[mythtv-users] AppleTV + Mythbuntu

[H Z]

I've spotted something that might be the issue :

  Attribute 'GPU2DClockFreqs' (appletv:0.0): 200,720.
    The valid values for 'GPU2DClockFreqs' are in the ranges 90 - 720, 180 -
    1100 (inclusive).
    'GPU2DClockFreqs' can use the following target types: X Screen, GPU.

Even though I'm setting the vram speed to 800 with both the nvidia-setting commandline and also in the GUI it doesn't seem to take the vram speed. I've noticed in the GUI nvidia-settings when I set the slider to 800 it goes back to 720 every time when I click apply. 

Might this be causing my stutter? And - how do I get it to accept the setting? Thanks.



From: hansz_2000 at hotmail.com
To: mythtv-users at mythtv.org
Date: Wed, 1 Oct 2008 12:30:49 +0000
Subject: [mythtv-users] AppleTV + Mythbuntu









I wonder if some kind soul here can help me. I've installed a co-exist mythbuntu on my atv and am very close now to having it work for not only SD content but also OTA HD mpeg2 content. The only thing is that when showing 1080 OTA HD it has the slightest of stutters every 2 seconds or so for a fraction of a second. Here's what my cpu/memory usage looks like displaying SD :

5665 hans     20   0  261m  52m  30m S 32.2 21.3  13:30.28 mythfrontend.re
 4829 root      20   0  153m  37m  17m S  2.0 15.3   2:44.78 Xorg

And here's what it is running 1080 HD content :

5665 hans     20   0  349m 142m 110m S 83.7 57.8   5:04.90 mythfrontend.re
 4829 root      20   0  236m 113m  97m S 14.9 46.2   1:11.36 Xorg

I'm also attaching my xorg.conf at the end of this mailing.

I'm using the mythsettings described here :
http://code.google.com/p/atv-bootloader/wiki/mythtv

But it doesn't quite seem to be enough to get the playback smooth. Does anyone have any tips for me to tweak it down a little more and get it running smooth? Thanks in advance.

Hans

My xorg.conf :


# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 1.0  (buildd at vernadsky)  Thu Jun  5 09:26:53 UTC 200
8

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 1.0  (buildmeister at builder3)  Thu Feb 14 18:20:37 PST
 2008

Section "ServerLayout"
        Identifier      "Layout0"
  screen 0 "Screen0" 0 0
        Inputdevice     "Keyboard0"     "CoreKeyboard"
        Inputdevice     "Mouse0"        "CorePointer"
EndSection

Section "Files"
        Fontpath        "/usr/share/fonts/util"
        Fontpath        "/usr/share/fonts/encodings"
        Fontpath        "/usr/share/fonts/misc"
        Fontpath        "/usr/share/fonts/100dpi"
        Fontpath        "/usr/share/fonts/75dpi"
EndSection
Section "Module"
        Load            "ddc"
        Load            "vbe"
        Load            "GLcore"
        Load            "dbe"
        #Load   "dri"
        Load            "extmod"
        Load            "glx"
        Load            "bitmap"
        Load            "type1"
        Load            "freetype"
        Load            "record"
EndSection

Section "ServerFlags"
        Option          "AllowMouseOpenFail"    "true"

EndSection

Section "InputDevice"

        # generated from default
        Identifier      "Mouse0"
        Driver          "mouse"
        Option          "Protocol"      "auto"
        Option          "Device"        "/dev/psaux"
        Option          "Emulate3Buttons"       "no"
        Option          "ZAxisMapping"  "4 5"
EndSection

Section "InputDevice"

        # generated from default
        Identifier      "Keyboard0"
        Driver          "kbd"
EndSection

Section "Monitor"
        Identifier      "Monitor0"
        Vendorname      "Unknown"
        Modelname       "SYN 323-S11"
        Horizsync       30.0    -       85.0
        Vertrefresh     50.0    -       85.0
        Option          "DPMS"
EndSection

Section "Device"
        ### Available Driver options are:-
        # sw_cursor is needed for some ati and radeon cards
        Option          "sw_cursor"
        #Option     "hw_cursor"
        #Option     "NoAccel"
        #Option     "ShowCache"
        #Option     "ShadowFB"
        #Option     "UseFBDev"
        #Option     "Rotate"
        Identifier      "Card0"
        # The following line is auto-generated by x11-misc/mkxf86config
        Driver          "nvidia"
        #Driver      "nv"
        Vendorname      "All"
        Boardname       "All"
        #       BusID       "PCI:1:0:0"
EndSection

Section "Screen"
        Identifier      "Screen0"
        Device          "Videocard0"
        Monitor         "Monitor0"
        Defaultdepth    24
        Option          "NoLogo"        "True"
        Option          "UseEvents"     "True"
        Option          "Coolbits"      "1"
        Option          "TwinView"      "0"
        Option          "metamodes"     "1920x1080 +0+0"
        SubSection "Display"
                Depth   24
        EndSubSection
EndSection

Section "Extensions"
        Option          "Composite"     "Disable"
EndSection


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