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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1768208 Title: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1768208/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
