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Thread: Cant use all ram

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i use ubuntu 11.04 64bit on notebook 4gb of ram. problem seem use 1.8 of 4 gb.

output of ~$ free -m is

total used free shared buffers cached
mem: 1852 1678 173 0 144 802
-/+ buffers/cache: 731 1120
swap: 5960 0 5960


please?

are sure have 4gb of ram? (and not 2gb)

ram being siphoned off integrated graphics chip, won't anywhere near 2gb

*edit*
fyi,
can query memory machine has using
code:
sudo lshw -c memory


Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Hardware Cant use all ram


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