When I connect an HP S2331a monitor everything is fine for about half an hour. Then the external display starts flickering as if it's lost both horizontal and vertical sync. If I press a key or click a mouse it becomes stable again but only for a second or two (10 seconds with a bluetooth mouse). I've tried every setting on both units to no avail. The monitor is fine with other PCs. Any ideas?
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have you tried to update graphic card drivers from the link below?
Lenovo Support - Drivers & Downloads
Ideapad s10-3 external display flicker
Discussion in 'Lenovo' started by Len Mann, Mar 30, 2011.