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Bug 168817 - After installing libXrandr 1.2.0-r1 running xrandr -v reports version 1.1
Summary: After installing libXrandr 1.2.0-r1 running xrandr -v reports version 1.1
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: High normal (vote)
Assignee: Gentoo Linux bug wranglers
Depends on:
Reported: 2007-03-01 01:10 UTC by Hal Engel
Modified: 2007-03-01 17:28 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---


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Description Hal Engel 2007-03-01 01:10:05 UTC
After installing libXrandr 1.2.0-r1 running xrandr -v reports version 1.1.  I finally figured out that I had to re-emerge xorg-server.  At that point xrandr -v reported that the version was 1.2.  I run revdep-rebuild after the libXrandr installation and it did not catch this problem (IE. nothing was rebuilt).

Reproducible: Always

Steps to Reproduce:
1. upgrade from libxrandr 1.1.x to 1.2.x
2. run revdep-rebuild 
3. xorg-server reports randr version as 1.1
4. emerge xorg-server corrects the problem.

Expected Results:  
Either the libxrandr ebuild should have warned that xorg-server may need to be re-emerged or revdep-rebuild should have detected that xorg-server needed to be rebuilt (or both).

I discovered the problem as a result of trying to use the new gamma functionality in xrandr.  It was failing on my machine even though I thought that I had all of the correct stuff installed.  Unfortunately even after re-emerging xorg-server it still fails.  I am thinking that perhaps the video card driver also needs to have support for this functionality and that the latest nvidia-drivers may not yet since they also do not support setting the gamma ramps for multiple monitors in twinview mode using the XVidModeExtension API.
Comment 1 Jakub Moc (RETIRED) gentoo-dev 2007-03-01 09:17:33 UTC
Uh; x11-libs/libXrandr != x11-apps/xrandr

$ equery b `which xrandr`
[ Searching for file(s) /usr/bin/xrandr in *... ]
x11-apps/xrandr-1.2.0 (/usr/bin/xrandr)
Comment 2 Hal Engel 2007-03-01 17:01:23 UTC
I guess I should have been more clear.  I have libXrandr 1.2.0-r1 installed along with xrandr 1.2.0.  

When I said I was trying to get the gamma stuff to work I should have said the gamma stuff in libxrandr since my c test code was calling XRRGetCrtcGamma and XRRGetCrtcGammaSize and failing on both calls.  I have since found out that the reason that these calls are failing is that the nvidia driver does not yet support these calls.

In any case this bug report is about the emerge of libXrandr and a revdep-rebuild failing to build everything needed to correctly install libXrandr 1.2.x.
Comment 3 Jakub Moc (RETIRED) gentoo-dev 2007-03-01 17:07:30 UTC
This bug just plain doesn't make sense. revdep-rebuild is for fixing broken linkage, nothing else. xrandr binary is not installed by libXrandr either.

Comment 4 Hal Engel 2007-03-01 17:28:59 UTC
I am not having a problem with xrandr.  And I didn't say it was installed by libXrandr.  The reason I mentioned xrandr is that running xrandr -v AFTER emerging libXrandr 1.2.0-r1 and xrandr 1.2.0 results in the reported version of RandR used by the "server" beging 1.1 and not 1.2.  In order to get xrandr -v to report the correct installed version of libXrandr I had to re-emerge xorg-server.  In other words the libXrandr upgrade is NOT complete until xorg-server is re-emerged (is that not a a broken linkage?).  

Shouldn't there at least be a warning issued by the ebuild that this is the case?  Thats all that I would like to have happen.  Again I should have been clearer in my writing.   Sorry to cause so much confusion.