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Xubuntu on Macbook pro - video lag, and compile requirements?

Hi all,

I've got Xubuntu installed (dualbooting) on my MacBook Pro, and as far as I can tell the video settings are configured correctly (1440x900, at least).

However, moving windows, or scrolling through applications results in the kind of visible lag that you usually see when you're running on a system with not nearly enough memory - scrolling isn't smooth, and you can see the windows jerk across the screen when I try to move them, rather than smoothly moving.

Did I miss anything? Any kind of video memory settings that I can play around with? This thing has 2gb of memory; there is no way that XFCE should be in any way slow.

Some random information:
From Xorg.conf:

Code:

Section "Module"

        Load        "bitmap"

        Load        "ddc"

        Load        "dri"

        Load        "extmod"

        Load        "freetype"

        Load        "glx"

        Load        "int10"

        Load        "type1"

        Load        "vbe"

EndSection

And:

Code:

[65:laura@elda ~]$ glxinfo

name of display: :0.0

X Error of failed request:  GLXBadContext

  Major opcode of failed request:  142 (GLX)

  Minor opcode of failed request:  5 (X_GLXMakeCurrent)

  Serial number of failed request:  17

  Current serial number in output stream:  17

[67:laura@elda ~]$ glxgears -printfps

5434 frames in 5.1 seconds = 1075.330 FPS

5360 frames in 5.0 seconds = 1067.382 FPS

5380 frames in 5.0 seconds = 1073.953 FPS

My second question is regarding compiling, and it's an issue that I have with just about any package-managed distro that I've tried. I want to give PyPanel a whirl, but it requires Imlib2, and Imlib2 requires that I ./configure && make && make install it. When I try --

Code:

root@elda:/home/laura/Downloads/imlib2-1.3.0# ./configure

checking build system type... i686-pc-linux-gnulibc1

checking host system type... i686-pc-linux-gnulibc1

checking for gcc... gcc

checking for C compiler default output file name... configure: error: C compiler cannot create executables

See `config.log' for more details.

Not really sure what the problem is here. Usually it's that the distro doesn't bother to install gcc...this seems like something else.

Any suggestions are appreciated!

Question #1: Do you have compositing enabled? Look at Window Manager Tweaks under settings. If so, are you using hardware or software acceleration?

Question #2: Do what the configure script tells you to do

Code:

See `config.log' for more details.

I'm a bit unsure about the compositing question - there's nothing even remotely like that in Window Manager Tweaks, or any of the other dialogs under Settings.

I've tried updating XFCE, but apt-get can't find anything specifically called xfce4, and putting it in a regex results in about 150 packages, none of which really look right.

Regarding the 2nd, I did. It wasn't a hell of a lot of help:

Code:

configure:2390: gcc -V >&5

gcc: '-V' option must have argument

configure:2393: $? = 1

configure:2416: checking for C compiler default output file name

configure:2443: gcc    conftest.c  >&5

/usr/bin/ld: crt1.o: No such file: No such file or directory

collect2: ld returned 1 exit status

configure:2446: $? = 1

configure: failed program was:

| /* confdefs.h.  */

| #define PACKAGE_NAME ""

| #define PACKAGE_TARNAME ""

| #define PACKAGE_VERSION ""

| #define PACKAGE_STRING ""

| #define PACKAGE_BUGREPORT ""

| /* end confdefs.h.  */

| 

| int

| main ()

| {

| 

|  ;

|  return 0;

| }

configure:2485: error: C compiler cannot create executables



...<snip>...



configure: exit 77

Thanks --