It doesn't seem to be parsing the extra list of sources for the other arch, leaving the other arch packages installed which prevents downgrading. sarvatt@kyoko{~/source/ia32-libs-20090808ubuntu27}:sudo ppa-purge xorg-edgers [sudo] password for sarvatt: Updating packages lists PPA to be removed: xorg-edgers ppa comm: file 2 is not in sorted order Package revert list generated: intel-gpu-tools/oneiric lib32ffi6/oneiric libcairo2/oneiric libcairo2-dev/oneiric libcairo-gobject2/oneiric libcairo-script-interpreter2/oneiric libdrm2/oneiric libdrm-dev/oneiric libdrm-intel1/oneiric libdrm-nouveau1a/oneiric libdrm-radeon1/oneiric libegl1-mesa/oneiric libegl1-mesa-dev/oneiric libegl1-mesa-drivers/oneiric libffi6/oneiric libffi-dev/oneiric libgbm1/oneiric libgl1-mesa-dev/oneiric libgl1-mesa-dri/oneiric libgl1-mesa-dri-experimental/oneiric libgl1-mesa-glx/oneiric libglapi-mesa/oneiric libgles1-mesa/oneiric libgles2-mesa/oneiric libglu1-mesa/oneiric libglu1-mesa-dev/oneiric libkms1/oneiric libopenvg1-mesa/oneiric libpciaccess0/oneiric libpciaccess-dev/oneiric libpixman-1-0/oneiric libpixman-1-dev/oneiric libtxc-dxtn0/oneiric libunity-core-4.0-4/oneiric libva1/oneiric libva-dev/oneiric libva-egl1/oneiric libva-glx1/oneiric libva-tpi1/oneiric libva-x11-1/oneiric libwayland0/oneiric libwayland-dev/oneiric linux-libc-dev/oneiric linux-tools-common/oneiric mesa-common-dev/oneiric unity/oneiric unity-common/oneiric unity-services/oneiric x11-common/oneiric xorg/oneiric xserver-common/oneiric xserver-xorg/oneiric xserver-xorg-core/oneiric xserver-xorg-dev/oneiric xserver-xorg-input-all/oneiric xserver-xorg-input-evdev/oneiric xserver-xorg-input-mouse/oneiric xserver-xorg-input-synaptics/oneiric xserver-xorg-input-vmmouse/oneiric xserver-xorg-input-wacom/oneiric xserver-xorg-video-all/oneiric xserver-xorg-video-apm/oneiric xserver-xorg-video-ark/oneiric xserver-xorg-video-ati/oneiric xserver-xorg-video-chips/oneiric xserver-xorg-video-cirrus/oneiric xserver-xorg-video-fbdev/oneiric xserver-xorg-video-i128/oneiric xserver-xorg-video-intel/oneiric xserver-xorg-video-mach64/oneiric xserver-xorg-video-mga/oneiric xserver-xorg-video-neomagic/oneiric xserver-xorg-video-nouveau/oneiric xserver-xorg-video-openchrome/oneiric xserver-xorg-video-qxl/oneiric xserver-xorg-video-r128/oneiric xserver-xorg-video-radeon/oneiric xserver-xorg-video-rendition/oneiric xserver-xorg-video-s3/oneiric xserver-xorg-video-s3virge/oneiric xserver-xorg-video-savage/oneiric xserver-xorg-video-siliconmotion/oneiric xserver-xorg-video-sis/oneiric xserver-xorg-video-sisusb/oneiric xserver-xorg-video-tdfx/oneiric xserver-xorg-video-trident/oneiric xserver-xorg-video-tseng/oneiric xserver-xorg-video-vesa/oneiric xserver-xorg-video-vmware/oneiric xserver-xorg-video-voodoo/oneiric xutils-dev/oneiric Disabling xorg-edgers PPA from /etc/apt/sources.list.d/xorg-edgers-ppa-oneiric.list Disabling xorg-edgers PPA from /etc/apt/sources.list.d/xorg-edgers-ppa-natty.list Updating packages lists Reading package lists... Done Building dependency tree Reading state information... Done E: Release 'oneiric' for 'libtxc-dxtn0' was not found E: Release 'oneiric' for 'libva-egl1' was not found Unable to find an archive "oneiric" for the package "libtxc-dxtn0" Unable to find an archive "oneiric" for the package "libva-egl1" Unable to find an archive "oneiric" for the package "libtxc-dxtn0" Unable to find an archive "oneiric" for the package "libva-egl1" The following packages will be DOWNGRADED: intel-gpu-tools lib32ffi6 libcairo-gobject2 libcairo-script-interpreter2 libcairo2 libcairo2-dev libdrm-dev