfrontend), but as that > has already been covered elsewhere, it need not be further addressed > here. > > On this setup, every type of standard-definition-sized video that I've > tried seems to work fine in xine and mplayer, using about 20% of one > core even at full screen. Ditto for my husband's box, which is > identical but with a slower video card (an nVidia MX4000). > > In order to play high definition video (i.e. from the ATSC side of my > capture card), with mythtv, I need to use the "Standard XvMC" decoders, > with the "xvmc-blit" video renderer, "ia44blend" for the OSD renderer > (since nVidia dropped support for chromakeys), and bob deinterlacing. > If I allow MythTV to use only one core for the decoder, the video > stutters badly, the audio is choppy, and the actual video content is > mildly corrupted near the bottom... a sort of "stretching" effect that > looks like it only affects one of the two fields, similar to what you > get if you play a VHS video tape with the tracking slightly off. The > console output from the program in this instance looks like this: > > ========== > [EMAIL PROTECTED]:~$ mythfrontend > 2008-07-16 15:11:54.932 Using runtime prefix = /usr, libdir = /usr/lib > 2008-07-16 15:11:56.356 XScreenSaver support enabled > 2008-07-16 15:11:56.356 DPMS is disabled. > 2008-07-16 15:11:56.357 Empty LocalHostName. > 2008-07-16 15:11:56.357 Using localhost value of rainbird > 2008-07-16 15:11:56.377 New DB connection, total: 1 > 2008-07-16 15:11:56.385 Connected to database 'mythconverg' at host: > localhost > 2008-07-16 15:11:56.387 Closing DB connection named 'DBManager0' > 2008-07-16 15:11:56.389 Total desktop dim: 2560x1024, over 2 screen[s]. > 2008-07-16 15:11:56.390 Screen 0 dim: 1280x1024. > 2008-07-16 15:11:56.390 Screen 1 dim: 1280x1024. > 2008-07-16 15:11:56.390 Primary screen 0. > 2008-07-16 15:11:56.390 Connected to database 'mythconverg' at host: > localhost > 2008-07-16 15:11:56.394 Running in a window > 2008-07-16 15:11:56.394 Using screen 1, 1280x1024 at 1280,0 > 2008-07-16 15:11:56.411 New DB connection, total: 2 > 2008-07-16 15:11:56.412 Connected to database 'mythconverg' at host: > localhost > 2008-07-16 15:11:56.419 mythfrontend version: 0.21.20080304-1 > www.mythtv.org > 2008-07-16 15:11:56.420 Enabled verbose msgs: important general > 2008-07-16 15:11:56.553 Unable to parse themeinfo.xml for glass-wide > 2008-07-16 15:11:56.554 The theme (glass-wide) is missing a themeinfo.xml > file > 2008-07-16 15:11:56.840 Unable to parse themeinfo.xml for glass-wide > 2008-07-16 15:11:56.841 The theme (glass-wide) is missing a themeinfo.xml > file > 2008-07-16 15:11:57.323 Total desktop dim: 2560x1024, over 2 screen[s]. > 2008-07-16 15:11:57.323 Screen 0 dim: 1280x1024. > 2008-07-16 15:11:57.323 Screen 1 dim: 1280x1024. > 2008-07-16 15:11:57.323 Primary screen 0. > 2008-07-16 15:11:57.324 Running in a window > 2008-07-16 15:11:57.324 Using screen 1, 1280x1024 at 1280,0 > 2008-07-16 15:11:57.329 Switching to square mode (MythCenter) > 2008-07-16 15:11:57.373 Using the OpenGL painter > 2008-07-16 15:11:57.374 JoystickMenuClient Error: Joystick disabled - > Failed to read /home/vanessa/.mythtv/joystickmenurc > mythtv: could not connect to socket > mythtv: No such file or directory > 2008-07-16 15:11:57.374 lirc_init failed for mythtv, see preceding messages > 2008-07-16 15:11:59.528 Loading from: > /usr/share/mythtv/themes/MythCenter/base.xml > 2008-07-16 15:11:59.612 Loading from: > /usr/share/mythtv/themes/default/base.xml > 2008-07-16 15:11:59.694 Registering Internal as a media playback plugin. > 2008-07-16 15:12:00.440 Using NV NPOT texture extension > 2008-07-16 15:12:03.384 Connecting to backend server: 127.0.0.1:6543 (try > 1 of 5) > 2008-07-16 15:12:03.386 Using protocol version 40 > 2008-07-16 15:12:03.396 TV: