How to enable composite in Fedora/KDE

egreshko · 03-25-10, 05:53 AM

Hi,

Running Fedora 12 and KDE. I've got the latest nvidia driver installed... 195.36.15

I think I have a good xorg.conf but I can't get KDE to allow "Enable desktop effects". The Compositing State always shows "Compositing is disabled".

What do I need to do to get this working?

Thanks

**AaronP** · 03-25-10, 10:13 AM

According to your log file, Composite is enabled just fine. Does xdpyinfo show "Composite" in the extensions section? If so, something is probably broken inside KDE.

egreshko · 03-25-10, 03:13 PM

Quote:

Originally Posted by AaronP

According to your log file, Composite is enabled just fine. Does xdpyinfo show "Composite" in the extensions section? If so, something is probably broken inside KDE.

It does show "Composite". But, it also lists XINERAMA, twice.

In reading Chapter 23 of the driver's README it states that compositing will be disabled if XINERAMA is enabled.

So, if that is what is happening, then how do I stop XINERAMA from being enabled?

**danix** · 03-25-10, 04:26 PM

You already have

Option "Xinerama" "0"

in ServerLayout, which should do it.

Actually, scrolling further down, you also have it in "Extensions". Try changing the line in Extensions to read

Option "Xinerama" "Disable"

instead.

hermier · 03-25-10, 05:15 PM

Hi, I have a user on frugalware that faced the same problem. And for which I already tried to disable various extensions without success.
Reverting to xorg-server 1.7.5 solved the problem, so it seems to be related to one of the patch introduced for 1.7.6. But I was not able to track the culprit yet.

egreshko · 03-25-10, 06:47 PM

Quote:

Originally Posted by danix

You already have

Option "Xinerama" "0"

in ServerLayout, which should do it.

Actually, scrolling further down, you also have it in "Extensions". Try changing the line in Extensions to read

Option "Xinerama" "Disable"

instead.

I thought "0" was equivalent to "False" and "Disable". And, "1" was equivalent to "True" and "Enable".

I tried you suggestion.... Same results.

FWIW, nvidia-xconfig was the process that generated Option "Xinerama" "0".

cyberf0x · 03-25-10, 07:02 PM

You thought right, it's just developers are too lazy to fix the driver.

egreshko · 03-25-10, 07:09 PM

Quote:

Originally Posted by hermier

Hi, I have a user on frugalware that faced the same problem. And for which I already tried to disable various extensions without success.
Reverting to xorg-server 1.7.5 solved the problem, so it seems to be related to one of the patch introduced for 1.7.6. But I was not able to track the culprit yet.

Downgrading to

xorg-x11-server-Xorg-1.7.1-7.fc12.i686
xorg-x11-server-common-1.7.1-7.fc12.i686

Didn't fix the problem... But, maybe other packages need to be downgraded as well....

I may go ahead and reinstall with all the older xorg packages to see if it fixes the issue.... Takes time, but this is a new clean install...

cyberf0x · 03-25-10, 07:15 PM

Downgrade to 1.6.XX and check again.

egreshko · 03-25-10, 08:32 PM

Quote:

Originally Posted by cyberf0x

Downgrade to 1.6.XX and check again.

Is that just a "shot in the dark" or "known to work'?

FWIW, Fedora 12 doesn't have xorg 1.6. Would have to go to F11.... Not something I'd be thrilled about trying as F11 has some drawbacks for me.

hermier · 03-26-10, 03:37 AM

Quote:

Originally Posted by egreshko

Is that just a "shot in the dark" or "known to work'?

FWIW, Fedora 12 doesn't have xorg 1.6. Would have to go to F11.... Not something I'd be thrilled about trying as F11 has some drawbacks for me.

For me it's a shot in the dark, else it would have been reported earlier.

egreshko · 03-26-10, 04:17 AM

Quote:

Originally Posted by hermier

For me it's a shot in the dark, else it would have been reported earlier.

Yes, this does appear to be an xorg server problem.

I have found that F12 is running xorg 1.7, which according to the release notes of X11R7.5 they are equivalent. OpenSuse 11.2 is running X11R7.4 which equates to 1.5. I just installed OpenSuse 11.2 and all is well.

What a pain. Looks like I have to decide between distros and see which one has the features that mean the most to me....and wonder if I stick with OpenSuse won't the same issue pop up at a later date when they update the xorg server.

Thanks....

03-25-10, 10:13 AM	#2
AaronP NVIDIA Corporation Join Date: Mar 2005 Posts: 2,487	Re: How to enable composite in Fedora/KDE According to your log file, Composite is enabled just fine. Does xdpyinfo show "Composite" in the extensions section? If so, something is probably broken inside KDE.

03-25-10, 04:26 PM	#4
danix NVIDIA Corporation Join Date: Feb 2010 Location: Santa Clara, CA Posts: 237	Re: How to enable composite in Fedora/KDE You already have Option "Xinerama" "0" in ServerLayout, which should do it. Actually, scrolling further down, you also have it in "Extensions". Try changing the line in Extensions to read Option "Xinerama" "Disable" instead.

03-25-10, 05:15 PM	#5
hermier Registered User Join Date: Dec 2005 Posts: 26	Re: How to enable composite in Fedora/KDE Hi, I have a user on frugalware that faced the same problem. And for which I already tried to disable various extensions without success. Reverting to xorg-server 1.7.5 solved the problem, so it seems to be related to one of the patch introduced for 1.7.6. But I was not able to track the culprit yet.

03-25-10, 07:02 PM	#7
cyberf0x Registered User Join Date: Jun 2004 Posts: 50	Re: How to enable composite in Fedora/KDE You thought right, it's just developers are too lazy to fix the driver.

03-25-10, 07:15 PM	#9
cyberf0x Registered User Join Date: Jun 2004 Posts: 50	Re: How to enable composite in Fedora/KDE Downgrade to 1.6.XX and check again.