Ubuntu: Live USB faster than full install


When I run 11.04 from a USB flash drive, it works the way I suspect it should - quick and responsive. With a full install, on the other hand, I click the home button and I have to wait four seconds to see the dash (this is insane - I have a core i5). Same thing with alt+F2.

I've also tested the live USB on an older laptop with inferior specs and it still runs faster than my full install.

What's going on? How do I fix this?


The issue is the Unity settings in CCSM. The "Dash Blur" setting was set to "Static Blur". Changing that back to "No Blur" fixes the issue. I suppose this is why it's under the "Experimental" tab.

By the way, the list of PCI devices was the same and I did not try disabling OpenGL because I don't want to disable all the plugins that use it.


It seems to be a problem with the video drivers/configs on the final install. Maybe a live version doesn't do much config specific for your machine. Try to compare video drivers on both systems.

Run lspci then look for Graphic Driver.

lspci | grep VGA    00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset   Integrated Graphics Controller (rev 07)  


it is becouse of all live operating systems work on ramdisk and ramdisk is very much faster than hdd ssd and ofcourse usb flash disk.

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