Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.6 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-rc6-wily/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => 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/1573774 Title: No screen after GRUB Status in linux package in Ubuntu: Incomplete Status in plymouth package in Ubuntu: New Bug description: I'm not sure, if this is the appropriate section for this bug report. I did an update (15.10 -> 16.04). After GRUB selects Ubuntu in standard configuration (Linux 4.4.0-21-generic #37-Ubuntu SMP Mon Apr 18 18:34:49 UTC 2016 i686 i686 i686 GNU/Linux), the screen turns immediately black and within seconds the screen signals "No cable attached". If I select the recovery mode in GRUB, the system boots fine in text- mode. From there I'm able to start X in 1280x1014 configuration (default: 1920x1080). I use the internal GPU of my Intel CPU with HDMI (no additional GPU available in my PC). CPUINFO: processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 37 model name : Intel(R) Core(TM) i3 CPU 530 @ 2.93GHz stepping : 2 microcode : 0x9 cpu MHz : 1467.000 cache size : 4096 KB physical id : 0 siblings : 4 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fdiv_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx rdtscp lm constant_tsc arch_perfmon pebs bts xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt lahf_lm tpr_shadow vnmi flexpriority ept vpid dtherm arat bugs : bogomips : 5862.61 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 37 model name : Intel(R) Core(TM) i3 CPU 530 @ 2.93GHz stepping : 2 microcode : 0x9 cpu MHz : 1200.000 cache size : 4096 KB physical id : 0 siblings : 4 core id : 2 cpu cores : 2 apicid : 4 initial apicid : 4 fdiv_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx rdtscp lm constant_tsc arch_perfmon pebs bts xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt lahf_lm tpr_shadow vnmi flexpriority ept vpid dtherm arat bugs : bogomips : 5862.61 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 2 vendor_id : GenuineIntel cpu family : 6 model : 37 model name : Intel(R) Core(TM) i3 CPU 530 @ 2.93GHz stepping : 2 microcode : 0x9 cpu MHz : 1200.000 cache size : 4096 KB physical id : 0 siblings : 4 core id : 0 cpu cores : 2 apicid : 1 initial apicid : 1 fdiv_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx rdtscp lm constant_tsc arch_perfmon pebs bts xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt lahf_lm tpr_shadow vnmi flexpriority ept vpid dtherm arat bugs : bogomips : 5862.61 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 3 vendor_id : GenuineIntel cpu family : 6 model : 37 model name : Intel(R) Core(TM) i3 CPU 530 @ 2.93GHz stepping : 2 microcode : 0x9 cpu MHz : 1200.000 cache size : 4096 KB physical id : 0 siblings : 4 core id : 2 cpu cores : 2 apicid : 5 initial apicid : 5 fdiv_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx rdtscp lm constant_tsc arch_perfmon pebs bts xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt lahf_lm tpr_shadow vnmi flexpriority ept vpid dtherm arat bugs : bogomips : 5862.61 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-21-generic 4.4.0-21.37 ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6 Uname: Linux 4.4.0-21-generic i686 ApportVersion: 2.20.1-0ubuntu2 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: hannes 2079 F.... pulseaudio CurrentDesktop: GNOME Date: Fri Apr 22 21:54:48 2016 HibernationDevice: RESUME=UUID=b08b9335-09cf-4511-99a7-fbb172616893 InstallationDate: Installed on 2010-04-26 (2188 days ago) InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Release Candidate i386 (20100419.1) IwConfig: lo no wireless extensions. eth1 no wireless extensions. MachineType: Shuttle Inc. SH55J ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic root=UUID=e7d513e0-77be-46b0-ba63-04ab3dcc4f77 ro recovery nomodeset RelatedPackageVersions: linux-restricted-modules-4.4.0-21-generic N/A linux-backports-modules-4.4.0-21-generic N/A linux-firmware 1.157 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/27/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 080015 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: SH55J dmi.board.vendor: Shuttle Inc. dmi.board.version: V10 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr080015:bd07/27/2010:svnShuttleInc.:pnSH55J:pvrV10:rvnShuttleInc.:rnSH55J:rvrV10:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: SH55J dmi.product.version: V10 dmi.sys.vendor: Shuttle Inc. --- ApportVersion: 2.20.1-0ubuntu2 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: hannes 1851 F.... pulseaudio BootLog: CurrentDesktop: GNOME DefaultPlymouth: /usr/share/plymouth/themes/ubuntu-logo/ubuntu-logo.plymouth DistroRelease: Ubuntu 16.04 HibernationDevice: RESUME=UUID=b08b9335-09cf-4511-99a7-fbb172616893 InstallationDate: Installed on 2010-04-26 (2191 days ago) InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Release Candidate i386 (20100419.1) IwConfig: lo no wireless extensions. eth1 no wireless extensions. MachineType: Shuttle Inc. SH55J Package: plymouth 0.9.2-3ubuntu13 PackageArchitecture: i386 ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic root=UUID=e7d513e0-77be-46b0-ba63-04ab3dcc4f77 ro quiet splash vt.handoff=7 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic root=UUID=e7d513e0-77be-46b0-ba63-04ab3dcc4f77 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6 RelatedPackageVersions: linux-restricted-modules-4.4.0-21-generic N/A linux-backports-modules-4.4.0-21-generic N/A linux-firmware 1.157 RfKill: Tags: xenial xenial TextPlymouth: /usr/share/plymouth/themes/ubuntu-text/ubuntu-text.plymouth Uname: Linux 4.4.0-21-generic i686 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm admin cdrom dialout lp lpadmin plugdev sambashare _MarkForUpload: True dmi.bios.date: 07/27/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 080015 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: SH55J dmi.board.vendor: Shuttle Inc. dmi.board.version: V10 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr080015:bd07/27/2010:svnShuttleInc.:pnSH55J:pvrV10:rvnShuttleInc.:rnSH55J:rvrV10:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: SH55J dmi.product.version: V10 dmi.sys.vendor: Shuttle Inc. 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