On Monday 25 June 2007 08:24:45 Eduard Huguet wrote: > > ---------- Missatge reenviat ---------- > > From: Matt Doran <matt.doran@xxxxxxxxxxxx> > > To: Discussion about mythtv <mythtv-users@xxxxxxxxxx> > > Date: Mon, 25 Jun 2007 10:48:15 +1000 > > Subject: Re: [mythtv-users] will Nova-T 500 work? > > > > David Campbell wrote: > > > Henrik Beckman wrote: > > >> On the pre hotplug driver i was, 'Hauppauge Nova-T 500 Dual > > >> DVB-T successfully deinitialized and disconnected' and then > > >> after a while you got an oops. > > >> > > >> On the newer hotplug drivers you get an write failed for mt2060 > > >> error message, I don´t have the exact message at hand right now. > > > > > > <apologies in advance for the bumping of the old thread> > > > > > > I am running Kubuntu with their own 2.6.20-15 kernel on my system > > > with EIT and I am seeing the dreaded errors in messages and the > > > card just refuses to tune. > > > > > > Jun 19 02:56:56 kubuntu kernel: [126723.015463] usb 4-1: USB > > > disconnect, address 3 > > > Jun 19 02:56:56 kubuntu kernel: [126723.021150] mt2060 I2C write > > > failed Jun 19 02:56:56 kubuntu kernel: [126723.021495] mt2060 I2C > > > write failed > > > > > > Does anyone have any advice on making the system more stable? My > > > own kernel? Stop using EIT? > > > > Stop using EIT. > > Also you could effectively try to upgrade your kernel, as it seems > that the problem is closesly related to the USB layout. As a > recommendation, you should also disable the DVB layout in kernel > options and use lastest HG drivers from LinuxTV. > > I'm currently using Sabayon 3.3 (Gentoo) + 2.6.21-r3 + HG drivers > with my Nova-T 500 and the disconnect problem is really sporadic > (also I have EIT on, as I rely solely on it to retrieve program > listings). But you still see disconnects? I haven't seen any in the last weeks and I actually don't remember when I saw the last one. Logs aren't available due to a hd failure. I do remember that I haven't seen a disconnect since mid may. I'm using 2.6.21.* and v4l-dvb hg from the same time. The error occured only sporadic here even with mythtv's eit scanning enabled. But more than a month with two reboot and 24/7 running mythbackend is a new record (previous record was 11 days). It's hard to say after which it's safe to assume that the bug is fixed especially since I have no hard statistics. But let's us assume normal distributed values with mean = 5 days and variance = 2 (which are optimistic guesses. more realistic values are mean = 3 days and standard deviation = 2 days). The p-value for seeing one month (31 days) without without usb disconnent is 4.490409e-11. I doubt anyone will claim that that is not significant. I.e. it is very highly unlikely that the disconnects have still the same occurance pattern. There is a minor drawback, if the disconnects depend on the time since the last reboot it's not over 31 days but just 17 p-value decreases to 0.00151. Still significant to the 1% level. Janne _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
