Thank you for reporting this bug to Ubuntu. Ubuntu 15.04 (vivid) reached end-of-life on February 4, 2016.
See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in and change the bug status to Confirmed. ** Changed in: xorg (Ubuntu) Status: Incomplete => Won't Fix -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1448958 Title: xorg crash on xdmcp query Status in xorg package in Ubuntu: Won't Fix Bug description: Its not possible to start an XDMCP session on 15.04 X :1 -query localhost reported here, with patch. http://comments.gmane.org/gmane.comp.freedesktop.xorg.devel/44756 On my system it looks like this: X.Org X Server 1.17.1 Release Date: 2015-02-10 X Protocol Version 11, Revision 0 Build Operating System: Linux 3.2.0-61-generic x86_64 Ubuntu Current Operating System: Linux mvogt-ESPRIMO-P900 3.19.0-15-generic #15-Ubuntu SMP Thu Apr 16 23:32:37 UTC 2015 x86_64 Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.19.0-15-generic.efi.signed root= UUID=19b64a42-57df-4059-a35b-85a17f427da2 ro quiet splash vt.handoff=7 Build Date: 19 March 2015 09:26:59AM xorg-server 2:1.17.1-0ubuntu3 (For technical support please see http://www.ubunt u.com/support) Current version of pixman: 0.32.6 Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. (==) Log file: "/var/log/Xorg.1.log", Time: Mon Apr 27 11:53:55 2015 (==) Using system config directory "/usr/share/X11/xorg.conf.d" (II) [KMS] Kernel modesetting enabled. (EE) Fatal server error: (EE) (EE) BUG: triggered 'if (f[f_idx])' (EE) BUG: ../../os/log.c:475 in vpnprintf() (EE) Unsupported printf directive '*' (EE) (EE) Backtrace: (EE) 0: X (xorg_backtrace+0x56) [0x7feccddde556] (EE) 1: X (0x7feccdc2b000+0x1c015f) [0x7feccddeb15f] (EE) 2: X (LogVMessageVerbSigSafe+0x4d) [0x7feccddeb9ed] (EE) 3: X (FatalError+0xea) [0x7feccddeb4ca] (EE) 4: X (0x7feccdc2b000+0x1c2a52) [0x7feccddeda52] (EE) 5: X (0x7feccdc2b000+0x1c2e4d) [0x7feccddede4d] (EE) 6: X (WakeupHandler+0x6b) [0x7feccdc87ddb] (EE) 7: X (WaitForSomething+0x1c3) [0x7feccdddb843] (EE) 8: X (0x7feccdc2b000+0x57ec1) [0x7feccdc82ec1] (EE) 9: X (0x7feccdc2b000+0x5c29b) [0x7feccdc8729b] (EE) 10: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf0) [0x7feccb911a4 0] (EE) 11: X (0x7feccdc2b000+0x4662e) [0x7feccdc7162e] (EE) XDMCP fatal error: Session declined %*.*s ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: xserver-xorg 1:7.7+7ubuntu4 ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3 Uname: Linux 3.19.0-15-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 Date: Mon Apr 27 11:50:42 2015 InstallationDate: Installed on 2015-04-24 (2 days ago) InstallationMedia: Kubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) --- ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None DistUpgraded: Fresh install DistroCodename: vivid DistroRelease: Ubuntu 15.04 DistroVariant: ubuntu ExtraDebuggingInterest: I just need to know a workaround GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Caicos [Radeon HD 6450/7450/8450 / R5 230 OEM] [1002:6779] (prog-if 00 [VGA controller]) Subsystem: PC Partner Limited / Sapphire Technology Radeon HD 6450 1 GB DDR3 [174b:e164] InstallationDate: Installed on 2015-04-24 (9 days ago) InstallationMedia: Kubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) MachineType: FUJITSU ESPRIMO P900 Package: xorg 1:7.7+7ubuntu4 PackageArchitecture: amd64 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-15-generic.efi.signed root=UUID=19b64a42-57df-4059-a35b-85a17f427da2 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3 Tags: vivid ubuntu UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' Uname: Linux 3.19.0-15-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 05/16/2011 dmi.bios.vendor: FUJITSU // American Megatrends Inc. dmi.bios.version: V4.6.4.0 R1.11.0 for D3062-A1x dmi.board.name: D3062-A1 dmi.board.vendor: FUJITSU dmi.board.version: S26361-D3062-A1 dmi.chassis.type: 6 dmi.chassis.vendor: FUJITSU dmi.chassis.version: C$PXW1 dmi.modalias: dmi:bvnFUJITSU//AmericanMegatrendsInc.:bvrV4.6.4.0R1.11.0forD3062-A1x:bd05/16/2011:svnFUJITSU:pnESPRIMOP900:pvr:rvnFUJITSU:rnD3062-A1:rvrS26361-D3062-A1:cvnFUJITSU:ct6:cvrC$PXW1: dmi.product.name: ESPRIMO P900 dmi.sys.vendor: FUJITSU version.compiz: compiz N/A version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.60-2 version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.2-0ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.2-0ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2build1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1 xserver.bootTime: Mon May 4 15:43:50 2015 xserver.configfile: default xserver.devices: input Power Button KEYBOARD, id 6 input Power Button KEYBOARD, id 7 input Logitech USB Optical Mouse MOUSE, id 8 input HID 046a:0011 KEYBOARD, id 9 xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.17.1-0ubuntu3 xserver.video_driver: radeon To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1448958/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
