[Kernel-packages] [Bug 1768208] Re: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness

** Tags added: cscc -- 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:

Re: [Kernel-packages] [Bug 1768208] Re: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness

Yea. Interesting. Could be connected to why my screen sometimes resets to full brightness when using chromium on my X1-18 4.15.0-46-generic Let me know if I can help in any way. Best Regards Marvin Rueppel Mobile: +41 (0) 79 339 1121 Email : mruep...@gmail.com On Thu, Apr 11, 2019 at 9:56 AM

[Kernel-packages] [Bug 1768208] Re: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness

Got it. Basically we need to use ClutterBrightnessContrastEffect in GSD backlight to support brightness change for OLED systems. -- 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

Re: [Kernel-packages] [Bug 1768208] Re: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness

Hey. Cool. Yea. I have a key board combination now which uses the xrander command, so I have a work around. But the oled screen is not working on linux in general because of the backlight issue. oled has no backlight. What I find strange is that lenovo is not doing anything. For example here.

[Kernel-packages] [Bug 1768208] Re: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness

Sorry for not following this - does this still happen? -- 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

[Kernel-packages] [Bug 1768208] Re: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness

** Tags removed: bios-outdated-1.36 kernel-bug-exists-upstream-v4.17-rc6 ** Tags added: bios-outdated-1.38 kernel-bug-exists-upstream-v4.19-rc4 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

Re: [Kernel-packages] [Bug 1768208] Re: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness

Tried it and no change. The brightness is not affected by the system settings or keys. To verify my version marvin@X1-18:~$ uname -r 4.19.0-041900rc4-generic and xrandr is still working, but only for a short time until the screen updates again to full bringhtness. Interstingly the nightlight

[Kernel-packages] [Bug 1768208] Re: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness

Please give latest mainline kernel (v4.19-rc4) another try, thanks! -- 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

[Kernel-packages] [Bug 1768208] Re: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness

** Attachment removed: "results.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1768208/+attachment/5146961/+files/results.log ** Attachment removed: "dmidecode.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1768208/+attachment/5146962/+files/dmidecode.log ** Changed

Re: [Kernel-packages] [Bug 1768208] Re: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness

Ok, Thx for the feedback. Here is what I found so far. I will try and boot with the different kernel parameter if needed but Ill first have to read up on how to do that correctly. 1) current Kernel marvin@marvin-X1-18:~$ uname -a Linux marvin-X1-18 4.15.0-22-generic #24-Ubuntu SMP Wed May 16

[Kernel-packages] [Bug 1768208] Re: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness

marvin, regarding comment #30: 1) >"assuming you only need the log files." Unfortunately, this isn't the case. 2) Regarding attachments, the article requested separate attachments for each command (not combined into one). This is to help developers know what it is they are looking at, versus

[Kernel-packages] [Bug 1768208] Re: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness

** Description changed: The screen brightness cannot be changed. In 16.04, I could change the brightness via: xrandr --output eDP-1 --brightness 0.7 WORKAROUND: Execute at a terminal: xrandr --output eDP-1 --scale 1.25x1.25 --brightness 0.8 + + WORKAROUND:

Re: [Kernel-packages] [Bug 1768208] Re: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness

https://extensions.gnome.org/extension/1222/oled-dimmer/ Found a smoother work around. Including keys it works out of the box. Best Regards Marvin Rueppel Mobile: +41 (0) 79 339 1121 Email : mruep...@gmail.com On Thu, May 31, 2018 at 4:15 PM, Marvin Rueppel wrote: > Ok. Here the result: > >

Re: [Kernel-packages] [Bug 1768208] Re: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness

Ok. Here the result: assuming you only need the log files. Executed as stated: - ls /sys/class/backlight > backlight - grep -r . /proc/acpi > acpi - sudo acpidump -o acpidump.txt - acpixtract acpidump.txt - Please note this must be done after the prior command,

[Kernel-packages] [Bug 1768208] Re: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness

marvin: 1) Regarding the scaling and mouse issues, these are outside the scope of this report. Hence, feel free to file a separate report about each one by ensuring you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information via a

[Kernel-packages] [Bug 1768208] Re: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness

** Tags removed: regression-release ** Tags added: xenial -- 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

Re: [Kernel-packages] [Bug 1768208] Re: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness

marvin@marvin-X1-18:~$ find /sys/class/backlight /sys/class/backlight /sys/class/backlight/intel_backlight Best Regards Marvin Rueppel Mobile: +41 (0) 79 339 1121 Email : mruep...@gmail.com On Mon, May 28, 2018 at 9:22 AM, Kai-Heng Feng wrote: > What's the output

[Kernel-packages] [Bug 1768208] Re: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness

** Description changed: The screen brightness cannot be changed. In 16.04, I could change the brightness via: xrandr --output eDP-1 --brightness 0.7 + + WORKAROUND: Execute at a terminal: + xrandr --output eDP-1 --scale 1.25x1.25 --brightness 0.8 --- ApportVersion:

[Kernel-packages] [Bug 1768208] Re: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness

What's the output of `find /sys/class/backlight`? -- 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

Re: [Kernel-packages] [Bug 1768208] Re: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness

Ah ok. I could solve the mouse issue with xrandr --output eDP-1 --auto --scale 1.5x1.5 --brightness 0.8 --panning 2560x1440 but then the screen looks terrible Best Regards Marvin Rueppel Mobile: +41 (0) 79 339 1121 Email : mruep...@gmail.com On Mon, May 28, 2018 at 9:03 AM, Marvin Rueppel

Re: [Kernel-packages] [Bug 1768208] Re: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness

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

[Kernel-packages] [Bug 1768208] Re: [Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness

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