On Wed, 26 Jul 2006, Michal [utf-8] Maru?ka wrote:
Hello,
I know about 2 bugs in X server which are quite reproducible with my programs.
I use CVS from a month ago, but I noticed the first bug months ago already.
I use mga driver.
1/ There is a way to see a screen full of pixmaps (instead of what should be on
the screen).
I can reproduce this bug with sawfish WM.
It has a mode to flip between viewspaces, while moving a window by mouse
movement (and bumping into the border of the screen).
When I do such movement w/ keyboard using mouse emulation, I can trigger this funny
bug. Suddenly, after Sawfish does a series of requests to move windows, and
warp pointer, I see pictures which are used in my (running) firefox browser,
and I explain this that I see "off-screen" pixmaps.
To recover from the wrong display I can either switch to another console, or
cycle resolution with C-M-KP+/-.
I can't really help you with this problem, as I have no MGA hardware.
2/
DBE (double-buffer extension) operations can make the server segfault.
My guess is, that it is caused by the double-buffered window being too large:
the DBE request are made by my quick & dirty experimental code for Sawfish, to
draw window's title-bar, and the bug happens, when I construct a too large
window (building gtk view-text widget with a long line inside, w/o scrolling
enabled).
Here's the ....
Caught signal 11.
Stack trace:
0: 0x808da2c: 0x808da10 xf86ShowStackTrace + 0x1c
Module "XFree86"
1: 0x808db13: 0x808dab0 xf86SigHandler + 0x63
Module "XFree86"
2: 0xffffe420: 0xffffe420 __kernel_sigreturn + 0x0
Module ""
3: 0x813ca09: 0x813c8d0 miSpriteCopyArea + 0x139
Module "/usr/xfree86-4.6/bin/XFree86"
4: 0xb7f95420: 0xb7f95360 miDbeSwapBuffers + 0xc0
Module "/usr/xfree86-4.6/lib/modules/extensions/libdbe.a:midbe.o"
Section ".text"
5: 0xb7f967b4: 0xb7f96690 ProcDbeSwapBuffers + 0x124
Module "/usr/xfree86-4.6/lib/modules/extensions/libdbe.a:dbe.o"
Section ".text"
6: 0x80c5fba: 0x80c5e60 Dispatch + 0x15a
Module "XFree86"
7: 0x80d2327: 0x80d1f30 main + 0x3f7
Module "XFree86"
Fatal server error:
Server aborting
That displacement in miSpriteCopyArea doesn't match anything I have here,
likely because I have different compiler versions. Please do ...
gdb /usr/xfree86-4.6/bin/XFree86
disass miSpriteCopyArea
quit
... and send the resulting output.
And I would like to ask, if there's a hope to get support for RV370[Radeon
X300SE] in xfree86.
Well, such support would have to be contributed, as the author/maintainer of
Radeon support has moved on to the X.Org Foundation.
Thanks!
... and thank you!
Marc.
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