Im using R5B7... i had the setup working in the previous version

this card is hooked up to a motorola digital box (through coax) and it picks up on channel 3 (set in mythtv-setup, as is us-cable)

basically, the card is up and working in xawtv
xawtv -c /dev/video1 (then i have to set it to ntsc+us-cable)

however, if i boot right to mythfrontend, watchtv, and switch to this tuner, i get a green screen with some static at the top (that i cant duplicate in xawtv)

if i quit out of myth, and run the xawtv, then go back to myth, i can watch tv. what is going on that isnt initializing bttv1 until i do so manually?

relevant lspci:
0000:00:09.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11)
0000:00:09.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11)
0000:00:0a.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 02)
0000:00:0a.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 02)

/etc/myth/modules/bttv0:
alias char-major-81-0 bttv
options bttv card=70,24 tuner=43,17 radio=1,0 bttv_gpio=1,0 remote=1,1

dmesg | grep bttv1
bttv1: Bt878 (rev 2) at 0000:00:0a.0, irq: 19, latency: 32, mmio: 0xfa002000
bttv1: detected: (Askey Magic/others) TView99 CPH06x [card=38], PCI subsystem ID is 144f:3000
bttv1: using: Askey CPH05X/06X (bt878) [many vendors] [card=24,insmod option]
bttv1: gpio: en=00000000, out=00000000 in=00ffefff [pre-init]
bttv1: gpio: en=00000000, out=00000000 in=00ffefff [init]
bttv1: using tuner=17
bttv1: i2c: checking for MSP34xx @ 0x80... not found
bttv1: i2c: checking for TDA9875 @ 0xb0... not found
bttv1: i2c: checking for TDA7432 @ 0x8a... not found
bttv1: i2c: checking for TDA9887 @ 0x86... not found
bttv1: registered device video1
bttv1: registered device vbi1
bttv1: gpio: en=00000e00, out=00000c00 in=00ffe1ff [audio: off]
bttv1: gpio: en=00000e00, out=00000c00 in=00ffe1ff [audio: off]
bttv1: PLL: 28636363 => 35468950 .. ok
bttv1: add subdevice "remote1"
bttv1: gpio: en=00000e00, out=00000c00 in=00ffe1ff [audio: off]
bttv1: PLL can sleep, using XTAL (28636363).
bttv1: gpio: en=00000e00, out=00000c00 in=00ffe1ff [audio: off]