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Re: titlebars with aixgl and nvidia drivers fc6

listman wrote:
On Tue, 2006-10-17 at 12:10 -0500, Marc Schwartz wrote:
Kristian Høgsberg wrote:
Adam Jackson wrote:
Gianluca Cecchi wrote:
Hello all,
after applying what explained in various postings, I can enable
desktop effects in my updated fc6 system with 9625 beta nvidia drivers
(installed by nvidia package) under the preferences submenu.
Only problem is about titlebars and windows borders disappearing.
Found some threads about this, but nothing solving my problem.
They suddenly appears as I disable again desktop effects.
Make sure gnome-window-decorator is running, otherwise it's nVidia's bug.
I've seen this too, with gnome-window-decorator running, so it looks like there's a problem with nvidia's driver, but it could also be something with our compiz patch set, I guess.

There is a known bug with the 9625 and the new 9626 beta drivers pertaining to the implementation of the TFP (texture from pixmap) functionality. This appears to result in various issues with compositing managers, whether it be compiz, compiz-quinn or beryl.

nVidia is aware of this and is hopefully moving forward with a fix. It appears to be related to the amount of video ram available. So it will show up at varying times depending upon how much video ram is being used as a consequence of how many apps/windows are open, how many displays are being run (ie. single display versus TwinView), and so forth.

I posted a "me too" bug report on this yesterday here (#13):


and take note of post #4 by jamesjones.

Many of the reports that I have seen in various forums regarding the presence or lack of window decorations, white/black/blank windows/cubes, etc. may be an outcome of this underlying issue. The white window/cube issue seems to be more prevalent with XGL installations as opposed to AIGLX systems.

Note that previously, I had used XGL on my FC5 system with the current stable nVidia driver (8774) and had compiz-quinn running without problems. So we seem to be in a bit of transition with nVidia's current beta drivers supporting TFP and the use of AIGLX.


Marc Schwartz

I know most have already tried this but I thought it might help the new

This is how a few people have gotten the borders to show up.
Under Section "ServerLayout" add
	Option		"AIGLX"	"true"
Under Section "Device" add
	Option	"AddARGBGLXVisuals" "on"
also make sure your screen depth is set to 24, I can not get it to work
set at 32
I'm using nvida beta driver 9625 (didn't know ther was a new one) and
still stuck on T3 YMMV

HTH someone

FWIW, I also get inconsistent behavior relative to getting or not getting the emerald window decorations and I do have, as noted in the nvnews thread, all of those options set.

I do think that this rather unpredictable behavior for nVidia beta driver users is a consequence of the underlying TFP implementation bug. The inconsistency being an outcome of the vram issue and happening or not happening depending upon how many windows/apps are open, etc and where the system stands with respect to vram use. How much vram is on the card is also of course a key factor, such that those with higher capacity video cards of say 256 Mb and higher, will see this behavior less than those with say 32 or 64 Mb cards.



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