Hi All,
Have been following the thinkpad forums for a few years and have greatly appreciated the information so freely shared.
I've just purchased a reconditioned X1 Carbon 2nd generation. Is there any sure way of telling whether or not PWM is active on the display?
The hwinfo.com tool reports display->monitor as Lenovo 40A4/ LP40QH1-SPA2 .
Thanks for any help anyone might be able to provide.
Alec
Take a look at our
ThinkPads.com HOME PAGE
For those who might want to contribute to the blog, start here: Editors Alley Topic
Then contact Bill with a Private Message
ThinkPads.com HOME PAGE
For those who might want to contribute to the blog, start here: Editors Alley Topic
Then contact Bill with a Private Message
X1 Carbon (2nd Generation) PWM question
-
BillMorrow
- *Senior* Admin

- Posts: 7673
- Joined: Tue Apr 13, 2004 9:40 pm
- Location: San Francisco -> Florida -> Georgia
- Contact:
Re: X1 Carbon (2nd Generation) PWM question
hello alec..
welcome to the active part of the forum..
i have both a gen 2 and a gen 3 X1 carbon.. i like the gen 3 for the real mouse buttons and Fn keys..
both are touch and max resolution..
i've not noticed any flicker on either one of these..
i did see this video on youtube relating to an intel utility used to modify the PWM on another thinkpad model..
it might help you.. or not.. https://www.youtube.com/watch?v=ycKzTDnTYTQ
err.. are you really in new york..? your IP shows germany..
welcome to the active part of the forum..
i have both a gen 2 and a gen 3 X1 carbon.. i like the gen 3 for the real mouse buttons and Fn keys..
both are touch and max resolution..
i've not noticed any flicker on either one of these..
i did see this video on youtube relating to an intel utility used to modify the PWM on another thinkpad model..
it might help you.. or not.. https://www.youtube.com/watch?v=ycKzTDnTYTQ
err.. are you really in new york..? your IP shows germany..
Bill Morrow, kept by parrots
& cockatoos
Sysop - forum.thinkpads.com
*
She was not what you would call refined,
She was not what you would call unrefined,
She was the type of person who kept a parrot.
~~~Mark Twain~~~
Sysop - forum.thinkpads.com
*
She was not what you would call refined,
She was not what you would call unrefined,
She was the type of person who kept a parrot.
~~~Mark Twain~~~
-
- Similar Topics
- Replies
- Views
- Last post
-
-
X1 Carbon 4th Gen -- Wonky Keyboard
by Scorpion8 » Thu Oct 23, 2025 9:40 pm » in ThinkPad X1 / X1-Carbon / X1-Extreme and later Series - 9 Replies
- 13884 Views
-
Last post by Scorpion8
Wed Nov 19, 2025 4:42 pm
-
-
-
X1 carbon gen 5 and 6 keyboard and power button assembly interchangeability
by dcfbf » Mon Dec 15, 2025 4:15 pm » in ThinkPad X1 / X1-Carbon / X1-Extreme and later Series - 3 Replies
- 11212 Views
-
Last post by dcfbf
Wed Jan 21, 2026 2:32 pm
-
-
-
T440p CPU upgrade + dGPU question
by brendenbogi » Thu Nov 06, 2025 11:19 am » in ThinkPad T430-T495 / T530-T590 Series - 7 Replies
- 14451 Views
-
Last post by axur-delmeria
Sun Nov 09, 2025 12:07 am
-
-
-
T60/T61 RAM Compatibility Question with DDR2 Modules Above 2GB
by annawonka » Wed Nov 12, 2025 11:43 pm » in ThinkPad T60/T61 Series - 2 Replies
- 7918 Views
-
Last post by Glaurung-quena
Thu Nov 13, 2025 2:37 pm
-
Who is online
Users browsing this forum: No registered users and 51 guests



