Londé Ngosso, the next step is to fully reverse commit bisect from kernel 4.5-rc2 to 4.5-rc3 in order to identify the last bad commit, followed immediately by the first good one. Once this good commit has been identified, it may be reviewed for backporting. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection#How_do_I_reverse_bisect_the_upstream_kernel.3F ?
Please note, finding adjacent kernel versions is not fully commit bisecting. After the fix commit (not kernel version) has been identified, then please mark this report Status Confirmed. Thank you for your understanding. Helpful bug reporting tips: https://wiki.ubuntu.com/ReportingBugs ** Package changed: xorg (Ubuntu) => linux (Ubuntu) ** Tags added: kernel-fixed-upstream kernel-fixed-upstream-4.5-rc3 needs-reverse-bisect -- 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/1542934 Title: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun Status in linux package in Ubuntu: Incomplete Bug description: Hello, I get an error on my laptop with ubuntu 14.04 and kernel 4.5 RC2. No HDMI cable plugged. [ 299.696803] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun System information: Dell Inc. Inspiron 5558 with Ubuntu 14.04.3 LTS 64 bits - 8GB RAM - Bios A07 - Intel® Core™ i5-5200U CPU @ 2.20GHz × 4 - Intel® HD Graphics 5500 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: xorg 1:7.7+1ubuntu8.1 Uname: Linux 4.5.0-040500rc2-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.14.1-0ubuntu3.19 Architecture: amd64 CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,staticswitcher,workarounds,scale,expo,ezoom,dbus] CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Sun Feb 7 22:10:31 2016 DistUpgraded: Fresh install DistroCodename: trusty DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:06ae] InstallationDate: Installed on 2015-10-30 (100 days ago) InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805) MachineType: Dell Inc. Inspiron 5558 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.5.0-040500rc2-generic root=UUID=271decaf-2c52-4d45-af0d-da55a999fd55 ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/06/2015 dmi.bios.vendor: Dell Inc. dmi.bios.version: A07 dmi.board.name: 0KG6JV dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA07:bd11/06/2015:svnDellInc.:pnInspiron5558:pvr01:rvnDellInc.:rn0KG6JV:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: Inspiron 5558 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.11.3+14.04.20150313-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.65+git20151026.c745e541-0ubuntu0ricotz~trusty version.libgl1-mesa-dri: libgl1-mesa-dri N/A version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx N/A 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: Sun Feb 7 13:33:05 2016 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 8638 vendor JVC xserver.version: 2:1.17.1-0ubuntu3.1~trusty1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1542934/+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
