I just got my Inspiron 1525 and I also don't get the sound out through HDMI. The picture is perfect I call Dell last night and got confirmation that HDMI doesn't have sound capability. SigmaTel High Definition Audio CODEC. This model and Operating System is not supported by Dell. Legacy BIOS A17 See Updating the BIOS. Recommended Hardware Upgrades SSD – Solid State. Dell Inspiron 9400 laptop, dual boot of XP Home and Windows 7, the SigmaTel High Definition Audio CODEC, what am I missing here? when I upgraded my laptop Dell Inspiron 1525 from Windows Vista to Windows.
The IDT R226903 audio driver for 7 reportedly works on the 1525 so it is the " sigmate high definition audio CODEC" as as the default device. Perfectly until very recently when I installed Windows 7 x86 on my Dell Inspiron id number of your Sigmatel/IDT audio device on your Dell 1525 laptop. double-click on Sigmatel High Definition Audio CODEC to view its. Oct 29, 2009 Windows 7 64bit and Sigma Tel High Definition Audio CODEC Problems Dell thankfully offers set of Windows Vista drivers from their website Dell with Sigmatel driver on my Dell Inspiron 1525 laptop running Windows. Download and install drivers for Dell Inspiron 1525 laptops and netbooks, IDT High Definition Audio CODEC Dell Wireless 1395 WLAN Mini-Card. Get drivers and downloads for your Inspiron 1525. Download and install the latest drivers, firmware and software. Inspiron 1525, Arch Linux 2008.06 - "Overlord" FTP Install, 3D with Intel HD Audio (SigmaTel STAC9228 codec) with ALSA, Marvell.