Fedora 23 and VirtualBox: VBox Guest Additions not working properly

[Klaus-Peter Schrage]

I have just upgraded to 23 from 22 in a virtual machine using dnf as 
decribed in the Fedora Wiki, which went rather smoothly for me.

After manually installing the Guest Additions, the features "seemless 
windows" and "automatic resize of the guest desktop" don't work (the 
respective options in the views menu are greyed out).

The VBox kernel modules are built ok, but I get a warning saying:
"unsupported pre-release version of X.Org server installed. Not 
installing the X.Org drivers."

The X log says that there is X.Org X Server 1.17.99.902 installed, which 
*is* a pre-release. I guess downgrading might cure the problem, but how?

Any advice from the wise persons on this list would be greatly appreciated.

[SternData]

On 11/05/2015 09:11 AM, Klaus-Peter Schrage wrote:
>  I have just upgraded to 23 from 22 in a virtual machine using dnf as
>  decribed in the Fedora Wiki, which went rather smoothly for me.
>
>  After manually installing the Guest Additions, the features "seemless
>  windows" and "automatic resize of the guest desktop" don't work (the
>  respective options in the views menu are greyed out).
>
>  The VBox kernel modules are built ok, but I get a warning saying:
>  "unsupported pre-release version of X.Org server installed. Not
>  installing the X.Org drivers."
>
>  The X log says that there is X.Org X Server 1.17.99.902 installed, which
>  *is* a pre-release. I guess downgrading might cure the problem, but how?
>
>  Any advice from the wise persons on this list would be greatly appreciated.
>
>  
Are you using VirtualBox from the virtualbox repos or from rpmfusion? 
I'm using the VirtualBox repo version (Oracle version) and it's working 
for me.

-- 
-- Steve

[Klaus-Peter Schrage]

Am 05.11.2015 um 16:41 schrieb SternData:
>  On 11/05/2015 09:11 AM, Klaus-Peter Schrage wrote:
> > I have just upgraded to 23 from 22 in a virtual machine using dnf as
> > decribed in the Fedora Wiki, which went rather smoothly for me.
> >
> > After manually installing the Guest Additions, the features "seemless
> > windows" and "automatic resize of the guest desktop" don't work
> (the
> > respective options in the views menu are greyed out).
> >
> > The VBox kernel modules are built ok, but I get a warning saying:
> > "unsupported pre-release version of X.Org server installed. Not
> > installing the X.Org drivers."
> >
> > The X log says that there is X.Org X Server 1.17.99.902 installed, which
> > *is* a pre-release. I guess downgrading might cure the problem, but how?
> >
> > Any advice from the wise persons on this list would be greatly 
> > appreciated.
> >
> >
>  Are you using VirtualBox from the virtualbox repos or from rpmfusion? 
>  I'm using the VirtualBox repo version (Oracle version) and it's 
>  working for me. 
I am using the VBox repo version as well (to be precise: 
VirtualBox-5.0-5.0.8_103449_fedora22-1.x86_64).

[Klaus-Peter Schrage]

Am 05.11.2015 um 17:00 schrieb Klaus-Peter Schrage:
>  Am 05.11.2015 um 16:41 schrieb SternData:
> > On 11/05/2015 09:11 AM, Klaus-Peter Schrage wrote:
> >> I have just upgraded to 23 from 22 in a virtual machine using dnf as
> >> decribed in the Fedora Wiki, which went rather smoothly for me.
> >>
> >> After manually installing the Guest Additions, the features "seemless
> >> windows" and "automatic resize of the guest desktop" don't
> work (the
> >> respective options in the views menu are greyed out).
> >>
> >> The VBox kernel modules are built ok, but I get a warning saying:
> >> "unsupported pre-release version of X.Org server installed. Not
> >> installing the X.Org drivers."
> >>
> >> The X log says that there is X.Org X Server 1.17.99.902 installed, 
> >> which
> >> *is* a pre-release. I guess downgrading might cure the problem, but 
> >> how?
> >>
> >> Any advice from the wise persons on this list would be greatly 
> >> appreciated.
> >>
> >>
> > Are you using VirtualBox from the virtualbox repos or from rpmfusion? 
> > I'm using the VirtualBox repo version (Oracle version) and it's 
> > working for me.
>  I am using the VBox repo version as well (to be precise: 
>  VirtualBox-5.0-5.0.8_103449_fedora22-1.x86_64). 
FWIW, I found how to downgrade X.Org-server to version 1.17 here:
http://forums.fedoraforum.org/showthread.php?t=306929

It's just:
# dnf --showduplicates --allowerasing --releasever=22 downgrade 
xorg-x11-server-Xorg
After doing so and manually installing the VBox Additions again, they 
work as expected.