Screen OLED 128*128 and I2C

i have a oled screen (SH1107),it work with I2C.There are no problem to use it alone,but when i connect another sensor on I2C,the screen does’nt work.It’s not a problem of adress,i verify it.An idea?,

I am thinking the other sensor is not terminated correctly or has a short or mismatched pin
Are you using Seeed hardware? can you post a picture of the setup?

it’s ok now, i just put two pull up resistor (4,7k)from A4 and A5 to Vcc.

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