Hi All, Looking for suggestions on which way to go.
Background: I've got an XP2600, 333FSB, in an Asus A7N8X-E Deluxe motherboard with a MX440 at 8x AGP. As tuners, I've got a PVR-250, HD-2000 (dvb-bt8xx DVB Driver), and a Win-TV dbx (software btttv card). Assuming nothing else is going on, I can playback 1080i content with ~5% free. I'm running FC3 with 2.6.12 / 18.1 mythtv. All dist-upgraded to the latest at-testing. Other HW installed is 2x IDE HDD's, Linksys WLAN NIC. Using onboard sound, ethernet. Symptoms: I have intermittant problems with HD recordings from the HD-2000. They go well when there is no other real activity on the HDD's or PCI bus. However, if I'm recording, say, on the PVR-250 and the HD-2000 at the same time, I have a ~25% of the recording failing. If HD-2000 recording, commercial flagging, and PVR-250 recording at the same time, I have a 100% chance of the HD card stopping recording. Likelihood = a function of bus traffic. Similar results when viewing a recording (SDTV or HDTV) and recording HD. Likelihood of recording failure is a function of bus traffic. In the dmesg logs, I get about a hundred or so: bttv(0) FBUS risc_pc=fff2453 sometimes I get something like FDSR errors, Then they end with something like bttv(0) IRQ lockup and the HD recording ends. There is also pixelation / data corruption while the FBUS errors are going on. Its not a signal quality issue. Seems to correlate with processor load and/or HDD load. My dilemma: I have been considering upgrading the processor to an XP3200 / FSB400. I could also just buy a different motherboard if there one with a more reliable chipset / PCI bus. I could also buy an Intel combo if the XP combo will never yield reliable recordings. I don't want to spend $$ on an upgraded processor if the core problem is the chipset and it won't solve the problem. Limited time to diagnose. Stuff I've tried: 1. ensure HD-2000 isn't sharing an IRQ --> doesn't help 2. decrease latency on all pci bus cards except the HD-2000. Increase latencey to 255 (from 32) on HD-2000 audio, video. --> doesn't help. 3. checked signal strength / signal quality. --> Great signal Is anyone using an HD-2000 with ivtv on an Asus A7N8*-* motherboard? Results? (I've read a couple posts at linuxtv where frustration ensued and someone chucked the asus mobo for an msi cheapie and it was rock-solid ever since). Other things to try? Thanks, John _______________________________________________ mythtv-users mailing list [email protected] http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
