[mythtvnz] Second USB DVB-T tuner causes high load

[James Booth]

On Thu, 08 Oct 2009 21:36:21 Dylan Hall wrote:
> I have a very odd problem, I have purchased two of the ASUS usb tuners
> mentioned below in Stephen's post. I got the first, and was so impressed
> I decided to get a second. This is where the problem starts...
> 
> When I connect the second tuner the load average on the machine jumps to
> 1 even when all the daemons etc have been shut down and the machine is
> as idle as it's possible to get a linux box.
> 
> I have VirtualBox running on the machine hosting a copy of ubuntu 9.04
> server. With 1 tuner connected it's all good. Connect the second tuner
> and the ping times to this virtual machine jump from <1ms to 20-60ms
> (varying all over the place).
> 
> Despite the problems above, the second tuner appears to work fine.
> 
> The server is a Core 2 Duo E6600 2.4Ghz, 6GB Ram, running ubuntu 9.04
> server 32 bit, kernel version 2.6.28-15-server-52.
> 
> I'm using the 32bit version of ubuntu because I'm testing SageTV for
> linux which only ships with 32bit binaries. I have PAE enabled to get
> access to the full 6GB of ram.
> 
> I'm unsure how to progress from here. 
> 
> Any ideas anyone? seen something similar?
> 
> Should I log a bug with the ununtu people or try and track down the devs
> for the DVB driver and log a bug with them?
> 
> Thanks for your thoughts,
> 
> Dylan
> 

For what its worth, I also have two of these Asus USB tuners and have no problems with them at all. Both devices are on the same USB bus. I am running Mytbuntu 9.04 32-bit from JYA's repository, Core 2 Duo 2Ghz, 4Gb Ram.