[mythtv] New Fast Machine -- Choppy Video Problems

[Jeremy Oddo]

Well, I had a lot of problems getting my cheap Athlon-1800XP to work
(on-board video problems, on-board sound problems) so I decided to go out
and get a real machine :)  A Pentium4 2.4GHz with 512MB of fast RAM and an
NVidia GeForce4 MX-440.

Installation was a snap (after I got the correct NVidia drivers), however,
I'm getting jittery video even at 320x240.  My Athlon-1800XP was able to
do 640x480 without ANY problems.

I've seen a couple posts in the archives about this (and everyone seems to
be using NVidia cards...can this be the problem?)  I haven't found any
answers thought.  Here's my info:


 - What codec are you using?
Tried rtjpeg and mpeg4...rtjpeg actually performed WORSE!

 - Are you using the nvidia binary driver?
No.  I'm using the nvidia module

 - Is your mysql colocated on the server with mythtv?
Yes.

 - What is your disk speed?  7200?  5400?  Other?
7200 RPM

 - What is your disk buffer size?  2MB?  Other?
   [ cat /proc/ide/hda/cache ]
2MB

 - What are your dma, multcount, and prefetch settings?
   [ hdparm /dev/hda ]


 - What are your "elevator" settings? [ elvtune /dev/hda1 ]/dev/hda1
elevator ID			0
	read_latency:		8192
	write_latency:		16384
	max_bomb_segments:	0


 - What is your CPU and bus speed? [ cat /proc/cpuinfo ]
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 2
model name	: Intel(R) Pentium(R) 4 CPU 2.40GHz
stepping	: 4
cpu MHz		: 2394.759
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat
pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
bogomips	: 4784.12


 - What is your memory type, speed, configuration, and size?
1 512MB DDR RAM stick. CAS 2.5 333MHz.

 - What is your motherboard chipset? [ a function of `cat /proc/pci` ]
PCI devices found:
  Bus  0, device   0, function  0:
    Host bridge: PCI device 1039:0645 (Silicon Integrated Systems [SiS])
(rev 2).
      Master Capable.  Latency=32.
      Non-prefetchable 32 bit memory at 0xe0000000 [0xe3ffffff].
  Bus  0, device   1, function  0:
    PCI bridge: Silicon Integrated Systems [SiS] 5591/5592 AGP (rev 0).
      Master Capable.  Latency=64.  Min Gnt=14.
  Bus  0, device   2, function  0:
    ISA bridge: Silicon Integrated Systems [SiS] 85C503/5513 (rev 0).
  Bus  0, device   2, function  2:
    USB Controller: Silicon Integrated Systems [SiS] 7001 (rev 7).
      IRQ 10.
      Master Capable.  Latency=32.  Max Lat=80.
      Non-prefetchable 32 bit memory at 0xe7003000 [0xe7003fff].
  Bus  0, device   2, function  3:
    USB Controller: Silicon Integrated Systems [SiS] 7001 (#2) (rev 7).
      IRQ 11.
      Master Capable.  Latency=32.  Max Lat=80.
      Non-prefetchable 32 bit memory at 0xe7004000 [0xe7004fff].
  Bus  0, device   2, function  5:
    IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev 208).
      Master Capable.  Latency=128.
      I/O at 0xf000 [0xf00f].
  Bus  0, device   3, function  0:
    Ethernet controller: Silicon Integrated Systems [SiS] SiS900 10/100
Ethernet (rev 144).
      IRQ 10.
      Master Capable.  Latency=32.  Min Gnt=52.Max Lat=11.
      I/O at 0xc000 [0xc0ff].
      Non-prefetchable 32 bit memory at 0xe7002000 [0xe7002fff].
  Bus  0, device   8, function  0:
    Network controller: PCI device 14e4:4301 (BROADCOM Corporation) (rev 2).
      IRQ 5.
      Master Capable.  Latency=32.
      Non-prefetchable 32 bit memory at 0xe7000000 [0xe7001fff].
  Bus  0, device  10, function  0:
    Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 7).
      IRQ 9.
      Master Capable.  Latency=32.  Min Gnt=2.Max Lat=20.
      I/O at 0xc400 [0xc41f].
  Bus  0, device  10, function  1:
    Input device controller: Creative Labs SB Live! MIDI/Game Port (rev 7).
      Master Capable.  Latency=32.
      I/O at 0xc800 [0xc807].
  Bus  0, device  12, function  0:
    Multimedia video controller: Brooktree Corporation Bt878 (rev 17).
      IRQ 5.
      Master Capable.  Latency=32.  Min Gnt=16.Max Lat=40.
      Prefetchable 32 bit memory at 0xe7005000 [0xe7005fff].
  Bus  0, device  12, function  1:
    Multimedia controller: Brooktree Corporation Bt878 (rev 17).
      IRQ 5.
      Master Capable.  Latency=32.  Min Gnt=4.Max Lat=255.
      Prefetchable 32 bit memory at 0xe7006000 [0xe7006fff].
  Bus  0, device  14, function  0:
    Multimedia audio controller: C-Media Electronics Inc CM8738 (rev 16).
      IRQ 9.
      Master Capable.  Latency=32.  Min Gnt=2.Max Lat=24.
      I/O at 0xcc00 [0xccff].
  Bus  0, device  15, function  0:
    RAID bus controller: Triones Technologies, Inc. HPT366 / HPT370 (rev 5).
      IRQ 11.
      Master Capable.  Latency=120.  Min Gnt=8.Max Lat=8.
      I/O at 0xd000 [0xd007].
      I/O at 0xd400 [0xd403].
      I/O at 0xd800 [0xd807].
      I/O at 0xdc00 [0xdc03].
      I/O at 0xe000 [0xe0ff].
  Bus  1, device   0, function  0:
    VGA compatible controller: nVidia Corporation NV1x (rev 163).
      IRQ 5.
      Master Capable.  Latency=248.  Min Gnt=5.Max Lat=1.
      Non-prefetchable 32 bit memory at 0xe4000000 [0xe4ffffff].
      Prefetchable 32 bit memory at 0xd0000000 [0xd7ffffff].
      Prefetchable 32 bit memory at 0xd8000000 [0xd807ffff].

 - What is your kernel version? [ uname -a ]
Linux myth 2.4.19-16mdk #1 Fri Sep 20 18:15:05 CEST 2002 i686 unknown
unknown GNU/Linux