Terrible aliasing at zoom levels lower than 100%

[phukariflux]

Images look really awful at 75% or 50% percent zoom levels.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: gthumb 3:3.0.2-0ubuntu2
ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7
Uname: Linux 3.5.0-19-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.6.1-0ubuntu6
Architecture: amd64
Date: Sun Dec 2 22:33:26 2012
InstallationDate: Installed on 2012-11-28 (4 days ago)
InstallationMedia: Xubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1)
MarkForUpload: True
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gthumb
UpgradeStatus: No upgrade log present (probably fresh install)

[Mantas Kriaučiūnas (mantas)]

Ghtumb package in Ubuntu is pretty old (ver. 3.0.2) while latest upstream version is 3.1.2 - please install latest Ghtumb 3.1.2 package from webupd8team repository ppa:webupd8team/gthumb (https://launchpad.net/~webupd8team/+archive/gthumb ), check if images still look awful at 75% or 50% percent zoom levels and write comment here :)

[phukariflux (phukariflux-deactivatedaccount)]

>please install latest Ghtumb 3.1.2 package

Still much more inferior to Eye of GNOME. For example with different test image I get very unpleasant jagged edges @ 75% zoom and blurriness @ 50% zoom. If it helps then ristretto 0.6.3 image viewer has similar problems.