On Thu, Aug 30, 2012 at 10:14 PM, Dale Dellutri <daledellu...@gmail.com> wrote:
> On Thu, Aug 30, 2012 at 9:46 AM, Lorenzo Villani <lore...@villani.me> wrote:
>> Hi there,
>>
>> I recently bought a Dell XPS 13 and noticed that the amount of memory
>> visible to the system is lower than I expected. This machine ships with
>> a 4Gb module even though the system "sees" only 3,2Gb.
>
> I assume that the BIOS will tell you how much is taken by the Intel HD 3000,
> not just how much total memory.
>
> Another possibility:
> $ lspci -vv
> should also tell you how much the VGA controller is using.
As far as I understand it, the graphic chip "steals" around 260Mb of
RAM. I think I'll try booting Windows just to see if it changes
things. All Linux distributions I tried consistently report the same
amount of total system memory.
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation
Core Processor Family Integrated Graphics Controller (rev 09) (prog-if
00 [VGA controller])
Subsystem: Dell Device 052e
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 48
Region 0: Memory at f0000000 (64-bit, non-prefetchable) [size=4M]
Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
Region 4: I/O ports at 2000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Address: fee0300c Data: 4199
Capabilities: [d0] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [a4] PCI Advanced Features
AFCap: TP+ FLR+
AFCtrl: FLR-
AFStatus: TP-
Kernel driver in use: i915
Kernel modules: i915
--
L.
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