Comment 25 for bug 1768208

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
>