--- On Mon, 12/22/08, Xiaobo Zhu <xiaobo at zhu.net> wrote: > From: Xiaobo Zhu <xiaobo at zhu.net> > Subject: [CentOS] MCP51 sound card can be recognized but can't work > To: centos at centos.org > Date: Monday, December 22, 2008, 10:16 PM > Hi all, > I recently install CentOS 5.2 on my Asus Z99M laptop, > everything seem to > works fine but there is some problem with the sound card. > The system can recognized the hardware and I can even run > the Realplayer for > linux without any error messages, but it can't make any > sound, or even > noise. > I have googled a lot but still can't get it work. Open the mixer window and check the sliders and switches. It should say "hda nvidia" at the bottom. The box I'm responding with has the nvidia MCP55 chipset. Should be similar to yours - I've never had a glitch. -- Mark