#Screen lights update#
You might find additional suggestions that are better suited for your Latitude business computer if you search the Latitude board.Ħ4-bit Win 10 Pro v21H2 build 19044.1586 * Firefox v98.0.2 * Microsoft Defender v.4-0.8 * Malwarebytes Premium v4.5.6.180- * Dell SupportAssist v3.10.4.18 * Dell Update for Windows 10 Universal v4.4. Just note that you posted in the Inspiron board of this forum for home computers. Is that correct, and if so are you on the Enterprise Version 1809 Long-Term Servicing Channel (LTSC) listed at, or are you using the "regular" Semi-Annual channel of Windows 10 Enterprise Version 1809 that reached end of service on 1? Is there any reason why you haven't updated your operating system to Version 21H2 (Build 19044. xxxx) would indicate that you're still using Version 1809. I'm not familiar with version and build numbers for Windows 10 Enterprise, but your build number (17763. 2) that is also recommended on that support page. 0) and then ensure that you have the Intel Chipset Device Software v1.8164 (rel. Windows 7 Apple macOS Linux Windows 10 In Windows 10, there are several ways to adjust the display brightness. Hopefully it may just be a loose LCD flex cable connection on the systemboard.
You would need some tools that are appropriate enough to use to open the tablet so that it can be checked for any obvious damage to the systemboard.
I'm not sure if it would help, but you might want to update to the latest Dell Latitude 7490 System BIOS v1.24.1 (rel. From your description the touchscreen is working but not the LCD screen. Your system information shows you still have Dell Latitude 7490 System BIOS v1.20.0 (rel. 0) recommended on the suppport page for your Latitude 7490 at or have you updated your Intel graphics driver to a newer version? Have you tried the workaround posted on 1 by VMarcoci to press four keys ( Windows key + Ctrl + Shift + B) while your computer is in Sleep mode to restart the graphics driver?Īre you using the Intel UHD Graphics Driver v27.20.100.917 (rel.
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