apport information ** Tags added: apport-collected
** Description changed: With the latest kernel (5.0.0-11-generic) my MacBook with nouveau shows wrong colors and can't control brightness while running Ubuntu MATE. For example, Ubuntu MATE green appears as teal and orange like in the Firefox logo and window decorations is blue. This includes the plymouth boot logo, but not the desktop wallpaper. Screen brightness can't be controlled at all, neither with the keyboard keys (which have always worked automatically) nor in the Control Center > Power Management because no brightness slider appears at all. This also occurs in a live session from the latest daily build (20190413.3). It does NOT occur in a live session of the latest (20190413.2) Ubuntu Desktop (GNOME). - By editing /etc/default/grub to boot the previous kernel - (5.0.0-8-generic), it works normally again. + By editing /etc/default/grub to boot the previous kernel (5.0.0-8-generic), it works normally again. + --- + ProblemType: Bug + ApportVersion: 2.20.10-0ubuntu27 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC0: ubuntu-mate 1784 F.... pulseaudio + CasperVersion: 1.403 + CurrentDesktop: MATE + DistroRelease: Ubuntu 19.04 + IwConfig: + lo no wireless extensions. + + enp0s10 no wireless extensions. + LiveMediaBuild: Ubuntu-MATE 19.04 "Disco Dingo" - Alpha amd64 (20190413.3) + MachineType: Apple Inc. MacBook5,1 + Package: linux (not installed) + ProcEnviron: + TERM=xterm-256color + PATH=(custom, no user) + XDG_RUNTIME_DIR=<set> + LANG=C.UTF-8 + SHELL=/bin/bash + ProcFB: 0 EFI VGA + ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/username.seed boot=casper quiet splash --- + ProcVersionSignature: Ubuntu 5.0.0-11.12-generic 5.0.6 + RelatedPackageVersions: + linux-restricted-modules-5.0.0-11-generic N/A + linux-backports-modules-5.0.0-11-generic N/A + linux-firmware 1.178 + RfKill: + 0: hci0: Bluetooth + Soft blocked: no + Hard blocked: no + Tags: disco + Uname: Linux 5.0.0-11-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo + _MarkForUpload: True + dmi.bios.date: 04/27/09 + dmi.bios.vendor: Apple Inc. + dmi.bios.version: MB51.88Z.007D.B03.0904271443 + dmi.board.asset.tag: Base Board Asset Tag# + dmi.board.name: Mac-F42D89C8 + dmi.board.vendor: Apple Inc. + dmi.board.version: Proto + dmi.chassis.asset.tag: Asset Tag# + dmi.chassis.type: 10 + dmi.chassis.vendor: Apple Inc. + dmi.chassis.version: Mac-F42D89C8 + dmi.modalias: dmi:bvnAppleInc.:bvrMB51.88Z.007D.B03.0904271443:bd04/27/09:svnAppleInc.:pnMacBook5,1:pvr1.0:rvnAppleInc.:rnMac-F42D89C8:rvrProto:cvnAppleInc.:ct10:cvrMac-F42D89C8: + dmi.product.family: MacBook + dmi.product.name: MacBook5,1 + dmi.product.sku: System SKU# + dmi.product.version: 1.0 + dmi.sys.vendor: Apple Inc. ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/1824815/+attachment/5256121/+files/AlsaInfo.txt -- 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/1824815 Title: With kernel 5.0.0-11-generic and nouveau, Ubuntu MATE has wrong colors and can't control brightness Status in Ubuntu MATE: New Status in linux package in Ubuntu: Incomplete Bug description: With the latest kernel (5.0.0-11-generic) my MacBook with nouveau shows wrong colors and can't control brightness while running Ubuntu MATE. For example, Ubuntu MATE green appears as teal and orange like in the Firefox logo and window decorations is blue. This includes the plymouth boot logo, but not the desktop wallpaper. Screen brightness can't be controlled at all, neither with the keyboard keys (which have always worked automatically) nor in the Control Center > Power Management because no brightness slider appears at all. This also occurs in a live session from the latest daily build (20190413.3). It does NOT occur in a live session of the latest (20190413.2) Ubuntu Desktop (GNOME). By editing /etc/default/grub to boot the previous kernel (5.0.0-8-generic), it works normally again. --- ProblemType: Bug ApportVersion: 2.20.10-0ubuntu27 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ubuntu-mate 1784 F.... pulseaudio CasperVersion: 1.403 CurrentDesktop: MATE DistroRelease: Ubuntu 19.04 IwConfig: lo no wireless extensions. enp0s10 no wireless extensions. LiveMediaBuild: Ubuntu-MATE 19.04 "Disco Dingo" - Alpha amd64 (20190413.3) MachineType: Apple Inc. MacBook5,1 Package: linux (not installed) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=C.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/username.seed boot=casper quiet splash --- ProcVersionSignature: Ubuntu 5.0.0-11.12-generic 5.0.6 RelatedPackageVersions: linux-restricted-modules-5.0.0-11-generic N/A linux-backports-modules-5.0.0-11-generic N/A linux-firmware 1.178 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no Tags: disco Uname: Linux 5.0.0-11-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 04/27/09 dmi.bios.vendor: Apple Inc. dmi.bios.version: MB51.88Z.007D.B03.0904271443 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-F42D89C8 dmi.board.vendor: Apple Inc. dmi.board.version: Proto dmi.chassis.asset.tag: Asset Tag# dmi.chassis.type: 10 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-F42D89C8 dmi.modalias: dmi:bvnAppleInc.:bvrMB51.88Z.007D.B03.0904271443:bd04/27/09:svnAppleInc.:pnMacBook5,1:pvr1.0:rvnAppleInc.:rnMac-F42D89C8:rvrProto:cvnAppleInc.:ct10:cvrMac-F42D89C8: dmi.product.family: MacBook dmi.product.name: MacBook5,1 dmi.product.sku: System SKU# dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. 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