I assume the sound output of your tv card goes through line in. Try KMix to deselect line in.
I love the new Knoppix DVD but have a problem I haven't encountered with any other distro of Linux - previous Knoppix included:
I have an old ATI TV Card in my computer and when my machine boots with Knoppix, it "senses" the card and immediate begins playing TV sound. If I try to load the TV software xawtv, the software works flawlessly - as good as the MS software that was made for the card. However, if I close the program, the sound stays on until I turn off the machine.
Of course I could mute it, but finding out how to fix the problem is so much more fun.
I assume the sound output of your tv card goes through line in. Try KMix to deselect line in.
USB Flash Drive Memory Stick Pendrive Thumb Drive 4GB, 8GB, 32GB, 64GB 128GB LOT
$230.40
Type C USB 3.0 Flash Drive Thumb Drive Memory Stick for PC Laptop 1TB 2TB lot
$73.29
1TB/2TB USB 3.0 Flash Drive Thumb U Disk Memory Stick Pen PC Laptop Storage lot
$80.39
USB Flash Drive Thumb Drive Memory Stick Pendrive 4GB, 8GB, 32GB, 64GB 128GB LOT
$308.13
Sandisk 16GB 32GB 64GB 128GB Cruzer Blade Flash Drive Memory Stick USB Lot Pack
$4.90
SanDisk Cruzer Blade 32GB USB 2.0 Flash Drive Thumb Memory Stick Pen SCDZ50 32G
$5.75
Lenovo Metal 2tb USB Flash Drive USB 3.0 High Speed File Transfer U Disk 16tb 8t
$10.99
Microsoft Windows 11 Pro 64-Bit USB Flash Drive (HAV-00162)
$50.00
2TB USB 3.0 Flash Drive Thumb U Disk Memory Stick Pen PC Laptop Storage US
$41.69
SanDisk Cruzer Glide USB 3.0 16GB 32GB 64GB 128GB 256GB Flash Drive Memory Lot
$239.99