Re: Cannot print 2 pages on 1 sheet with evince.
I have experienced similar problems with evince. Check your media settings. I have found if I use the borderless setting, it won't give you the option to print double-sided. But if I change the media to US Letter, duplexing works for me. I've also found Acrobat Reader (though bigger than I like) does allow duplexing on borderless settings.
Gigabyte GA-M57SLI-S4; AMD X2 5600+; 4GB Mushkin Enhanced DDR2 800; Seagate 250GB 7200.10 (SATA);
ASUS DVD-E616A3T (SATA); Samsung SH-S182M (PATA); EVGA GT 220 (all work ootb)