libdrm-intel1{b} libdrm-nouveau1a{b} libdrm-radeon1{b} libdrm2{b} libegl1-mesa libegl1-mesa-dev libegl1-mesa-drivers libffi-dev libffi6{b} libgbm1 libgl1-mesa-dev libgl1-mesa-dri{b} libgl1-mesa-dri-experimental libgl1-mesa-glx{b} libglapi-mesa{b} libgles1-mesa libgles2-mesa libglu1-mesa libglu1-mesa-dev libkms1 libopenvg1-mesa libpciaccess-dev libpciaccess0{b} libpixman-1-0 libpixman-1-dev libunity-core-4.0-4 libva-dev libva-glx1 libva-tpi1 libva-x11-1 libva1 libwayland-dev libwayland0 linux-libc-dev linux-tools-common mesa-common-dev unity unity-common unity-services x11-common xorg xserver-common xserver-xorg xserver-xorg-core xserver-xorg-dev xserver-xorg-input-all xserver-xorg-input-evdev xserver-xorg-input-mouse xserver-xorg-input-synaptics xserver-xorg-input-vmmouse xserver-xorg-input-wacom xserver-xorg-video-all xserver-xorg-video-apm xserver-xorg-video-ark xserver-xorg-video-ati xserver-xorg-video-chips xserver-xorg-video-cirrus xserver-xorg-video-fbdev xserver-xorg-video-i128 xserver-xorg-video-intel xserver-xorg-video-mach64 xserver-xorg-video-mga xserver-xorg-video-neomagic xserver-xorg-video-nouveau xserver-xorg-video-openchrome xserver-xorg-video-qxl xserver-xorg-video-r128 xserver-xorg-video-radeon xserver-xorg-video-rendition xserver-xorg-video-s3 xserver-xorg-video-s3virge xserver-xorg-video-savage xserver-xorg-video-siliconmotion xserver-xorg-video-sis xserver-xorg-video-sisusb xserver-xorg-video-tdfx xserver-xorg-video-trident xserver-xorg-video-tseng xserver-xorg-video-vesa xserver-xorg-video-vmware xserver-xorg-video-voodoo xutils-dev The following packages will be REMOVED: libtar0{u} libxcb-xv0{u} xul-ext-calendar-timezones{u} 0 packages upgraded, 0 newly installed, 89 downgraded, 3 to remove and 3 not upgraded. Need to get 16.3 MB of archives. After unpacking 2,540 kB will be freed. The following packages have unmet dependencies: libdrm-radeon1: Breaks: libdrm-radeon1 (!= 2.4.26-1ubuntu1) but 2.4.27+git20111104.961bf9b5-0ubuntu0sarvatt~oneiric is installed. libdrm-radeon1: Breaks: libdrm-radeon1 (!= 2.4.27+git20111104.961bf9b5-0ubuntu0sarvatt~oneiric) but 2.4.26-1ubuntu1 is to be installed. libva-driver-intel: Depends: libva1 (>= 1.0.14) but 1.0.12-2 is to be installed. libgl1-mesa-dri: Breaks: libgl1-mesa-dri (!= 7.11-0ubuntu3) but 7.12.0~git20111118.a43908fe-0ubuntu0sarvatt~oneiric is installed. libgl1-mesa-dri: Breaks: libgl1-mesa-dri (!= 7.12.0~git20111118.a43908fe-0ubuntu0sarvatt~oneiric) but 7.11-0ubuntu3 is to be installed. libgl1-mesa-glx: Breaks: libgl1-mesa-glx (!= 7.11-0ubuntu3) but 7.12.0~git20111118.a43908fe-0ubuntu0sarvatt~oneiric is installed. libgl1-mesa-glx: Breaks: libgl1-mesa-glx (!= 7.12.0~git20111118.a43908fe-0ubuntu0sarvatt~oneiric) but 7.11-0ubuntu3 is to be installed. libglapi-mesa: Breaks: libglapi-mesa (!= 7.11-0ubuntu3) but 7.12.0~git20111118.a43908fe-0ubuntu0sarvatt~oneiric is installed. libglapi-mesa: Breaks: libglapi-mesa (!= 7.12.0~git20111118.a43908fe-0ubuntu0sarvatt~oneiric) but 7.11-0ubuntu3 is to be installed. libffi6: Breaks: libffi6 (!= 3.0.11~rc1-2) but 3.0.11~rc1-5~oneiric1 is installed. libffi6: Breaks: libffi6 (!= 3.0.11~rc1-5~oneiric1) but 3.0.11~rc1-2 is to be installed. libdrm2: Breaks: libdrm2 (!= 2.4.26-1ubuntu1) but 2.4.27+git20111104.961bf9b5-0ubuntu0sarvatt~oneiric is installed. libdrm2: Breaks: libdrm2 (!= 2.4.27+git20111104.961bf9b5-0ubuntu0sarvatt~oneiric) but 2.4.26-1ubuntu1 is to be installed. libdrm-nouveau1a: Breaks: libdrm-nouveau1a (!= 2.4.26-1ubuntu1) but 2.4.27+git20111104.961bf9b5-0ubuntu0sarvatt~oneiric is installed. libdrm-nouveau1a: Breaks: libdrm-nouveau1a (!