Hello, everybody I am using an Acer 1681 with FC3. My sound card is detected to be: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller. And the module of snd-intel8x0 is successfully loaded from the output of lsmod. But, there's always no sound! The command dmesg often gives the following errors: semaphore is not ready for register 0x2 I tried some solutions from the internet, but none of them can take effect (such as recompiling the alsa). Can anybody help me? Hope the FC4 can solve this problem. Yours,