Attempting to change from None to > WatchingLiveTV > 2008-07-16 15:12:03.397 Using protocol version 40 > 2008-07-16 15:12:04.560 New DB connection, total: 3 > 2008-07-16 15:12:04.561 Connected to database 'mythconverg' at host: > localhost > 2008-07-16 15:12:04.604 NVP: Disabling Audio, params(-1,2,44100) > 2008-07-16 15:12:04.648 VideoOutputXv: Desired video renderer 'xvmc-blit' > not available. > codec 'None' makes 'xv-blit,xshm,opengl,xlib,' > available, using 'xv-blit' instead. > 2008-07-16 15:12:04.652 VideoOutputXv: XVideo Adaptor Name: 'NV17 Video > Texture' > 2008-07-16 15:12:04.727 OSD Theme Dimensions W: 640 H: 480 > 2008-07-16 15:12:05.247 TV: Changing from None to WatchingLiveTV > 2008-07-16 15:12:05.255 Realtime priority would require SUID as root. > 2008-07-16 15:12:05.354 OpenGLVideoSync() > 2008-07-16 15:12:05.657 Video timing method: SGI OpenGL > 2008-07-16 15:12:07.548 VideoOutputXv: XvMC Adaptor Name: 'NV17 Video > Texture' > 2008-07-16 15:12:07.927 VideoOutputXv: ProcessFrameXvMC: Tried to reuse > frame but failed > 2008-07-16 15:12:07.928 VideoOutputXv: ProcessFrameXvMC: Called without > frame > 2008-07-16 15:12:07.928 AFD: Opened codec 0x9a371e0, id(MPEG2VIDEO_XVMC) > type(Video) > 2008-07-16 15:12:07.928 AFD: codec AC3 has 6 channels > 2008-07-16 15:12:07.930 AFD: Opened codec 0x9a37550, id(AC3) type(Audio) > 2008-07-16 15:12:08.021 Opening audio device 'default'. ch 2(2) sr 48000 > 2008-07-16 15:12:08.021 Opening ALSA audio device 'default'. > 2008-07-16 15:12:08.057 NVP: Enabling Audio > 2008-07-16 15:12:08.086 XvMC: picture structure FRAME > 2008-07-16 15:12:08.289 NVP: prebuffering pause > 2008-07-16 15:12:08.371 NVP: prebuffering pause > 2008-07-16 15:12:08.446 WriteAudio: buffer underrun > 2008-07-16 15:12:08.454 NVP: prebuffering pause > > [deleted a bunch of exact repeats] > > 2008-07-16 15:12:10.520 NVP: prebuffering pause > 2008-07-16 15:12:10.547 WriteAudio: buffer underrun > 2008-07-16 15:12:11.412 TV: Attempting to change from WatchingLiveTV to > None > 2008-07-16 15:12:11.421 ~OpenGLVideoSync() -- begin > 2008-07-16 15:12:11.422 ~OpenGLVideoSync() -- middle > 2008-07-16 15:12:11.423 ~OpenGLVideoSync() -- end > 2008-07-16 15:12:11.854 TV: Changing from WatchingLiveTV to None > 2008-07-16 15:13:06.381 Deleting UPnP client... > ========== > > However, if I allow two cores, with no other changes whatsoever, and > then "Watch TV" again, it goes to the video display, displays the OSD, > waits a moment while it acquires a channel lock, blacks the window > again, and then segfaults, without ever displaying even one frame from > the video stream. Here is the output from the controlling terminal in > this case: > > ========== > [EMAIL PROTECTED]:~$ mythfrontend > 2008-07-16 14:41:35.352 Using runtime prefix = /usr, libdir = /usr/lib > 2008-07-16 14:41:36.776 XScreenSaver support enabled > 2008-07-16 14:41:36.777 DPMS is active. > 2008-07-16 14:41:36.777 Empty LocalHostName. > 2008-07-16 14:41:36.778 Using localhost value of rainbird > 2008-07-16 14:41:36.796 New DB connection, total: 1 > 2008-07-16 14:41:36.803 Connected to database 'mythconverg' at host: > localhost > 2008-07-16 14:41:36.806 Closing DB connection named 'DBManager0' > 2008-07-16 14:41:36.808 Total desktop dim: 2560x1024, over 2 screen[s]. > 2008-07-16 14:41:36.808 Screen 0 dim: 1280x1024. > 2008-07-16 14:41:36.809 Screen 1 dim: 1280x1024. > 2008-07-16 14:41:36.809 Primary screen 0. > 2008-07-16 14:41:36.809 Connected to database 'mythconverg' at host: > localhost > 2008-07-16 14:41:36.813 Running in a window > 2008-07-16 14:41:36.813 Using screen 1, 1280x1024 at 1280,0 > 2008-07-16 14:41:36.834 New DB connection, total: 2 > 2008-07-16 14:41:36.836 Connected to database 'mythconverg' at host: > localhost > 2008-07-16 14:41:36.840 mythfrontend version: 