Hmm, that is strange. My scrolling is little better now than it was under 12.04 Beta 2, but still slower than all of my other applicatiions.
I, too, built from the Unix source code. I downloaded it from the Racket website; is that where you downloaded your unix source from? The slow scrolling is more noticeable when I use my trackpoint mouse to scroll than when I use two-finger scrolling on the trackpad. I am using a ThinkPad W520 bought this year with the integrated graphics card as the only enabled card in BIOS the vast majority of the time to increase battery life (Nvidia Optimus is not fully supported in Ubuntu yet). On Mon, May 7, 2012 at 1:36 PM, Neil Van Dyke <n...@neilvandyke.org> wrote: > Jackson Lawler wrote at 05/07/2012 01:13 PM: > > I can confirm that DrRacket works on Ubuntu 12.0, but I had to do some >> fiddling to get it to work, and the scrolling is painfully slow. >> > > DrRacket 5.2.1 scrolling is speedy for me under Ubuntu 12.04 on a > 5-year-old laptop. > > This is with a DrRacket I built from source code, not precompiled, but I > doubt that matters. And yes, it's all anti-aliased. > > Just a wild guess, but are you using a very slow X driver, such as an SVGA > one, rather than one more specific to your video device? > > (Not endorsing Ubuntu here. I just have a machine handy for testing.) > > Neil V. > > -- > http://www.neilvandyke.org/ > > ____________________ > Racket Users list: > http://lists.racket-lang.org/**users <http://lists.racket-lang.org/users> > -- Jackson Lawler
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