>     On Sun, 15 May 2016 15:39:03 +0200, Emninger wrote:
>     > Am Sun, 15 May 2016 12:00:01 +0000
>     > schrieb Irrwahn <irrwahn@??? <mailto:irrwahn@freenet.de>>:
>     > [...]
>     >
>     >> As I already mentioned in an earlier message, I need the
>     >> non-free catalyst fglrx driver, which for reasons beyond my
>     >> knowledge is currently not available in neither testing nor
>     >> unstable. So I pull that one from Jessie.

>     <snip>

>     > Just one practical question: I notice the fglrx problem as well. How
>     > can i add it to my repositories? Reactivating Jessie?
>     >
>     > There would be the way to download it manually from the debian site and
>     > install with gdebi or apt, wouldn't it?

>     In principle, I see (at least) three viable ways.

>     First option would be the one you mentioned: Manually download
>     the Jessie packages (it's more than one!). I consider this the
>     most messy and least convenient method.

>     The second method would be to leave both Jessie and Ascii in
>     sources.list. However, to make this foolproof one might have
>     to additionally edit the apt preferences file, hence digging
>     down the apt-pinning rabbit hole. This option has the charm
>     that you could leave it that way and benefit pick the best of
>     both releases. However, I'm afraid I'd probably mess up big
>     time, if I tried to lead you trough this from just the top of
>     my head, right now.

>     The third method (which I would prefer) starts out like #2,
>     but after you installed the fglrx drivers you would disable
>     (comment out) the Jessie repositories again.

>     I think the last one is the easiest and safest way to get the
>     drivers. A perfectionist could argue, that additionally one
>     should leave enabled the non-free branch of jessie-security
>     to be on the safe side. But I guess now I started nit-picking
>     at a subatomic level. :P

>     TL;DR:
>     Enable Jessie; install fglrx et al.; disable Jessie; cigar. :D

>     > TIA & have a nice sunday :)

>     You are very welcome, and the same to you. :)

>     Regards
>     Urban