ok. Now Im on my 16.10 system again. 1. this is the comand I use for 70% it also works for numbers higher than 1 down to 0
xrandr --output eDP-1 --brightness 0.7 for this current system Linux X1-16 4.13.0-43-generic #48~16.04.1-Ubuntu SMP Thu May 17 12:56:46 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux I have not used it prior to 16.10 but I think it worked. All systems newer than 16.10 so far failed to Support my screen. something like this discussion. https://forums.lenovo.com/t5/Linux-Discussion/X-1-Yoga-OLED-brightness-control-under-linux/td-p/3948282 https://ubuntuforums.org/showthread.php?t=2337478 This looks like a solution to me, but I have not tried it because before ubuntu 18 there was several other issues that made it unrunnable on my machine. https://github.com/udifuchs/icc-brightness 3) thx. what would you change it to then? Or leave it empty? Its my first real bug report and I am happy to help. Best Regards Marvin Rueppel Mobile: +41 (0) 79 339 1121 Email : mruep...@gmail.com On Wed, May 23, 2018 at 6:39 PM, Christopher M. Penalver < christopher.m.penal...@gmail.com> wrote: > marvin: > > 1) When you state "I could only adjust it with the terminal and xrandr", > what terminal command and what do you do with xrandr precisely? > > 2) To clarify, were you able to adjust the screen brightness prior to > Ubuntu 16.10? If so, which specifically and how? > > 3) To advise, when changing the Status you don't have to change the > Target Package as linux is a reasonable culprit. Having an empty Package > when changing Status is for reports where the the root cause package > isn't known, and nobody has any idea what to do with it. > > ** Package changed: ubuntu => linux (Ubuntu) > > ** Changed in: linux (Ubuntu) > Status: Confirmed => Incomplete > > ** Summary changed: > > - OLED X1 yoga lenove, screen ubuntu, brightness issue > + [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness > > ** Tags removed: regression-potential > ** Tags added: kernel-bug-exists-upstream kernel-bug-exists-upstream-v4.17-rc6 > regression-release > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1768208 > > Title: > [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness > > Status in linux package in Ubuntu: > Incomplete > > Bug description: > As with all the proceeding distros from ubuntu 16.10 the brightness of > the OLED screen canot be set. Since xrander is no more present there is > also no hack around this problem anymore. This bug is a killer for using > the system as full brightness drains the battery quickly. > OLED screens have no backlight, thus this might be the issue. > > ProblemType: Bug > DistroRelease: Ubuntu 18.04 > Package: linux-image-4.15.0-20-generic 4.15.0-20.21 > ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 > Uname: Linux 4.15.0-20-generic x86_64 > ApportVersion: 2.20.9-0ubuntu7 > Architecture: amd64 > CurrentDesktop: ubuntu:GNOME > Date: Tue May 1 10:45:56 2018 > SourcePackage: linux-signed > UpgradeStatus: No upgrade log present (probably fresh install) > --- > ApportVersion: 2.20.9-0ubuntu7 > Architecture: amd64 > AudioDevicesInUse: > USER PID ACCESS COMMAND > /dev/snd/controlC0: marvin 1768 F.... pulseaudio > CurrentDesktop: ubuntu:GNOME > DistroRelease: Ubuntu 18.04 > HibernationDevice: RESUME=UUID=e81e811a-12aa-465d-ba3c-77e34b171b69 > MachineType: LENOVO 20FRS2M600 > Package: linux (not installed) > ProcFB: 0 inteldrmfb > ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz root=/dev/nvme0n1p1 > ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 > RelatedPackageVersions: > linux-restricted-modules-4.15.0-20-generic N/A > linux-backports-modules-4.15.0-20-generic N/A > linux-firmware 1.173 > Tags: bionic > Uname: Linux 4.15.0-20-generic x86_64 > UpgradeStatus: No upgrade log present (probably fresh install) > UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo > _MarkForUpload: True > dmi.bios.date: 06/23/2016 > dmi.bios.vendor: LENOVO > dmi.bios.version: N1FET41W (1.15 ) > dmi.board.asset.tag: Not Available > dmi.board.name: 20FRS2M600 > dmi.board.vendor: LENOVO > dmi.board.version: Not Defined > dmi.chassis.asset.tag: No Asset Information > dmi.chassis.type: 10 > dmi.chassis.vendor: LENOVO > dmi.chassis.version: None > dmi.modalias: dmi:bvnLENOVO:bvrN1FET41W(1.15):bd06/23/2016:svnLENOVO: > pn20FRS2M600:pvrThinkPadX1Yoga1st:rvnLENOVO:rn20FRS2M600: > rvrNotDefined:cvnLENOVO:ct10:cvrNone: > dmi.product.family: ThinkPad X1 Yoga 1st > dmi.product.name: 20FRS2M600 > dmi.product.version: ThinkPad X1 Yoga 1st > dmi.sys.vendor: LENOVO > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/ > 1768208/+subscriptions > -- 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/1768208 Title: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness Status in linux package in Ubuntu: Incomplete Bug description: As with all the proceeding distros from ubuntu 16.10 the brightness of the OLED screen canot be set. Since xrander is no more present there is also no hack around this problem anymore. This bug is a killer for using the system as full brightness drains the battery quickly. OLED screens have no backlight, thus this might be the issue. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-20-generic 4.15.0-20.21 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 Uname: Linux 4.15.0-20-generic x86_64 ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Tue May 1 10:45:56 2018 SourcePackage: linux-signed UpgradeStatus: No upgrade log present (probably fresh install) --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: marvin 1768 F.... pulseaudio CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=e81e811a-12aa-465d-ba3c-77e34b171b69 MachineType: LENOVO 20FRS2M600 Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz root=/dev/nvme0n1p1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions: linux-restricted-modules-4.15.0-20-generic N/A linux-backports-modules-4.15.0-20-generic N/A linux-firmware 1.173 Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 06/23/2016 dmi.bios.vendor: LENOVO dmi.bios.version: N1FET41W (1.15 ) dmi.board.asset.tag: Not Available dmi.board.name: 20FRS2M600 dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN1FET41W(1.15):bd06/23/2016:svnLENOVO:pn20FRS2M600:pvrThinkPadX1Yoga1st:rvnLENOVO:rn20FRS2M600:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad X1 Yoga 1st dmi.product.name: 20FRS2M600 dmi.product.version: ThinkPad X1 Yoga 1st dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1768208/+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
