This looks an awful lot like my problem as well (discussed in Distortion in PVR-500). The PVR-500 is just two PVR-150s, although my problem is a little more severe: these jitters sometimes take up the whole screen and range from rarely occurring to violently present. I'm interested to see if your fix for this fixes mine as well.
I'm trying to revert back to software from 2005 that I used for over a year that worked fine. I'll let you know if that solves my problem, in which case we can confirm this to be a software bug, but hardware failure. - Christopher Thielen Rob Starling wrote: > Hi! I'm getting funny "jitter" in my ivtv recordings from my > PVR-150. > ( here's a couple-second (2MB) snippet that demonstrates it: > http://robstarling.org/misc/ivtv-twitch.mpg ) > > Does that look like an ivtv problem, or just a signal strength > problem? It happens both in mythtv and with dd if=/dev/video0 > > This is on a 1.3GHz Athlon and ivtv is on an interrupt all by > itself: > > # cat /proc/interrupts > CPU0 > 0: 226037026 IO-APIC-edge timer > 1: 17779 IO-APIC-edge i8042 > 7: 2 IO-APIC-edge parport0 > 8: 1 IO-APIC-edge rtc > 9: 0 IO-APIC-level acpi > 12: 32692 IO-APIC-edge i8042 > 14: 380451 IO-APIC-edge ide0 > 15: 573 IO-APIC-edge ide1 > 169: 0 IO-APIC-level uhci_hcd:usb1 > 177: 12608475 IO-APIC-level uhci_hcd:usb2, eth1 > 185: 0 IO-APIC-level uhci_hcd:usb3, uhci_hcd:usb4 > 193: 77137 IO-APIC-level ehci_hcd:usb5, ohci1394, CMI8738-MC6 > 201: 205723 IO-APIC-level ivtv0 > NMI: 0 > LOC: 226032670 > ERR: 0 > MIS: 0 > > My dmesg snippet is here: > > ivtv: ==================== START INIT IVTV ==================== > ivtv: version 0.10.1 (tagged release) loading > ivtv: Linux version: 2.6.18-3-k7 SMP mod_unload K7 REGPARM gcc-4.1 > ivtv: In case of problems please include the debug info between > ivtv: the START INIT IVTV and END INIT IVTV lines, along with > ivtv: any module options, when mailing the ivtv-users mailinglist. > ivtv0: Autodetected Hauppauge card (cx23416 based) > ACPI: PCI Interrupt 0000:00:0f.0[A] -> GSI 18 (level, low) -> IRQ 201 > ivtv0: Unreasonably low latency timer, setting to 64 (was 32) > irda_init() > NET: Registered protocol family 23 > ivtv0: loaded v4l-cx2341x-enc.fw firmware (376836 bytes) > input: ImPS/2 Generic Wheel Mouse as /class/input/input2 > ivtv0: Encoder revision: 0x02060039 > tveeprom 0-0050: Hauppauge model 26132, rev G1B2, serial# 9831694 > tveeprom 0-0050: tuner model is TCL M2523_5N_E (idx 112, type 50) > tveeprom 0-0050: TV standards NTSC(M) (eeprom 0x08) > tveeprom 0-0050: audio processor is CX25841 (idx 35) > tveeprom 0-0050: decoder processor is CX25841 (idx 28) > tveeprom 0-0050: has no radio, has IR remote > ivtv0: Autodetected Hauppauge WinTV PVR-150 > ivtv0: reopen i2c bus for IR-blaster support > tuner 0-0061: chip found @ 0xc2 (ivtv i2c driver #0) > cx25840 0-0044: cx25841-23 found @ 0x88 (ivtv i2c driver #0) > ts: Compaq touchscreen protocol output > cx25840 0-0044: loaded v4l-cx25840.fw firmware (16382 bytes) > wm8775 0-001b: chip found @ 0x36 (ivtv i2c driver #0) > ivtv0: Registered device video0 for encoder MPEG (4 MB) > ivtv0: Registered device video32 for encoder YUV (2 MB) > ivtv0: Registered device vbi0 for encoder VBI (1 MB) > ivtv0: Registered device video24 for encoder PCM audio (1 MB) > tuner 0-0061: type set to 50 (TCL 2002N) > ivtv0: Initialized Hauppauge WinTV PVR-150, card #0 > ivtv: ==================== END INIT IVTV ==================== > > Thanks! > --Rob > > _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
