[mythtv-users] Prebuffering Pause Problem

Sebastian Wuttge mythtv at die-schmie.de
Mon Sep 20 10:06:18 EDT 2004

Hi List

I have a VIA Epia M 10000 Board with
- patched kernel dri 1.3
- Debian 3.1 unstable
- Xfree86 4.4 with libviaXvMC 0.11.3, unichrome 3D 0.1.0,
unichrome-X-r-25 patch
- xine with unichrome-xine-plugin 0.2.1
- Hauppauge WinTV stereo
Everything works and i can play DVD's with a max load of 40%.
So far so good :)

Watching TV with tvtime works fine with a max load of 80%
Now I've compiled Mythtv from CVS and installed it. works.
But when i'm trying to watch Live TV I get a cpu-load of 100% and every
2 seconds a prebuffering pause message.

Does anyone has an idea how to solve this problem?
Google has no answers...
Below you can find some log output from dmesg and Xfree86

Greetings Sebastian

BTW: I've installed MythTV on an other computer AMD 3000 with 1024 MB
RAM and I have the same Problems!

TeeVee:~# dmesg | grep DMA
  DMA zone: 4096 pages, LIFO batch:1
VP_IDE: VIA vt8235 (rev 00) IDE UDMA133 controller on pci0000:00:11.1
    ide0: BM-DMA at 0xe000-0xe007, BIOS settings: hda:DMA, hdb:pio
    ide1: BM-DMA at 0xe008-0xe00f, BIOS settings: hdc:DMA, hdd:pio
hda: 40010544 sectors (20485 MB) w/2048KiB Cache, CHS=39693/16/63,
hdc: ATAPI 40X DVD-ROM drive, 256kB Cache, UDMA(33)

I get following output from XFree86.0.log
(II) VIA(0): [drm] created 
"via" driver at busid "PCI:1:0:0"
(II) VIA(0): [drm] added 8192 byte SAREA at 0xdeb18000
(II) VIA(0): [drm] mapped SAREA 0xdeb18000 to 0x422bc000
(II) VIA(0): [drm] framebuffer handle = 0xd8000000
(II) VIA(0): [drm] added 1 reserved context for kernel
(II) VIA(0): [drm] drmAgpEnabled succeeded
(II) VIA(0): [drm] agpAddr = 0xd0000000
(II) VIA(0): [drm] agpBase = (nil)
(II) VIA(0): [drm] agpAddr = 0xd0000000
(II) VIA(0): [drm] agpSize = 0x01e00000
(II) VIA(0): [drm] agp physical addr = 0x00000000
(II) VIA(0): [dri] use agp.
(II) VIA(0): [drm] FBFreeStart= 0x00400000 FBFreeEnd= 0x01fbe000 FBSize=
(II) VIA(0): [dri] frame buffer initialized.
(II) VIA(0): [dri] visual configs initialized.
(II) VIA(0): [drm] register handle = 0xdc000000
(II) VIA(0): [drm] mmio Registers = 0xdc000000
(II) VIA(0): [dri] mmio mapped.
(II) VIA(0): X context handle = 0x00000001
(II) VIA(0): [drm] installed DRM signal handler
(II) VIA(0): [DRI] installation complete
(II) VIA(0): [dri] kernel data initialized.
(II) VIA(0): [drm] Irq handler installed, using IRQ 11.
(II) VIA(0): direct rendering enabled
(II) VIA(0): Benchmarking video copy. Less is better.
(--) VIA(0): Timed   libc YUV420 copy... 3971517. Throughput: 149.4
(--) VIA(0): Timed kernel YUV420 copy... 3948509. Throughput: 150.2
(--) VIA(0): Timed    SSE YUV420 copy... 1899527. Throughput: 312.3
(--) VIA(0): Timed    MMX YUV420 copy... 2647376. Throughput: 224.1
(--) VIA(0): Ditch 3DNow! YUV420 copy... Not supported by CPU.
(--) VIA(0): Timed   MMX2 YUV420 copy... 1953701. Throughput: 303.6
(--) VIA(0): Using SSE YUV42X copy for video.
(II) VIA(0): [XvMC] Initialized XvMC extension.
| Sebastian Wuttge  | fon: 07221 803 52 52 | mailto: wuttge at die-schmie.de |
| Hahngartenstr. 3  | fax: 07222 13 445	   | web:    www.die-schmie.de    |
| 76532 Baden-Baden | mob: 0173  622 75 13 | icq:    37989431             |

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