Problem reading Uno via Linux

hey there,

i'm new here , having strange problem uno.

i want measure , plot temperature ds18b20's. works fine on win 7 64bit. now, using opensuse 13.1. on serial monitor comes arduino ide fine, too. looks this:

rom = 281cffa450063 22.69 c
rom = 28bc7ba550064 22.62 c
rom = 28822ca4500d1 22.62 c
rom = 28d56da45005e 22.50 c
rom = 281bd7a450020 22.56 c
no more sensors
rom = 281cffa450063 22.62 c
rom = 28bc7ba550064 22.62 c
rom = 28822ca4500d1 22.62 c
rom = 28d56da45005e 22.50 c
rom = 281bd7a450020 22.56 c
no more sensors

... , on

when trying use "screen /dev/ttyacm0 9600" on terminal or python script, needs time read correctly. looks like:

2
  rom = 28bc7ba5500646 c
rom = 28d56da45005e 22.44 c
rom = 281bd7a450020 22.50 c
no more sensors
rom = 281cffa450063 22.62 c
rom = 28bc7ba550064rom = 281cffa450063 22.62 c
rom = 28bc7ba550064 22.56 c
rom = 28822ca4500d1 22.56 c
rom = 28d56da45005e 22.44 c
rom = 281bd7a450020 22.50 c
no more sensors
rom = 281cffa450063 22.62 c
rom = 28bc7ba550064 22.56 c
rom = 28822ca4500d1 22.56 c
rom = 28d56da45005e 22.50 c
rom = 281bd7a450020 22.50 c
no more sensors

so there problem @ beginning , works. looks different every time, never correct , can't save file , plot later...

i don't want ignore , skip first 10 lines or so, want have solution^^
does has idea??

cheers,
chewy

no one?

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