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Bug 1588 - Kern3l 2.2 Frame Buffering vs. Netscape
Summary: Kern3l 2.2 Frame Buffering vs. Netscape
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: kernel
Version: 5.2
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: David Lawrence
QA Contact:
Depends On:
TreeView+ depends on / blocked
Reported: 1999-03-17 21:14 UTC by Bob Houghton
Modified: 2008-05-01 15:37 UTC (History)
0 users

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 1999-07-08 16:30:00 UTC

Attachments (Terms of Use)

Description Bob Houghton 1999-03-17 21:14:44 UTC
I upgraded a 5.2 RedHat install to the new 2.2 Kernel.  I
enabled frame buffering for a S3 Trio 3d (86C366) video
chip.  Everything works wonderful.  The kernel is fast, and
X-Windows rocks when run through this new feature.
Unfortunately, there is a bug.

When I run netscape, then run a Java applet, Netscape
crashes.  I installed another video card and turned off
frame buffering, and it works, so I am pretty certain that
it is something to do with frame buffering and Netscape's

Comment 1 Bob Houghton 1999-04-14 00:32:59 UTC
Has anyone approached this problem?  It will sure to be a big issue

Comment 2 Bob Houghton 1999-04-15 21:33:59 UTC
DKL, I have about 2500 installs that need this to work.  Have you
heard anything????

Comment 3 Bill Nottingham 1999-04-16 00:06:59 UTC
I haven't been able to duplicate it here. Is there a specific
web site you can point me to that causes it to die?

Comment 4 Bob Houghton 1999-04-16 16:16:59 UTC
I can get it to crash by selecting the Java console from the netscape
menu's. [Communicator->tools->Java Console]  I just upgraded to kernel
2.2.5, and I am using Communicator 4.5.  I used the instructions at to setup for Frame Buffering, and the
instructions at
for the kernel 2.2.5 install.  The machine I have been working with is
an IBM 300GL.  The video chipset is the S3 Trio 3D (86C366), which
explains why I am trying to do frame buffering, i.e., no suitable
X-Window drivers I know of.

Everything else seems to work flawlessly using frame buffer.  It seems
to only affect Java within netscape.  When I installed another video
card, and turned off frame buffering, it worked fine even with the
same kernel image.

I can not remember if I tried this on a different machine.  If you
like, I can give it a try on a different piece of hardware.

Comment 5 Bob Houghton 1999-04-21 22:16:59 UTC
I tried this on an Acer box with a different chip.  Running off of a
normal X-Window driver, it worked.  With Frame Buffering, everything
worked until Netscape called a Java function.

I've been told that Caldera has promised to find a solution for us.
I'll keep you updated.

Thanks -- Bob

Comment 6 Bill Nottingham 1999-04-21 23:34:59 UTC
How many bpp are you running at?
Also, are you running XF86_Xvfb on top of the frame
buffer, or with a standard server?

Comment 7 Bob Houghton 1999-04-22 15:55:59 UTC
I am running something called XF68_FBDev I downloaded from  I am using "VGA=791" in my lilo prompt,
which is indicated in to
be 65,536 colors at 1024x768.  Do me a favor, and send me a copy of
your driver and XF86Config file, for it might be wise to rule out
problems with the code I am using.  Also, what version of Netscape are
you using?  I am using version 4.5 downloaded from the Netscape web
site for the 2.0 kernel; there is none for the 2.2 kernel.

Comment 8 Bill Nottingham 1999-04-22 19:15:59 UTC
What I've been testing on is the following:
Matrox Millenium using matroxfb
XF86_FBDev  from the release
Netscape 4.51 (glibc-2.0 version)

Are you using the glibc or libc5 version of Netscape?
(Running ldd on it will tell you; if a shows
up at all, it's the libc5 version.)

Comment 9 Bill Nottingham 1999-04-22 21:24:59 UTC
Also, are you running with a font server or with a local
font path? If so, what is the font path set to?

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