Dell Latitude D800 : no IDCT

pixelpusher · 09-27-05, 01:15 AM

With the Linux driver on a Latitude D800 (nv28 : "GeForce4 Ti 4200 Go"), when I run mplayer (with hardware MPEG accel : "-vo xvmc -vc ffmpeg12mc"), it says, "idct=0" (but it does do "motion compensation").

Whereas when I run it on a Latitude C840 (nv17 : "GeForce 440 Go"), it says, "idct=1" (and "motion compensation").

Is the absense of the IDCT due to the hardware difference between nv17 & nv28 or is it a software issue?

**Thunderbird** · 09-27-05, 03:58 AM

The geforce4 TI can be seen as a continuation of the Geforce3 with a few extra 3d features and higher clocks. The Geforce4MX is a very different GPU, it can be seen as a highly improved Geforce2MX containing improvements like IDCT support. The Geforce4 TI doesn't contain IDCT. So the difference is in hardware.

09-27-05, 01:15 AM	#1
pixelpusher Registered User Join Date: Sep 2005 Posts: 2	Dell Latitude D800 : no IDCT With the Linux driver on a Latitude D800 (nv28 : "GeForce4 Ti 4200 Go"), when I run mplayer (with hardware MPEG accel : "-vo xvmc -vc ffmpeg12mc"), it says, "idct=0" (but it does do "motion compensation"). Whereas when I run it on a Latitude C840 (nv17 : "GeForce 440 Go"), it says, "idct=1" (and "motion compensation"). Is the absense of the IDCT due to the hardware difference between nv17 & nv28 or is it a software issue?

09-27-05, 03:58 AM	#2
Thunderbird Join Date: Jul 2002 Location: Netherlands, Europe Posts: 2,105	Re: Dell Latitude D800 : no IDCT The geforce4 TI can be seen as a continuation of the Geforce3 with a few extra 3d features and higher clocks. The Geforce4MX is a very different GPU, it can be seen as a highly improved Geforce2MX containing improvements like IDCT support. The Geforce4 TI doesn't contain IDCT. So the difference is in hardware.

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