I have both a PVR250 & PVR150 installed, but when using KnoppMyth R5B7 the PVR250 Tuner Input (only) has much lower volume level than any other inputs. I presume this is a bug in ivtv 0.4.3 since it didn't show up with an older KnoppMyth version, but I was wondering if anyone knows of a way to configure "Recording Profiles" on a per-input basis so I can adjust the volume levels of each input independently, versus adjusting all PVRx50 cards at the same time. Even on the same card (PVR250), I'd like to raise the Tuner input volume without messing with the SVideo input volume.

ivtv init messages are as follows, FYI (this version of 0.4.3 was also patched per instructions in another thread so that my PVR150 doesn't show up as a PVR250):
Apr 26 17:51:13 mythtv kernel: ivtv: ==================== START INIT IVTV ====================
Apr 26 17:51:13 mythtv kernel: ivtv: version 0.4.3 (tagged release) loading
Apr 26 17:51:13 mythtv kernel: ivtv: Linux version: 2.6.15-chw-2 SMP preempt 586 gcc-3.3
Apr 26 17:51:13 mythtv kernel: ivtv: In case of problems please include the debug info between
Apr 26 17:51:13 mythtv kernel: ivtv: the START INIT IVTV and END INIT IVTV lines, along with
Apr 26 17:51:13 mythtv kernel: ivtv: any module options, when mailing the ivtv-users mailinglist.
Apr 26 17:51:13 mythtv kernel: ivtv0: Autodetected WinTV PVR 250 card (cx23416 based)
Apr 26 17:51:13 mythtv kernel: ACPI: PCI Interrupt 0000:02:01.0[A] -> GSI 19 (level, low) -> IRQ 18
Apr 26 17:51:13 mythtv kernel: ivtv0: Unreasonably low latency timer, setting to 64 (was 32)
Apr 26 17:51:13 mythtv kernel: ivtv0: i2c attach to card #0 ok [client=tveeprom, addr=50]
Apr 26 17:51:13 mythtv kernel: tuner 2-0061: chip found @ 0xc2 (ivtv i2c driver #0)
Apr 26 17:51:13 mythtv kernel: ivtv0: i2c attach to card #0 ok [client=(tuner unset), addr=61]
Apr 26 17:51:14 mythtv kernel: saa7115 2-0021: saa7115 found @ 0x42 (ivtv i2c driver #0)
Apr 26 17:51:14 mythtv kernel: ivtv0: i2c attach to card #0 ok [client=saa7115, addr=21]
Apr 26 17:51:14 mythtv kernel: msp3400 2-0040: chip=MSP3445G-B8 +nicam +simple +simpler +radio mode=simpler
Apr 26 17:51:14 mythtv kernel: msp3400 2-0040: msp34xxg daemon started
Apr 26 17:51:14 mythtv kernel: ivtv0: i2c attach to card #0 ok [client=MSP3445G-B8, addr=40]
Apr 26 17:51:14 mythtv kernel: tveeprom 2-0050: Hauppauge model 32062, rev B185, serial# 7367074
Apr 26 17:51:14 mythtv kernel: tveeprom 2-0050: tuner model is TCL 2002N 6A (idx 85, type 50)
Apr 26 17:51:14 mythtv kernel: tveeprom 2-0050: TV standards NTSC(M) (eeprom 0x08)
Apr 26 17:51:14 mythtv kernel: tveeprom 2-0050: audio processor is MSP3445 (idx 12)
Apr 26 17:51:14 mythtv kernel: tveeprom 2-0050: decoder processor is SAA7115 (idx 19)
Apr 26 17:51:14 mythtv kernel: tveeprom 2-0050: has no radio, has IR remote
Apr 26 17:51:15 mythtv kernel: ivtv0: loaded v4l-cx2341x-enc.fw firmware (262144 bytes)
Apr 26 17:51:15 mythtv kernel: ivtv0: Encoder revision: 0x02050032
Apr 26 17:51:15 mythtv kernel: ivtv0: Allocate DMA encoder MPEG stream: 128 x 32768 buffers (4096KB total)
Apr 26 17:51:15 mythtv kernel: ivtv0: Allocate DMA encoder YUV stream: 194 x 10800 buffers (2048KB total)
Apr 26 17:51:15 mythtv kernel: ivtv0: Allocate DMA encoder VBI stream: 120 x 17472 buffers (2048KB total)
Apr 26 17:51:15 mythtv kernel: ivtv0: Allocate DMA encoder PCM audio stream: 455 x 4608 buffers (2048KB total)
Apr 26 17:51:15 mythtv kernel: tuner 2-0061: type set to 50 (TCL 2002N)
Apr 26 17:51:15 mythtv kernel: ivtv0: Initialized WinTV PVR 250, card #0
Apr 26 17:51:15 mythtv kernel: ivtv: ====================== NEXT CARD ======================
