As of update 10 this is now fixed in Sun Java 6.
http://bugs.sun.com/view_bug.do?bug_id=6636469
** Changed in: sun-java6 (Ubuntu)
Status: In Progress => Fix Released
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Xinerama prevents Java fullscreen exclusive mode in Gutsy
https://bugs.launchpad.net/bugs/154613
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Status in “icedtea-java7” source package in Ubuntu: Won't Fix
Status in “openjdk-6” source package in Ubuntu: Fix Released
Status in “sun-java6” source package in Ubuntu: Fix Released
Bug description:
Update: This bug has evolved a little, the summary for this bug now reflects
the root cause of the problem, discovered later in the comments. It seems Java
fullscreen exclusive mode is not supported when Xinerama is present in Xorg. In
Gutsy it seems it is there on all installations (that I've tested) which means
no Java fullscreen exclusive mode apps/games will run.
Original Description: While testing a Java fullscreen mode application in Gutsy
I have discovered that Java does not find the full list of supported display
modes it only lists the current screen resolution even though the xrandr
command lists all supported screen modes. Consequently it cannot use full
screen exclusive mode in any other resolution than the current one in use. This
is a regression as the problem does not occur in Feisty.
I've tested this on 2 completely different machines first with Feisty and then
with Gutsy.
I've attached a sample Java program DisplayModeLister which outputs a list of
supported screen modes. Here's it's output on Gutsy:
1: 1440 x 900 @ 0Hz -1bit
Here's the xrandr command's output on Gutsy:
Screen 0: minimum 320 x 200, current 1440 x 900, maximum 1440 x 1200
VGA-0 disconnected (normal left inverted right)
LVDS connected 1440x900+0+0 (normal left inverted right) 0mm x 0mm
1440x900 59.9*+
1280x800 60.0
1280x768 60.0
1024x768 60.0
800x600 60.3
640x480 59.9
S-video disconnected (normal left inverted right)
DVI-0 disconnected (normal left inverted right)
Here's DisplayModeLister's output on the same machine running Feisty:
1: 1440 x 900 @ 60Hz -1bit
2: 1024 x 768 @ 60Hz -1bit
3: 800 x 600 @ 60Hz -1bit
4: 640 x 480 @ 60Hz -1bit
5: 640 x 350 @ 60Hz -1bit
6: 640 x 400 @ 60Hz -1bit
7: 720 x 400 @ 60Hz -1bit
8: 1152 x 864 @ 60Hz -1bit
9: 832 x 624 @ 60Hz -1bit
10: 1280 x 768 @ 60Hz -1bit
11: 1280 x 800 @ 60Hz -1bit
12: 1152 x 768 @ 60Hz -1bit
This result is the same in Java 5 and 6. Here are the package versions:
Feisty:
* sun-java6 6-00-2ubuntu2
* xorg 1:7.2-0ubuntu11
* libxrandr 1.2.0-3ubuntu1
* xrandr 1.0.2-0ubuntu1
Gutsy:
* sun-java6 6-03-0ubuntu2
* xorg 1:7.2-5ubuntu13
* libxrandr 2:1.2.1-1
* xrandr 1:1.2.2-0ubuntu1
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