0.21.20080304-1 > www.mythtv.org > 2008-07-16 14:41:36.840 Enabled verbose msgs: important general > 2008-07-16 14:41:36.971 Unable to parse themeinfo.xml for glass-wide > 2008-07-16 14:41:36.971 The theme (glass-wide) is missing a themeinfo.xml > file > 2008-07-16 14:41:37.262 Unable to parse themeinfo.xml for glass-wide > 2008-07-16 14:41:37.262 The theme (glass-wide) is missing a themeinfo.xml > file > 2008-07-16 14:41:37.746 Total desktop dim: 2560x1024, over 2 screen[s]. > 2008-07-16 14:41:37.747 Screen 0 dim: 1280x1024. > 2008-07-16 14:41:37.747 Screen 1 dim: 1280x1024. > 2008-07-16 14:41:37.747 Primary screen 0. > 2008-07-16 14:41:37.748 Running in a window > 2008-07-16 14:41:37.748 Using screen 1, 1280x1024 at 1280,0 > 2008-07-16 14:41:37.753 Switching to square mode (MythCenter) > 2008-07-16 14:41:37.797 Using the OpenGL painter > 2008-07-16 14:41:37.798 JoystickMenuClient Error: Joystick disabled - > Failed to read /home/vanessa/.mythtv/joystickmenurc > mythtv: could not connect to socket > mythtv: No such file or directory > 2008-07-16 14:41:37.798 lirc_init failed for mythtv, see preceding messages > 2008-07-16 14:41:39.979 Loading from: > /usr/share/mythtv/themes/MythCenter/base.xml > 2008-07-16 14:41:40.071 Loading from: > /usr/share/mythtv/themes/default/base.xml > 2008-07-16 14:41:40.147 Registering Internal as a media playback plugin. > 2008-07-16 14:41:40.884 Using NV NPOT texture extension > 2008-07-16 14:41:42.272 Connecting to backend server: 127.0.0.1:6543 (try > 1 of 5) > 2008-07-16 14:41:42.273 Using protocol version 40 > 2008-07-16 14:41:42.288 TV: Attempting to change from None to > WatchingLiveTV > 2008-07-16 14:41:42.290 Using protocol version 40 > 2008-07-16 14:41:43.642 DPMS Deactivated > 2008-07-16 14:41:43.644 New DB connection, total: 3 > 2008-07-16 14:41:43.645 Connected to database 'mythconverg' at host: > localhost > 2008-07-16 14:41:43.678 NVP: Disabling Audio, params(-1,2,44100) > 2008-07-16 14:41:43.719 VideoOutputXv: Desired video renderer 'xvmc-blit' > not available. > codec 'None' makes 'xv-blit,xshm,opengl,xlib,' > available, using 'xv-blit' instead. > 2008-07-16 14:41:43.723 VideoOutputXv: XVideo Adaptor Name: 'NV17 Video > Texture' > 2008-07-16 14:41:43.787 OSD Theme Dimensions W: 640 H: 480 > 2008-07-16 14:41:44.482 TV: Changing from None to WatchingLiveTV > 2008-07-16 14:41:44.490 Realtime priority would require SUID as root. > 2008-07-16 14:41:44.590 OpenGLVideoSync() > 2008-07-16 14:41:44.894 Video timing method: SGI OpenGL > 2008-07-16 14:41:47.522 VideoOutputXv: XvMC Adaptor Name: 'NV17 Video > Texture' > 2008-07-16 14:41:48.176 VideoOutputXv: ProcessFrameXvMC: Tried to reuse > frame but failed > 2008-07-16 14:41:48.176 VideoOutputXv: ProcessFrameXvMC: Called without > frame > 2008-07-16 14:41:48.213 AFD Error: Could not open codec 0x93edca0, > id(MPEG2VIDEO_XVMC) type(Video) aborting. reason -1 > Segmentation fault > ========== > > This all used to work fine within Gentoo, using about 65-70% of total > CPU (across both cores) to watch a full 1920x1080i stream with no > crashes. > > I can freely switch between one or two cores and repeat these two > different error conditions with 100% reliability. > > What should happen: > > The video stream should play normally and mythfrontend shouldn't > segfault :-) > > ** Affects: mythtv (Ubuntu) > Importance: Undecided > Status: New > > -- > Segfault on XvMC + SMP (if two or more cores are enabled) > https://bugs.launchpad.net/bugs/249203 > You received this bug notification because you are a member of MythTV > Ubuntu Maintainers, which is subscribed to mythtv in ubuntu. > -- Mario Limonciello [EMAIL PROTECTED] -- Segfault on XvMC + SMP (if two or more cores are enabled) https://bugs.launchpad.net/bugs/249203 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
