The machine is stuck in recovery mode, according to the kernel command line:
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.17.0-041700rc3-generic root=UUID=63fcbd04 -ec8b-462c-ba66-4f45c229353c ro recovery nomodeset To fix this, you need to reboot and then press Esc as soon as the purple screen appears. Now select the proper kernel that is not recovery mode. ** Changed in: xorg-server (Ubuntu) Status: New => Incomplete -- 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/1801716 Title: Xorg freeze (black screen after ubuntu logo during boot) Status in linux package in Ubuntu: Incomplete Status in xorg-server package in Ubuntu: Incomplete Bug description: I experienced this bug ever since I have upgraded my laptop from 16.04. But it got resolved in my last update after I reported the bug. However, I forgot to go back to Launchpad to mark it as resolved and now the problem comes again after I just updated the system. So, as the title stated, I can't get in the system due to the infinite black screen I am facing. I am only able to report this bug under the recovery mode. Besides, there's something wrong with the lock screen too. I can't get back to the system if I just put the system into "sleep mode". Black screen again! What's worst, the brightness of my display can't be adjusted as well! I feel like being blind at night! Please help!!! Thank you! And I think there might be the compatibility problem between my laptop and the new desktop -- Gnome, which is the default in 18.04. What should do? I really love using Ubuntu, as I really learned a lot in these days I used it as my study os for CS. Any help is appreciated, thanks in advance! ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: xorg 1:7.7+19ubuntu7.1 Uname: Linux 4.17.0-041700rc3-generic x86_64 .tmp.unity_support_test.1: ApportVersion: 2.20.9-0ubuntu7.4 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Mon Nov 5 19:49:36 2018 DistUpgraded: Fresh install DistroCodename: bionic DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GpuHangFrequency: Continuously GpuHangReproducibility: Yes, I can easily reproduce it GpuHangStarted: Today GraphicsCard: Intel Corporation HD Graphics 5300 [8086:161e] (rev 08) (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. HD Graphics 5300 [1043:15fd] InstallationDate: Installed on 2018-04-04 (215 days ago) InstallationMedia: Ubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64 (20180228) MachineType: ASUSTeK COMPUTER INC. T300FA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.17.0-041700rc3-generic root=UUID=63fcbd04-ec8b-462c-ba66-4f45c229353c ro recovery nomodeset Renderer: Software SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/01/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: T300FA.214 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: T300FA dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrT300FA.214:bd09/01/2015:svnASUSTeKCOMPUTERINC.:pnT300FA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnT300FA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.family: T dmi.product.name: T300FA dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. version.compiz: compiz 1:0.9.13.1+18.04.20180302-0ubuntu1 version.libdrm2: libdrm2 2.4.91-2 version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.5-0ubuntu0~18.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.5-0ubuntu0~18.04.1 version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4.2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.5-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2 xserver.bootTime: Tue Nov 6 03:47:33 2018 xserver.configfile: default xserver.errors: open /dev/dri/card0: No such file or directory open /dev/dri/card0: No such file or directory Screen 0 deleted because of no matching config section. AIGLX: reverting to software rendering xserver.logfile: /var/log/Xorg.0.log xserver.outputs: xserver.version: 2:1.19.6-1ubuntu4.2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1801716/+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