** Attachment added: "screenshot not showing the issue" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1590650/+attachment/4680166/+files/noisy-colors-1-screenshot.png
-- 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/1590650 Title: Noisy white turquoise shadows in colors and since Xenial Status in linux package in Ubuntu: New Bug description: Hi, since the upgrade to Xenial I've had graphic issues on my NAS/HTPC box. All white is rendered as a noisy grey, and colors have a bunch of bright turquoise pixels. Back then I've reverted to the old 4.2.0-35 kernel I had before and things were fine. The recent update to 4.4.0-22 didn't help, so I decided it is time to debug and fix that since I don't know how much more LTS users might be affected. I lack experience in debugging graphical issues, what are the right next steps? - are there obvious extra debug information sources that might help? - I tried most of the common troubleshooting guides without any effect, let me know if I should tweak any i915 parms or so. - would it be useful to go to a Yakkety kernel, and if this fixing it bisecting from there - if so on what tree - I don't want a full Y upgrade on this box? I made some screenshots, but the issue is not visible there - this might be a hint in itself as it should imply that the error so is "after" the graphics buffer right? I'll attach the screenshots and cam shots of the same so you can see what I mean. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-22-generic 4.4.0-22.40 ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8 Uname: Linux 4.4.0-22-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: paelzer 1918 F.... pulseaudio CurrentDesktop: KDE Date: Thu Jun 9 07:51:07 2016 HibernationDevice: RESUME=UUID=158370b1-2e39-4f92-b9ff-1f2fdcf63c21 InstallationDate: Installed on 2012-04-29 (1501 days ago) InstallationMedia: Ubuntu-Server 12.04 LTS "Precise Pangolin" - Release amd64 (20120424.1) IwConfig: eth0 no wireless extensions. lo no wireless extensions. MachineType: System manufacturer System Product Name ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-22-generic root=UUID=eacb9ac2-7523-41c7-bde4-b78a3cd3cf97 ro bootdegraded=true nosplash apm=on apm=power-off nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw RelatedPackageVersions: linux-restricted-modules-4.4.0-22-generic N/A linux-backports-modules-4.4.0-22-generic N/A linux-firmware 1.157 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to xenial on 2016-05-09 (30 days ago) dmi.bios.date: 12/04/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0907 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: P8H67-I dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0907:bd12/04/2012:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnP8H67-I:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1590650/+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
