Slow channel switching with bttv and kernel 2.6 | |
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Hello, after upgrading my kernel to 2.6 I notice that 'xawtv' needs around 1-2 seconds to switch to another channel; with kernel 2.4 this happened nearly immediately. nxtvepg[1] changes channels also while I am watching TV; but its FAQ mentions that this is solved with recent v4l2 versions. Are these general v4l2 issue or caused by my configuration? Some details: * vanilla kernel 2.6.10 SMP * xawtv-3.91 * modprobe options: 'options bttv card=2 tuner=5 vbibufs=32' * 03:0a.0 Multimedia video controller: Brooktree Corporation Bt848 Video Capture (rev 12) | bttv: driver version 0.9.15 loaded | bttv: using 8 buffers with 2080k (520 pages) each for capture | bttv: Bt8xx card found (0). | ACPI: PCI interrupt 0000:03:0a.0[A] -> GSI 22 (level, low) -> IRQ 217 | bttv0: Bt848 (rev 18) at 0000:03:0a.0, irq: 217, latency: 64, mmio: 0xf7eff000 | bttv0: using: Hauppauge (bt848) [card=2,insmod option] | bttv0: Hauppauge/Voodoo msp34xx: reset line init [5] | bttv0: Hauppauge eeprom: invalid | bttv0: Hauppauge eeprom: model=65535, tuner=? (-1), radio=no | bttv0: using tuner=5 | bttv0: i2c: checking for MSP34xx @ 0x80... found | msp34xx: init: chip=MSP3400C-C6 mode=manual | msp3400: kthread started | bttv0: i2c: checking for TDA9875 @ 0xb0... not found | bttv0: i2c: checking for TDA7432 @ 0x8a... not found | tvaudio: TV audio decoder + audio/video mux driver | tvaudio: known chips: tda9840,tda9873h,tda9874h/a,tda9850,tda9855,tea6300,tea6420,tda8425,pic16c54 (PV951),ta8874z | bttv0: i2c: checking for TDA9887 @ 0x86... not found | tuner: chip found at addr 0xc2 i2c-bus bt848 #0 [sw] | tuner: type set to 5 (Philips PAL_BG (FI1216 and compatibles)) by bt848 # | bttv0: registered device video0 | bttv0: registered device vbi0 (the eeprom content was destroyed years ago but I had never problems with it) Enrico Footnotes: [1] http://nxtvepg.sourceforge.net -- Unsubscribe mailto:video4linux-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list
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