= 2.4.27+git20111104.961bf9b5-0ubuntu0sarvatt~oneiric) but 2.4.26-1ubuntu1 is to be installed. libdrm-intel1: Breaks: libdrm-intel1 (!= 2.4.26-1ubuntu1) but 2.4.27+git20111104.961bf9b5-0ubuntu0sarvatt~oneiric is installed. libdrm-intel1: Breaks: libdrm-intel1 (!= 2.4.27+git20111104.961bf9b5-0ubuntu0sarvatt~oneiric) but 2.4.26-1ubuntu1 is to be installed. libva-egl1: Depends: libva1 (> 1.0.15) but 1.0.12-2 is to be installed. libpciaccess0: Breaks: libpciaccess0 (!= 0.12.1-2) but 0.12.902-0ubuntu0ricotz~oneiric0 is installed. libpciaccess0: Breaks: libpciaccess0 (!= 0.12.902-0ubuntu0ricotz~oneiric0) but 0.12.1-2 is to be installed. xserver-xorg-input-mtrack: Depends: xorg-input-abi-13 which is a virtual package. Depends: xserver-xorg-core (>= 2:1.10.99.901) but 2:1.10.4-1ubuntu4 is to be installed. The following actions will resolve these dependencies: Remove the following packages: 1) ia32-libs-multiarch 2) libacl1 3) libasound2 4) libasound2-plugins 5) libasyncns0 6) libatk1.0-0 7) libattr1 8) libaudio2 9) libavahi-client3 10) libavahi-common3 11) libc6 12) libcomerr2 13) libcups2 14) libcupsimage2 15) libcurl3 16) libdatrie1 17) libdb5.1 18) libdbus-1-3 19) libdrm-intel1 20) libdrm-nouveau1a 21) libdrm-radeon1 22) libdrm2 23) libexpat1 24) libffi6 25) libflac8 26) libfontconfig1 27) libfreetype6 28) libgcc1 29) libgcrypt11 30) libgdbm3 31) libgdk-pixbuf2.0-0 32) libgl1-mesa-dri 33) libgl1-mesa-glx 34) libglapi-mesa 35) libglib2.0-0 36) libgnutls26 37) libgpg-error0 38) libgssapi-krb5-2 39) libice6 40) libidn11 41) libjack-jackd2-0 42) libjasper1 43) libjpeg62 44) libjson0 45) libk5crypto3 46) libkeyutils1 47) libkrb5-3 48) libkrb5support0 49) liblcms1 50) libldap-2.4-2 51) libllvm2.9 52) libmng1 53) libnspr4 54) libnspr4-0d 55) libnss3 56) libnss3-1d 57) libogg0 58) libpciaccess0 59) libpcre3 60) libpng12-0 61) libpulse0 62) libqt4-dbus 63) libqt4-declarative 64) libqt4-designer 65) libqt4-network 66) libqt4-opengl 67) libqt4-qt3support 68) libqt4-script 69) libqt4-scripttools 70) libqt4-sql 71) libqt4-svg 72) libqt4-test 73) libqt4-xml 74) libqt4-xmlpatterns 75) libqtcore4 76) libqtgui4 77) librtmp0 78) libsamplerate0 79) libsasl2-2 80) libsasl2-modules 81) libselinux1 82) libsm6 83) libsndfile1 84) libspeexdsp1 85) libsqlite3-0 86) libssl1.0.0 87) libstdc++6 88) libtasn1-3 89) libthai0 90) libtiff4 91) libtxc-dxtn0 92) libudev0 93) libuuid1 94) libva-driver-intel 95) libva-egl1 96) libvorbis0a 97) libvorbisenc2 98) libwrap0 99) libx11-6 100) libx11-xcb1 101) libxau6 102) libxcb-dri2-0 103) libxcb-render0 104) libxcb-shm0 105) libxcb-xfixes0 106) libxcb1 107) libxcomposite1 108) libxcursor1 109) libxdamage1 110) libxdmcp6 111) libxext6 112) libxfixes3 113) libxft2 114) libxi6 115) libxinerama1 116) libxrandr2 117) libxrender1 118) libxss1 119) libxt6 120) libxxf86vm1 121) xserver-xorg-input-mtrack 122) zlib1g Leave the following dependencies unresolved: 123) ia32-libs recommends ia32-libs-multiarch 124) libgl1-mesa-glx recommends libgl1-mesa-dri (>= 7.2) Accept this solution? [Y/n/q/?] q Abandoning all efforts to resolve these dependencies. Abort. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: ppa-purge 0.2.8+bzr56 ProcVersionSignature: Ubuntu 3.1.0-1.1-generic 3.1.0-rc6 Uname: Linux 3.1.0-1-generic x86_64 ApportVersion: 1.23-0ubuntu4 Architecture: amd64 Date: Sun Nov 20 17:02:29 2011 InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64+mac (20110427.1) PackageArchitecture: all ProcEnviron: PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: ppa-purge UpgradeStatus: Upgraded to oneiric on 2011-10-21 (30 days ago)