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4 Posts

07-07-2021

Russian Federation

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lenovo yoga slim 7 pro keyboard doesnt work on ubuntu 20.04

2021-07-07, 18:04 PM

Please help to resolve

 

 

Moderator comment: Moved to the proper forum. (NateS)

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3 Posts

07-03-2021

Denmark

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Re:lenovo yoga slim 7 pro keyboard doesnt work on ubuntu 20.04

2021-07-07, 20:23 PM

I have the same issue on a Lenovo YOGA Slim 7i PRO 14ITL5 with Ubuntu 20.04.

 

Keyboard works in: UEFI Bios, Windows and Grub.

Keyboard don't work when I get to Ubuntu login screen.

It mostly starts working after hiding the on screen keyboard several times - but sometimes never starts working.

 

I still haven't found a solution.

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1 Posts

07-14-2021

Korea (the Republic of)

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Re:lenovo yoga slim 7 pro keyboard doesnt work on ubuntu 20.04

2021-07-14, 3:00 AM

I have the same issue on a Lenovo YOGA Slim 7i PRO 14ITL5

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3 Posts

07-03-2021

Denmark

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Re:lenovo yoga slim 7 pro keyboard doesnt work on ubuntu 20.04

2021-07-14, 20:18 PM

I tested 2 other version.

 

20.10

Keyboard still not working.

 

21.04 (kernel 5.11.0-22)

Keyboard is working.

But the display is broken and constantly flickering.

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4 Posts

07-07-2021

Russian Federation

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Re:lenovo yoga slim 7 pro keyboard doesnt work on ubuntu 20.04

2021-07-14, 21:42 PM
Good news, about display flickering mayby light sensor on this ubuntu version work wrong, it can fix disable auto brightness
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3 Posts

07-03-2021

Denmark

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Re:lenovo yoga slim 7 pro keyboard doesnt work on ubuntu 20.04

2021-07-14, 22:02 PM

I have auto brightness turned off, so I don't think that's it in 21.04.

It is a really serious flickering going from completely black, to flicker, to freezed scrambled screen, to blinking and back again.

Trying to do a restart by using the mouse, is close to impossible.

 

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4 Posts

07-07-2021

Russian Federation

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Re:lenovo yoga slim 7 pro keyboard doesnt work on ubuntu 20.04

2021-08-01, 10:13 AM
I tried Clear linux distributive and problem the same, flickering screen and keyboard not working(((
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4 Posts

07-07-2021

Russian Federation

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Re:lenovo yoga slim 7 pro keyboard doesnt work on ubuntu 20.04

2021-08-01, 10:20 AM

I found information about lenovo oem linux image in this forum, but I cant find link for download it. Maybe this image will work fine in slim 7 pro.

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2 Posts

10-10-2015

Indonesia

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Re:lenovo yoga slim 7 pro keyboard doesnt work on ubuntu 20.04

2021-08-01, 11:37 AM
I have same experience lack of keyboard response on ubuntu 20.x
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1 Posts

08-22-2021

Russian Federation

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Re:lenovo yoga slim 7 pro keyboard doesnt work on ubuntu 20.04

2021-08-22, 15:00 PM

I also have a Lenovo Yoga Slim 7i pro with the same problem. What helped me was specifying boot parameters for i8042 controller(that's the controller that controls PS/2 laptop keyboard).

  1. Open /etc/default/grub and find GRUB_CMDLINE_LINUX_DEFAULT line.
  2. Change it to GRUB_CMDLINE_LINUX_DEFAULT="i8042.direct i8042.dumbkbd"
  3. Run sudo update-grub
  4. Reboot

i8042.direct - Put keyboard port into non-translated mode i8042.dumbkbd - Pretend that controller can only read data from keyboard and cannot control its state (Don't attempt to blink the leds)

Hope that helps. You might also check this stackoverflow thread Ubuntu 17.04 keyboard not responding after suspend

People tried different i8042 options when suggested one didn't work.

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