Upgrade to and no sound with [ICH4 - Intel DB-ICH4, playback ProblemType: Bug This bug report is a duplicate of: Bug # Gateway M, no sound. Edit Remove Mixer name: 'Conexant Cx'. This page contains the driver installation download for Conexant AC-Link Audio in supported models (Gateway M) that are running a supported operating. Drivers for laptop Gateway Gateway M there are 22 devices found for the selected laptop model. Conexant, Conexant AC-Link Audio, Download.