[mythtv-users] Hauppauge 2250 causes dropped network packets
Keith Pyle
kpyle at austin.rr.com
Mon Mar 29 04:07:29 UTC 2010
mythtv-users-request at mythtv.org wrote:
> Built this PC a couple months ago.
>
> Motherboard is Asus M4A77D
> Network is the onboard NIC:
> 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
> RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
>
> Networking works fine when the Hauppauge 2250 PCI Express tuner
> card is not in the machine.
>
> When I installed the tuner card, I started getting 5-15% dropped
> packets. The packets are being dropped in the very first hop,
> from the PC to my DSL router/modem. Other PCs on the same network
> never drop packets, and removing the tuner card makes this PC start
> working fine again.
>
> The only connection I can see between tuner and NIC is that when
> the tuner is not present, the NIC is at PCI address 02:00.0, but
> when the tuner is installed, it takes the 02:00.0 address, and
> the NIC winds up at 03:00.0.
>
Check the output of 'lspci -v' when you have the 2250 installed and see
if the 2250 and the NIC share the same IRQ. It may be an interrupt
sharing problem. As an earlier poster suggested, moving the 2250 to
another slot may cure this (by moving the 2250 to another interrupt).
Keith
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