Home / lenovo ideapad p400 brightness control not working Lenovo ideapad p400 brightness control not working 28/03/2021 Upgraded my Lenovo ideapad P400 to Windows 10, got dimmed display screen, can not readjust backlight brightness, tried:1. Adaptive display turned off, still stuck with dimmed display.You watching: Lenovo ideapad p400 brightness control not working2. upday Intel HD graphic 4000 driversto latest & additionally install a previous version, still stuck with dimmed screen.HELP PLS! This threview is locked. You have the right to follow the question or vote as valuable, however you cannot reply to this thread. Hi,Thank you for posting your query on jiyuushikan.org Community.This concern can occur if the display vehicle drivers are not compatible through the computer. I indicate you to downfill and install the display screen motorists for the computer system.If we do not have the display screen motorists for the existing operating device, you deserve to download thechauffeurs and also install them in compatibility mode. Please follow the listed below attach to recognize how to install chauffeurs in compatibilitymode:http://jiyuushikan.org/en-us/insider/wiki/insider_wintp-insider_devices/how-to-install-and-update-drivers-in-windows-10/a97bbbd1-9973-4d66-9a5b-291300006293Hope this information helps and let us recognize the standing of the worry we will certainly be glad to aid you further.Thanks. Regards,Yaseer. 2 world uncovered this reply helpful · Was this reply helpful? Yes No Sorry this didn't assist. Great! Thanks for your feedback. How satisfied are you with this reply? Thanks for your feedback, it helps us boost the site. How satisfied are you through this reply? Thanks for your feedearlier.TH thisisrick Replied on August 16, 2015 How did the rest of your upgrade go? Were you able to use Windows 10 after addressing the dimming issue? I also have a P400 yet had actually to roll ago to 8.1 bereason Win10 was super slow-moving on begin up and also extremely choppy (constantly freezing up etc). Did you have actually an excellent experience? Thanks! 2 world found this reply beneficial · Was this reply helpful? Yes No Sorry this didn't help. Great! Thanks for your feedago. How satisfied are you with this reply? Thanks for your feedback, it helps us enhance the site.See more: Steam Community :: Guide :: How To Unlock Lost ", : Bindingofisaac How satisfied are you with this reply? Thanks for your feedback.RS Ricarcarry out Schneider Replied on August 17, 2015 Go to http://support.lenovo.com/us/en/products/laptops-and-netbooks/ideapad-p-series-laptops/ideapad-p400-touch-notebookDownpack the driver fill and install.Same difficulty solved here. 2 civilization uncovered this reply useful · Was this reply helpful? Yes No Sorry this didn't assist. Great! Thanks for your feedearlier. How satisfied are you through this reply? Thanks for your feedago, it helps us enhance the site. How satisfied are you with this reply? Thanks for your feedearlier.PR probiz13 Replied on August 19, 2015 Upgraded my Lenovo ideapad P400 to Windows 10, gained dimmed display, can not change backlight brightness, tried:1. Adaptive display screen turned off, still stuck to dimmed display.2. update Intel HD graphic 4000 driversto latest & likewise install a previous variation, still stuck to dimmed display.HELP PLS!I too had actually the exact same difficulty. There are two things you have the right to carry out, both of which I did before.1. You have the right to switch your screen adapter to jiyuushikan.org Basic Adapter.See more: When Windows 7 Tells Me ' Consider Changing Your Password This will enable you to deal with your brightness trouble. Due to the fact that it"s an easy adapter, you will have actually restricted functions such as projecting a second display via HDMI.2. You can download the older drives from Lenovo"s website. This is where I acquired mine. With this, you shouldn"t be restricted to attributes favor the standard adapter above.http://support.lenovo.com/us/en/downloads/ds031547Updating chauffeurs won"t aid since P400 is not supported from Lenovo for Windows 10. Really upset around that. Though their Thinkpads are great, most most likely will certainly not buy a Lenovo aacquire, especially Ideapad. Anymeans, excellent luck!