[deltazulu]

I have installed ubuntu min 64 13.04 and ran through the instructions on this thread. I am getting audio drop outs every ~90 seconds on 23.976 video when I set XBMC output to either 23.976 or 24.00 Refresh Rate. I have seen this in the past and found a fix in the past with this same PC on a different installation by changing the Settings -> Video Output -> Refresh Rate to 23.976 and/or Settings -> Video Playback -> Adjust display refresh rate to match video ON. Is what is happening just that the conversion from 23.976 film rate to 24p in my display? I verified with my projector it is actually receiving a 24.00Hz signal when I have XBMC set to 23.976. When I was running xbmcbuntu (standard install) I was able to set the refresh rate to 23.976. However, with this new installation following this guide, even when I set the refresh rate to 23.976, my projector is still receiving a 24.00Hz signal. Something is not being done right in the kernel or drivers perhaps to allow the signal to be a true 23.976Hz. I have searched this massive thread and others and have seen others having issues with dropped audio every xx seconds. I don't know if that is the same issue as what I am seeing, but I immediately recognized it when I was testing this new guide and believe this is the issue in my case.

Can anyone tell me where to look or what to change so that my PC will output a true 23.976Hz when I select either of these two settings I listed above?

dmesg: http://paste.ubuntu.com/6321982/
xbmc.log http://paste.ubuntu.com/6321983/
Xorg.0.log http://paste.ubuntu.com/6321984/
vdpauinfo http://paste.ubuntu.com/6321987/
dpkg http://paste.ubuntu.com/6321989

My previous experience is pointing me to something in my xorg.. I see these modes in Xorg.0.log for 1080P:

Code:

24.004] (II) RADEON(0): Modeline "1920x1080"x60.0  148.50  1920 2008 2052 2200  1080 1084 1089 1125 +hsync +vsync (67.5 kHz eP)
24.004] (II) RADEON(0): Modeline "1920x1080"x50.0  148.50  1920 2448 2492 2640  1080 1084 1089 1125 +hsync +vsync (56.2 kHz e)
24.004] (II) RADEON(0): Modeline "1920x1080"x59.9  148.35  1920 2008 2052 2200  1080 1084 1089 1125 +hsync +vsync (67.4 kHz e)
24.004] (II) RADEON(0): Modeline "1920x1080"x24.0   74.25  1920 2558 2602 2750  1080 1084 1089 1125 +hsync +vsync (27.0 kHz e)
24.004] (II) RADEON(0): Modeline "1920x1080"x24.0   74.18  1920 2558 2602 2750  1080 1084 1089 1125 +hsync +vsync (27.0 kHz e)

There is no line for x23.976.. I'm not familiar with this setup though because I do not have an /etc/X11/xorg.conf file to edit.

xrandr output : http://paste.ubuntu.com/6322061 (shows 24P active)

Again, when I have the Refresh Rate set to 60.0 Hz, and am not syncing display to refresh rate of the video, I get flawless audio (even on DTS, DD, or TrueHD). However, the video quality suffers when I use 60Hz since it is converting the video from 23.976 to 60.