Graham P

gpascoe001 · 01-05-2008, 10:58 AM

We have a Dell Insprion 6400 laptop with an Intel 945 integrated chipset. When loading call of duty 4 we get the error message UBYTE4N Vertex data. We have upgrade to the latest intel driver but no success. Suggestions please.

**FreoHeaveho** · 01-05-2008, 11:39 AM

This is a very common errror with this game. In short, it means your graphics card is either not powerful enough or obsolete. Search the video card threads and you will see about 6 others with the same problem. Also try updtating direct x and windows, and the graphics drivers.

panicrooster · 01-07-2008, 05:39 PM

The UBYTE4N is part of the software of a game that requires a "hardware" vertex shader. Many late model video cards have, let's say pixel shader 2.0 and and directX or the 3d-analyzer can give you (software version) vertex shader 2.0 or 3.0, but the newer games, specifically Call of Duty 4 requires a (video card) "hardware vertex shader 2.0".Bottom line is that you can emulate a software vertex shader but when the game requires a hardware vertex shader you can't. Must buy a new video card that has, preferably, built-in vertex shader 3.0 or might as well get the 4.0. You will need it one day, one game, sooner or later.

01-05-2008, 10:58 AM	#1 (permalink)
gpascoe001 Registered User Join Date: Jan 2008 Posts: 1 OS: windows xp media	Graham P We have a Dell Insprion 6400 laptop with an Intel 945 integrated chipset. When loading call of duty 4 we get the error message UBYTE4N Vertex data. We have upgrade to the latest intel driver but no success. Suggestions please.

01-05-2008, 11:39 AM	#2 (permalink)
FreoHeaveho TSF Enthusiast Join Date: Aug 2006 Location: Australia Posts: 3,213 OS: Windows Vista Ultimate 64 SP2, Windows XP Professional SP3, Mac OSX Leopard My System	Re: Graham P This is a very common errror with this game. In short, it means your graphics card is either not powerful enough or obsolete. Search the video card threads and you will see about 6 others with the same problem. Also try updtating direct x and windows, and the graphics drivers. __________________ PC Wizard-VGA 2009 Charts-Power Supply Info-Multi/Single Rail PSU?-Speedfan-Driver Sweeper

01-07-2008, 05:39 PM	#3 (permalink)
panicrooster Registered User Join Date: Jan 2008 Posts: 5 OS: XP sp2	Re: Graham P The UBYTE4N is part of the software of a game that requires a "hardware" vertex shader. Many late model video cards have, let's say pixel shader 2.0 and and directX or the 3d-analyzer can give you (software version) vertex shader 2.0 or 3.0, but the newer games, specifically Call of Duty 4 requires a (video card) "hardware vertex shader 2.0".Bottom line is that you can emulate a software vertex shader but when the game requires a hardware vertex shader you can't. Must buy a new video card that has, preferably, built-in vertex shader 3.0 or might as well get the 4.0. You will need it one day, one game, sooner or later.