Public bug reported: I have a very new Lenovo X1 Yoga 2nd edition, with oled display. The exact model is 20JECTO1WW. The BIOS is N1NET27W. I am running a vanilla Ubuntu 16.04
lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 16.04.3 LTS Release: 16.04 Codename: xenial uname -a Linux gjs-yoga 4.11.0-14-generic #20~16.04.1-Ubuntu SMP Wed Aug 9 09:06:22 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux Until recently things worked quite well. But on August 26 I got an update from Ubuntu and things began to decay. In particular, I can no longer display except on the built-in display: For example, xrandr cannot find any outputs, even though this laptop has a (working) HDMI output port. xrandr --verbose xrandr: Failed to get size of gamma for output default Screen 0: minimum 2560 x 1440, current 2560 x 1440, maximum 2560 x 1440 default connected primary 2560x1440+0+0 (0x272) normal (normal) 0mm x 0mm Identifier: 0x271 Timestamp: 33974 Subpixel: unknown Clones: CRTC: 0 CRTCs: 0 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: _GNOME_FLASHBACK_PRESENTATION_OUTPUT: 0 2560x1440 (0x272) 342.835MHz *current h: width 2560 start 0 end 0 total 2560 skew 0 clock 133.92KHz v: height 1440 start 0 end 0 total 1440 clock 93.00Hz Notice there are no (even disconnected) outputs other than default. Another symptom is that system restart always turns off the power rather than rebooting. I looked at the manifest of the update that seems to have caused trouble and the only suspicious entry is a microcode update from Intel. Here is the entry from the apt history log: Start-Date: 2017-08-26 17:54:05 Commandline: aptdaemon role='role-commit-packages' sender=':1.87' Upgrade: intel-microcode:amd64 (3.20151106.1, 3.20170707.1~ubuntu16.04.0), I hope that someone knows what is the problem here. I am stumped. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.11.0-14.20~16.04.1-generic 4.11.12 Uname: Linux 4.11.0-14-generic x86_64 .tmp.unity_support_test.1: ApportVersion: 2.20.1-0ubuntu2.10 Architecture: amd64 BootLog: CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None Date: Sat Sep 9 18:54:56 2017 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation Device [8086:5916] (rev 02) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:224e] InstallationDate: Installed on 2017-07-27 (44 days ago) InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 04f2:b5ce Chicony Electronics Co., Ltd Bus 001 Device 004: ID 056a:5087 Wacom Co., Ltd Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: LENOVO 20JECTO1WW ProcEnviron: LANGUAGE=en_US PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.11.0-14-generic root=/dev/mapper/ubuntu--vg-root ro nomodeset Renderer: Software SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/12/2017 dmi.bios.vendor: LENOVO dmi.bios.version: N1NET27W (1.14 ) dmi.board.asset.tag: Not Available dmi.board.name: 20JECTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0J40697 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 31 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN1NET27W(1.14):bd07/12/2017:svnLENOVO:pn20JECTO1WW:pvrThinkPadX1Yoga2nd:rvnLENOVO:rn20JECTO1WW:rvrSDK0J40697WIN:cvnLENOVO:ct31:cvrNone: dmi.product.name: 20JECTO1WW dmi.product.version: ThinkPad X1 Yoga 2nd dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.12.2+16.04.20160823-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.76-1~ubuntu16.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 17.0.7-0ubuntu0.16.04.1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 17.0.7-0ubuntu0.16.04.1 version.xserver-xorg-core: xserver-xorg-core N/A version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A xserver.bootTime: Sat Sep 9 18:34:59 2017 xserver.configfile: default xserver.logfile: /var/log/Xorg.0.log xserver.outputs: xserver.version: 2:1.19.3-1ubuntu1~16.04.2 ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug ubuntu xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1716184 Title: failure of xrandr to find any outputs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1716184/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs