Comment 9 for bug 830949
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| David Barth (dbarth) wrote Re: [Intel N10 Graphics] Plugging in external monitor to VGA port makes both displays corrupted with thick slanted lines | #9 |
Ok, so this sounds like an another HW limitation problem, where the addition of a second head prevents the chipset to drive all screens that the initial resolution and results in poor results.
Intrisically it is a driver bug: the driver shouldn't force the HW to go beyond its limits. Either it should lower the resolution forcefully, or disable support for the 2nd head.