The bug wouldn'taffect VGA+DVI as this would be 2 digital outputs. The HD 6450 only support analog output on the VGA and only Digital on the DVI/HDMI. I wanted to use to monitors and wanted to use one of my existing analog monitors and my new HDMI.
The VGA monitor will not work plugged into a VGA->DVI convertor as the DVI doesn't ouput anything other than a Digital signal. Check Hardware specs on card to see how this is achieved: 2 sepereated display loops for analog and digital. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1132675 Title: Radeon HD 6450 and dual monitor: second monitor not initialized correctly Status in “linux” package in Ubuntu: Confirmed Bug description: Packages affected: linux-image-3.5.0-22, linux-image-3.5.0-23, linux- image-3.5.0-24, linux-image-3.5.0-25 Up to linux-image-3.5.0-21-generic, the second screen connected to a Radeon HD 6450 is initialized correctly. From linux-image-3.5.0-22-generic, the same bug that was present in ubuntu 12.04 reappear: on Xorg startup the screen is recognized of the wrong panel size, o there are artifacts, and after login the unity session crash. --- ApportVersion: 2.6.1-0ubuntu10 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: ilario 2542 F.... pulseaudio /dev/snd/controlC0: ilario 2542 F.... pulseaudio /dev/snd/controlC1: ilario 2542 F.... pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. DistroRelease: Ubuntu 12.10 HibernationDevice: RESUME=UUID=78b49e24-9e25-41f7-9fc0-a10be2f73b77 InstallationDate: Installed on 2011-10-20 (495 days ago) InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) IwConfig: eth0 no wireless extensions. lo no wireless extensions. MachineType: Dell Inc. Vostro 460 MarkForUpload: True Package: linux (not installed) ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=it_IT.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-21-generic root=UUID=4fa2a6c3-043a-404c-a0c3-a891741c4e96 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.5.0-21.32-generic 3.5.7.1 RelatedPackageVersions: linux-restricted-modules-3.5.0-21-generic N/A linux-backports-modules-3.5.0-21-generic N/A linux-firmware 1.95 RfKill: Tags: quantal running-unity Uname: Linux 3.5.0-21-generic x86_64 UpgradeStatus: Upgraded to quantal on 2012-10-19 (129 days ago) UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare dmi.bios.date: 08/16/2012 dmi.bios.vendor: Dell Inc. dmi.bios.version: A08 dmi.board.name: 0Y2MRG dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 3 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA08:bd08/16/2012:svnDellInc.:pnVostro460:pvr:rvnDellInc.:rn0Y2MRG:rvrA01:cvnDellInc.:ct3:cvr: dmi.product.name: Vostro 460 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1132675/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
