HP Elitebook 840 G5 lower brightness on some laptops compared to others

[Andre2000]

Hi all

I have attached a photo of 2 x 840 G5s placed next to each other. As you can see, the one on the right has a darker, creamy shade. I have tried uninstalling the driver and getting it from HP website, the brightness is maxed out, tried updating windows and all and yet no luck.

I have come across 20+ laptops which have the same issue. Is this something well known? The difference is really disturbing for the eyes when you need to work in front of a laptop with this issue.

Would this be a panel issue (backlight not working properly) or is it software related and I am missing something out? Any tip/advice would be greatly appreciated.

Regards

Andy

[banhien]

@Andre2000 

I think HP needs to work on BIOS of the Elitebook 840 G5 series. We have screen problem which I posted in IC forum. I will move it out IC sometimes next month (August) because I'm waiting more info from HP.

I tried to update to latest BIOS, latest Intel video ... but still no luck.

Regards.

[Andre2000]

@Banhien

Thank you for your reply. Are you positive this is a BIOS related issue? I need to narrow it down because what I am afraid is that soon users will start seeing the difference themselves, I have no solution and might end up raising hundreds of RMAs

[BramT]

Has a solution been found for this? I noticed that my 840 G5 also has a dim display and when I had a chance to compare it against another 840 G5 it indeed turned out to be a lot dimmer; even though both laptops were at maximum brightness.

[banhien]

@BramT 

After more than one month with new BIOS and new Video driver, won't fix the problem. I called HP yesterday and hope they will come to my place today to work this out (my machine has 3-3-3 onsite warranty with 24hr next business day). I will post back the result later.

Regards.

[Andre2000]

@Banhien

Thank you for getting back on the issue. I hadn't found a fix myself yet, I might have to call HP to come over to my workplace as well, I'm pretty confident these are not isolated cases

[banhien]

@Andre2000 

I contacted HP twice, with my post (sorry it is on IC board, you may not be able to see) a Technician came to my place last week and he decided to replace the screen itself.

Regards.

[Andre2000]

@Banhien, thank you, will attempt to do the same and will come back once I have an update.