Apr 26 17:51:15 mythtv kernel: ivtv1: Autodetected WinTV PVR 150 card (cx23416 based)
Apr 26 17:51:15 mythtv kernel: ACPI: PCI Interrupt 0000:02:02.0[A] -> GSI 20 (level, low) -> IRQ 22
Apr 26 17:51:15 mythtv kernel: ivtv1: Unreasonably low latency timer, setting to 64 (was 32)
Apr 26 17:51:15 mythtv kernel: ivtv1: i2c attach to card #1 ok [client=tveeprom, addr=50]
Apr 26 17:51:15 mythtv kernel: tuner 3-0061: chip found @ 0xc2 (ivtv i2c driver #1)
Apr 26 17:51:15 mythtv kernel: ivtv1: i2c attach to card #1 ok [client=(tuner unset), addr=61]
Apr 26 17:51:15 mythtv kernel: cx25840 3-0044: cx25843-23 found @ 0x88 (ivtv i2c driver #1)
Apr 26 17:51:18 mythtv kernel: cx25840 3-0044: loaded v4l-cx25840.fw firmware (14264 bytes)
Apr 26 17:51:18 mythtv kernel: ivtv1: i2c attach to card #1 ok [client=cx25840, addr=44]
Apr 26 17:51:18 mythtv kernel: wm8775 3-001b: chip found @ 0x36 (ivtv i2c driver #1)
Apr 26 17:51:18 mythtv kernel: ivtv1: i2c attach to card #1 ok [client=wm8775, addr=1b]
Apr 26 17:51:18 mythtv kernel: tveeprom 3-0050: Hauppauge model 26052, rev C185, serial# 2872458
Apr 26 17:51:18 mythtv kernel: tveeprom 3-0050: tuner model is TCL 2002N 6A (idx 85, type 50)
Apr 26 17:51:18 mythtv kernel: tveeprom 3-0050: TV standards NTSC(M) (eeprom 0x08)
Apr 26 17:51:18 mythtv kernel: tveeprom 3-0050: audio processor is CX25843 (idx 37)
Apr 26 17:51:18 mythtv kernel: tveeprom 3-0050: decoder processor is CX25843 (idx 30)
Apr 26 17:51:18 mythtv kernel: tveeprom 3-0050: has no radio, has IR remote
Apr 26 17:51:19 mythtv kernel: ivtv1: loaded v4l-cx2341x-enc.fw firmware (262144 bytes)
Apr 26 17:51:19 mythtv kernel: ivtv1: Encoder revision: 0x02050032
Apr 26 17:51:19 mythtv kernel: ivtv1: Allocate DMA encoder MPEG stream: 128 x 32768 buffers (4096KB total)
Apr 26 17:51:19 mythtv kernel: ivtv1: Allocate DMA encoder YUV stream: 194 x 10800 buffers (2048KB total)
Apr 26 17:51:19 mythtv kernel: ivtv1: Allocate DMA encoder VBI stream: 120 x 17472 buffers (2048KB total)
Apr 26 17:51:19 mythtv kernel: ivtv1: Allocate DMA encoder PCM audio stream: 455 x 4608 buffers (2048KB total)
Apr 26 17:51:19 mythtv kernel: tuner 3-0061: type set to 50 (TCL 2002N)
Apr 26 17:51:19 mythtv kernel: eth0: no IPv6 routers present
Apr 26 17:51:19 mythtv kernel: ivtv1: Initialized WinTV PVR 150, card #1
Apr 26 17:51:19 mythtv kernel: ivtv: ==================== END INIT IVTV ====================

Thanks!

I've got the same problem which appeared sometime in the 0.4.x series of ivtv drivers and I haven't found a way around it yet. There is a MythTV RFE and a couple ugly hacks that might work, but no clean solution.

I too have the same issue. I have a newer PVR-150 and an older PVR-250. The audio from the PVR-150 is chrisp, loud and clear. The audio from PVR-250 is not only lower but is more muffled. I am running MythDora 2.1 (I needed that LVM badly) which has ivtv version 0.4.3. Since MythDora doesn't do SMP, I might just wipe it our and dump the whole distro thing and go with Jarod Wilson's FC4 + MythTV install. So, which is the best version of ivtv? 0.4.5 or 0.6.2? Neither would identify my new PVR-150 so I have to use the options line anyway.

So, is it that nobody knows this or is it that since this is a KnoppMyth forum, y'all won't anwer a question posted by a MythDora user?

Which ivtv version depends on your kernel version. See the ivtv wiki for more details.

I've posted some experimental scripts in another thread for tweaking the ivtv parameters to custom values to get around 1) the driver problems 2) mythtv's lack of card by card adjustments. I think it's under hits&tips or maybe usage/howto. A quick search should find it.