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ethomaz said:

walsufnir said:

I am quite sure it is onboard gpu. Could you post a "lspci -v" from a terminal? It is quite usual that you can' change the amount of shared RAM used by onboard-GPU (especially if it is Intel).

The GPU is the only coming in Sandy Bridge CPU I guess... the command.


00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) (prog-if 00 [VGA controller])
Subsystem: Lenovo Device 21f3
Flags: bus master, fast devsel, latency 0, IRQ 31
Memory at f0000000 (64-bit, non-prefetchable) [size=4M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
I/O ports at 5000 [size=64]
Expansion ROM at [disabled]
Capabilities:
Kernel driver in use: i915
Kernel modules: i915


Exactly, that's where your lost memory is found :)