Ah, thank you very much. It works. I think before I was using wayland thus
why it didnt work.

This command did it.
 xrandr --output eDP-1 --scale 1.25x1.25 --brightness 0.8

Using the scaling option also helped solve the scaling issue I had.
However, it showed another bug. When I use this scaling command (no matter
if fractional or not), then the mouse can still not move outside the 1x1
area. Meaning that if I scale such as

 xrandr --output eDP-1 --scale 2x2

then my mouse has only a quarter of the screen left for usage. Should I
file another bug report?


Best Regards
Marvin Rueppel


On Thu, May 24, 2018 at 6:34 PM, Christopher M. Penalver <
<email address hidden>> wrote:

> marvin:
>
> Regarding xrandr, one may use it in 18.04 as per below. Were you stating
> that when you attempt to use the command that it worked in 16.04, but
> the same command doesn't work in 18.04?
>
> xrandr
> Screen 0: minimum 320 x 200, current 1288 x 703, maximum 16384 x 16384
> VGA-1 connected primary 1288x703+0+0 (normal left inverted right x axis y
> axis) 0mm x 0mm
>    1288x703      59.93*+
>    2560x1600     59.99    59.97
>    1920x1440     60.00
>    1856x1392     60.00
>    1792x1344     60.00
>    2048x1152     60.00
>    1920x1200     59.88    59.95
>    1920x1080     60.00
>    1600x1200     60.00
>    1680x1050     59.95    59.88
>    1400x1050     59.98    59.95
>    1600x900      60.00
>    1280x1024     60.02
>    1440x900      59.89    59.90
>    1280x960      60.00
>    1366x768      59.79    60.00
>    1360x768      60.02
>    1280x800      59.81    59.91
>    1280x768      59.87    59.99
>    1280x720      60.00
>    1024x768      60.00
>    800x600       60.32    56.25
>    848x480       60.00
>    640x480       59.94
>
> ** Description changed:
>
> - 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.
> + The screen brightness cannot be changed.
>
> - 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)
> - ---
> + In 16.04, I could change the brightness via:
> + xrandr --output eDP-1 --brightness 0.7
> +
> + ---
>   ApportVersion: 2.20.9-0ubuntu7
>   Architecture: amd64
>   AudioDevicesInUse:
> -  USER        PID ACCESS COMMAND
> -  /dev/snd/controlC0:  marvin     1768 F.... pulseaudio
> +  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
> +  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
>
> --
> 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:
>   The screen brightness cannot be changed.
>
>   In 16.04, I could change the brightness via:
>   xrandr --output eDP-1 --brightness 0.7
>
>   ---
>   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
>