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Thanks for your reply. I rmmod the fb module and try again, and I found the
text blur still occur. I will rebuild a new kernel without fb inside and try it
again. By the way, I think I may give wrong description about
#3. The "disappear" I mean in #3 is the text blur will not happen
while using "xinit' to activate Xserver. And I don't mean the whole screen
will disappear. I am sorry about that. I also done some test about decreasing the size of
memory I pass to xf86InitFBManager function call. The text blur will be normal
when the size is below 4Mb. I know this size control the number of different slots
created by XAAInitPixmapCache. Since the driver didn’t report any HW accelerations
about characters, I guess the text part of the picture may be taken as some pixmaps
and call HW bitblt function to move it from offscreen to onscreen. If my assumption
is correct, would you please tell me what functions in XAA take charge of text such
that I can trace the command made by that function to check whether the content
of offscreen pixmaps are already wrong or the HW blur it during bitblt. Thanks for your help very much, cckuo -----Original Message----- From: xfree86-admin@xxxxxxxxxxx
[mailto:xfree86-admin@xxxxxxxxxxx] On Behalf Of Mark Vojkovich Sent: Friday, August 04, 2006 1:12 AM To: cckuo Cc: Subject: RE: Will the behaviors of XFree86
be effected by different kernel? Most likely, part of the offscreen video
memory that the driver told XAA it could use for pixmap caching is not
accessible so things placed there disappear. The order in which
things are started determines the packing order of offscreen pixmaps so
that's why #3 changes which things disappear. Most likely
it is an interaction with a kernel framebuffer device. Namely, the
kernel framebuffer device is setting some graphics card state that
prevents all the videoram from being accessible and the XFree86 driver
is unaware of this. This is unlikely to be an XAA
issue. If the XFree86 driver is assuming the
card is in the POSTed state, that may be a bad assumption in light of a
kernel framebuffer device. You might want to check what the kernel
framebuffer device is doing with regards to video memory
partitions, etc... Mark. On Thu, 3 Aug 2006, cckuo wrote: > Sorry for late replying your email. > The situation is attached as the picture and we
use the "rdesktop", a remote > connect tool to control English Server 2003, the
text part will be broken. > 1. After setting the option
"XaaNoOffscreenPixmaps" or > "XaaNoScreenToScreenCopy" I can't
reproduce the problem. I know these two > option will let the XAA determine whether it can
call the call back > functions that driver registered in the
beginning. > > 2. If I reduce the memory size reported to
FBmanager, less than 4Mb, it will > also disappear. I know this behavior will let the
XAA generate less big > slots. > > 3. if I use xinit instead of windows manager to
activate the Xserver, > execute "rdesktop" in xterm. It will
disappear. > > 4. So far it only happens on the English Server
2003, and English XP is OK. > > 5. use kernel 2.4.X it will disappear, but kernel
2.6.X will fail. > I am right now studying the source codes to
realize the relationships > between 1 and 2. > But I really confuse why the 3, 4 and 5 will
happen. > I am not quite sure whether it was a bug of XAA,
the windows manager or even > the driver's fault. But from 3, I guess it may
not driver's fault. > > If you have any opinions about this bug, please
let me know. > > Appreciate your help in advance. > Sincerely Yours, > cckuo > > > To: cckuo > Cc: > Subject: Re: Will the behaviors of
XFree86 be effected by > different kernel? > > > I wouldn't expect the behavior
of an XFree86 graphics driver to > change with a kernel except for, perhaps,
something related to 3D > using the DRI. I suppose it's also possible
that a kernel > framebuffer device could interfere with an
xfree86 driver in some > way. The XFree86 sis driver has a
"NoAccel" option you can use to > force software rendering. If there is still
rendering corruption > with that option, that would suggest that it's
not a driver > acceleration problem. > >
Mark. > > > cckuo wrote: > > > Dear X friends: > > Recently I play the "rdesktop", a
software like XP remote desktop, on > > XFree86 > > And the text will get blur only when I use
Kernel > > disappear when I change to kernel > > Since the accelerator in the XFree > acceleration > > in XAA will be effected by the kernel? > > Ps: My platform is sis741. > > Appreciate your help in advance. > > Sincerely Yours, > > cckuo > > > >
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