Public bug reported: After the last automatic upgrade, the system suggested a restart to finalize the installation. Immediately after the reboot, the graph login page worked at 640x480. Using "xdiagnose", checking (disabling) all, I was able to set a resolution 1280x1024, but no more capable to manage the dual-screen as before: in the "Monitor" configuration page, I see only one "Built-in Display" instead the two Acer AL1917 & AL1716 as before. Obviously, the HW connections are not been changed.
My PC is an Acer Veriton X4610G CPU: Intel® Core™ i3-2120 @ 3.30GHz × 4 RAM: 4GiB (128MiB VGA shared) I use an UBUNTU 16.04 LTS 64-bit Thanks for any feedback! Paolo ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-43.63-generic 4.4.21 Uname: Linux 4.4.0-43-generic x86_64 .tmp.unity_support_test.1: ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true Date: Mon Oct 17 15:39:54 2016 DistUpgraded: 2016-09-01 11:14:36,382 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py' DistroCodename: xenial DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0102] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Acer Incorporated [ALI] 2nd Generation Core Processor Family Integrated Graphics Controller [1025:0492] InstallationDate: Installed on 2015-05-15 (521 days ago) InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1) Lsusb: Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 003: ID 058f:6363 Alcor Micro Corp. Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Acer Veriton X4610G ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-43-generic root=/dev/mapper/ubuntu--vg-root ro plymouth:debug drm.debug=0xe nopat vesafb.invalid=1 Renderer: Software SourcePackage: xorg UpgradeStatus: Upgraded to xenial on 2016-09-01 (46 days ago) dmi.bios.date: 05/30/2011 dmi.bios.vendor: Acer dmi.bios.version: P01-B0 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: Veriton X4610G dmi.board.vendor: Acer dmi.chassis.type: 3 dmi.chassis.vendor: Acer dmi.modalias: dmi:bvnAcer:bvrP01-B0:bd05/30/2011:svnAcer:pnVeritonX4610G:pvr:rvnAcer:rnVeritonX4610G:rvr:cvnAcer:ct3:cvr: dmi.product.name: Veriton X4610G dmi.sys.vendor: Acer version.compiz: compiz 1:0.9.12.2+16.04.20160823-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.67-1ubuntu0.16.04.2 version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2.2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2.2 version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2.3 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1.1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Mon Oct 17 15:32:10 2016 xserver.configfile: default xserver.devices: input Power Button KEYBOARD, id 6 input Power Button KEYBOARD, id 7 input AT Translated Set 2 keyboard KEYBOARD, id 8 input ImPS/2 Generic Wheel Mouse MOUSE, id 9 xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.18.3-1ubuntu2.3 ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug compiz-0.9 ubuntu xenial -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1634152 Title: Driver video doesn't work properly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1634152/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp