On my Acer Aspire 5600 whit fc5 I not hear any sound. Chip: Intel Corporation 82801G - High Definition Audio Kernel-Module: snd-hda-inte > [root@lesca ~]# lspci > 00:00.0 Host bridge: Intel Corporation Mobile Memory Controller Hub (rev 03) > 00:01.0 PCI bridge: Intel Corporation Mobile PCI Express Graphics Port (rev 03) > 00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02) > 00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 02) > 00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 02) > 00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 (rev 02) > 00:1c.3 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 4 (rev 02) > 00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #1 (rev 02) > 00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #2 (rev 02) > 00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #3 (rev 02) > 00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #4 (rev 02) > 00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 02) > 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2) > 00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02) > 00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 02) > 00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 02) > 01:00.0 VGA compatible controller: ATI Technologies Inc Unknown device 7149 > 02:00.0 Network controller: Intel Corporation Unknown device 4222 (rev 02) > 0a:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10) > 0a:09.0 CardBus bridge: Texas Instruments Unknown device 8039 > 0a:09.2 Mass storage controller: Texas Instruments Unknown device 803b > 0a:09.3 Class 0805: Texas Instruments Unknown device 803c This morning I have fount this article: https://bugtrack.alsa-project.org/alsa-bug/view.php?id=2104 So I have install the new driver take from: http://www.icewalkers.com/download/ALSA-driver/660/dld/ % tar xvf alsa-driver-1.0.13rc1.tar.bz2 % cd alsa-driver-1.0.13rc1 % ls % ./configure % make % sudo make install % reboot After reboot, I have run: # system-config-soundcard ..... and finally my laptop can play sounds!!. Great work, thank you all. Hope this help. (Please, insert this driver into FC6) -- Dario Lesca <d.lesca@xxxxxxxxxx>