On Fri, 16 Oct 2015 15:04:35 -0400 Joshua Bowren <[email protected]> wrote:
> I am not sure if this is just a GNOME issue or if my computer's > graphics (GMA 945) is just too slow. Whenever I plug into a display > via VGA (dual display) GNOME becomes very slow. Lowering the > resolution to 1024x768 (with mirror display) on both displays seems > to fix the issue. Could this be because my display (1400x1050) does > not scale well to higher resolutions like those with 16:9 and 16:10 > aspect ratios? > > Does anyone else experience slow downs when using external displays? > Maybe the GM4500HD in the newer thinkpads can handle this better. Last time I used external displays I did. Under gnome and GDM I had issues, but not under KDE. I wonder if 3D acceleration has a role in that. Is 3D acceleration deactivated when you plug a new monitor? I didn't investigate because it worked well under KDE at the time. Denis.
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