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In an optimus enabled laptoto (Dell XPS 15 L502X) I have a discrete graphics card ( GT525M) and when running Nvidia-settings, one can confirm it:

Nvidia Settings for GT525M

Yet, The command:

 lspci -vnnn | grep VGA

outputs the following:

00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF108 [GeForce GT 540M] [10de:0df5] (rev a1) (prog-if 00 [VGA controller])

The lspci command tells us the discrete card is GT540M and not GT525M. By no means I overclocked the card. Or does it mean the card comes undercocked. I can't tell. A bug maybe?

While, before upgrading to 12.04, under 11.10 the same command did output GT525m.

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1 Answer 1

up vote 0 down vote accepted

lspci is using a table of pci codes coming from http://pciids.sourceforge.net/v2.2/pci.ids According to that list the device 10de:0df5 is NVIDIA Corporation GF108 [GeForce GT 540M]

Maybe this is wrong and should be reported there, that eventually the next release of pciutils includes the corrected information? http://pci-ids.ucw.cz/read/PC/10de/0df5

(I do not have such device myself, so I cannot confirm)

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