Bug#668828: Appears virtual desktop stays large regardless of efforts to limit.
On Die, 2012-04-17 at 13:11 -0500, Straight BolognaSandwich wrote:
>
> In Debian 7 Gnome Classic with the aforementioned "workaround 3" in
> place to get around display corruption, I see: xrandr -q
> Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 4096 x 4096
> DVI-I-2 connected 1280x1024+0+0 (normal left inverted right x axis y
> axis) 338mm x 270mm
> 1280x1024 60.0*+ 75.0
> 1152x864 75.0
> 1024x768 75.1 60.0
> 800x600 75.0 60.3
> 640x480 75.0 60.0
> 720x400 70.1
>
> Note the maximum is still showing 4096 x 4096 even though I've done
> all I can think of to limit it. I also can drag windows off my screen
> in all four directions.
That's normal, it would be up to the window manager to prevent this.
> IF I remotely understand what is going on, this could also present
> itself as poor video performance in addition to the display
> corruption. It appears that video memory is still being allocated for
> an area of 4096 x 4096.
No. With KMS, video memory is dynamically reallocated for the actual
current screen size, 1280x1024 in this case. That's why the hardware
limits can always be advertised for the maximum size.
--
Earthling Michel Dänzer | http://www.amd.com
Libre software enthusiast | Debian, X and DRI developer
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