java redisplay problem on intel driver

["Jóhann B. Guðmundsson"]

Per Bothner wrote:
> Could people try the attached Java test program?
> There is a bad redisplay problem for large (greater than around 1000
> lines) text windows using a TextArea (or a Swing JTextPane).
> I have the feeling it is specific to the Intel driver.
>
> To test it, you need to have openjdk "java" installed and
> in your path:
>
> $ java -version
> java version "1.6.0_0"
> IcedTea6 1.4 (fedora-7.b12.fc10-i386) Runtime Environment (build 
> 1.6.0_0-b12)
> OpenJDK Server VM (build 10.0-b19, mixed mode)
>
> Java is provided by java-1.6.0-openjdk-1.6.0.0-7.b12.fc10.i386.
> However, the same problem occurs with jdk1.6.0 update 11
> downloaded directly from Sun, as well as jdk 1.5.0_05.
>
> To test it, put TextTest.java in a temporary directory,
> cd to that directory, compile it, and run it:
>   $ javac TextTest.java
>   $ java TextTest
> Now try scrolling back and forth a bit.  What happens for me is that
> the text lines will be over-written multiple times on top of each other.
>
> The interesting thing is that only the first 700 lines
> or so are garbled - the remaining lines are fine.
>
> My guess is that there is some weird interaction between Java,
> the Gtk peers, and the intel driver, since otherwise more people
> would have reported this problem.  Also, I have tried it on an 
> NVidia-based laptop, and well as with the vesa driver (iirc).
> It would be helpful to get some data-points before I decide
> whether to complain to Sun or to Intel or to Gnome!
Works fine in rawhide I can see the lines ( Line 1. to Line 3000 )
clearly, scroll up and down, no corruption nothing.
Shall reboot into F10 and try again.

NV driver.

$ java -version
java version "1.6.0_0"
IcedTea6 1.4 (fedora-8.b14.fc11-x86_64) Runtime Environment (build 
1.6.0_0-b14)
OpenJDK 64-Bit Server VM (build 14.0-b08, mixed mode)

java-1.6.0-openjdk-plugin-1.6.0.0-8.b14.fc11.x86_64
java-1.6.0-openjdk-1.6.0.0-8.b14.fc11.x86_64
java-1.6.0-openjdk-devel-1.6.0.0-8.b14.fc11.x86_64 # Testers install 
this package if you lack the java compiler

Note Tester
If you dont have the Java programming language compiler ( javac ) installed
install the java-1.6.0-openjdk-devel package..

JBG