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M.Koers
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Latitude E5570 - Black display, no resons to keyboard/touchpad - External display/keyboard/mouse do work

I already have the issue that when I put my E5570 to sleep and wake it up again that the keyboard and touchpad do not work. So I have disable the sleep options in the BIOS.

Now I run into different issues.
Yesterday I booted the laptop and it hang on the DELL logo, After a while it stated that my EFI file would not be correct. Force reboot and it booted straight to Windows.

What's more annoying is the fact that the laptop boot, the DELL logo is shown and then the screens go's black, as if it's not connected. SO it looks like it hangs.
BUT an external monitor through HDMI does work and show the windows logon.
The keyboard and touchpad also do not work.
External mouse and keyboard do work.

So pretty much I got a brick when I do not have external display/keyboard and mouse available.

When I reboot the laptop it works fine again.
Am I the only one with this?
Loads of issues with the laptop and wondering if I just have a faulty laptop...

Clean Windows 10 Pro install is done 5 times.
Used the  DELL Command Update to install all drivers and patches.
Issues keep existing...

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22 Replies
M.Koers
1 Nickel

RE: Latitude E5570 - Black display, no resons to keyboard/touchpad - External display/keyboard/mouse do work

I have been spending a lot of hours in troubleshooting this week.

Diagnostics are 100% ok.

Reinstalled Windows 10 about 15 times.
Installing drivers by hands, installing drives trhough the dell update management application.
The issues keeps existing.

To sum the them up:
- Cold boot (laptop is off) to Windows. Keyboard/Touchpad do not work. (Reboot and they work again)
- Resume from sleep. Keyboard/Touchpad do not work. (Reboot and the work again)

After I got the laptop I installed 32Gb of RAM and an 512Gb Samsung 950Pro PCIE M.2 NVME drive.
The drive should be support as Dell states on the product page and in the manual that PCIE with NVME is supported.

"Advanced features, like industry-leading M.2 SATA and M.2 PCIe/NVME solid state drives, provide dat...


In order to get the drive visible and running on PCIe I had to disable the sata controller in the BIOS.
This way the drive is detected in Windows as an PCIe NVME capable drive.

Just to verify if the issues I went back to default with the delivered 256Gb M.2 sata drive and 8Gb RAM.
To install Windows I had to turn the Sata controller back on.

Installed the drivers manually updated WIndows and tested.
The issues do NOT occur.

Retested by installing the drivers using the Dell Update Application.
The issues do NOT occur.

So I figured out that the SATA controller somehow is the guilty part for all the issues.
I mean when enabled to ACHI or RAID the sleep and non working keyboard/touchpad issues do not occur.

When disable the issues DO occur.

So DELL can you please tell me how I can fix this as you state PCIe NVME drives are supported??

M.Koers
1 Nickel

RE: Latitude E5570 - Black display, no resons to keyboard/touchpad - External display/keyboard/mouse do work

And another chapter..

Had some good news as I finally got some stuff fixed.
I had updated the BIOS to version 1.3.8 a while back.
The Dell Update tool did a rollback to 1.3.6 2 weeks ago.
Before and after the rollback the issues existed.

This weekend the Dell Update tool came up with version 1.3.8 again.
Installing by the toll failed so I downloaded and installed it manually.

After the install I reenabed the Sata controller and set it to ACHI mode.
This time the PCIe SSD is visible to the Windows install and in shows up in the Samsung Magician software as an PCIe NVME device with 10Gb/s. So that's fixed.

As I reenabled the Sata controller the issues with the Keyboard/Touchpad when executing a cold boot or resume from sleep seem to be solved.

The last issue that still exists is the Black screen.
When I close the lid, the laptop stays on, for a while as I'm off for a meeting and come back the screen stays black when I open it.
Only solution is attaching an external monitor, logon and it reconfigures to two screens.
This triggers the laptop screen and I can disconnect the external monitor.

So now the question is, how to fix this.

To be continued...

cconnors56
1 Nickel

RE: Latitude E5570 - Black display, no resons to keyboard/touchpad - External display/keyboard/mouse do work

I've posted on a separate thread, but I'm seeing similar sleep/wake issues with the E5570.   This has nothing do with adding additional hardware though-    Just FYI

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M.Koers
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RE: Latitude E5570 - Black display, no resons to keyboard/touchpad - External display/keyboard/mouse do work

The 1.3.6 bios did not show the PCIe device when in ACHI only when sata was disabled.

The black screen stuff work around now if "Click" enter your password and hit enter.

Then use the FN + toggle screen key until the screens turns on so you an continue to work.

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martin.lizner
1 Nickel

RE: Latitude E5570 - Black display, no resons to keyboard/touchpad - External display/keyboard/mouse do work

Solved. I have same setup and same problems. E5570 + custom installed Samsung 950Pro NVMe. Keyboard didn't work on windows login page after hibernate wakeup and sleep wakeups lead to black screen. I'm now on 1.3.8 BIOS and switching SATA to AHCI seems like resolving both problems without impacting drive speed. So thanks for advice!

Now I only need to deal with that high frequency noise coming from motherboard :-(

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martin.lizner
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RE: Latitude E5570 - Black display, no resons to keyboard/touchpad - External display/keyboard/mouse do work

Btw, how did you fix Samsung 950Pro to the case/mobo? There seem to be screw hole missing where it should be ...

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M.Koers
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RE: Latitude E5570 - Black display, no resons to keyboard/touchpad - External display/keyboard/mouse do work

My laptop came with an M.2 drive so the bracket that you need was already there inclusing the screw.

I do not have the 2.5' tray and hdd cable which I would like to have but cost 72,50 euro's so not going to buy that.

A yeah the COIL WHINE.
Had it really bad in the beginning but it gets better overtime.
Maybe stressing the laptop somehow makes it less.
I run a lab on the laptop, 32Gb so about 10 to 16 vm's.

Updating them at the same time will rise the temp pretty good :d

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jdvjdv
1 Nickel

RE: Latitude E5570 - Black display, no resons to keyboard/touchpad - External display/keyboard/mouse do work

Hi Martin,

have you tried new 1.50 bios?

My problem is the CrystalDiskInfo6_8_2 sees only pcie x2 insted of x4 and samsung magician as well.

This reduces read speed to 1,6GB/s.

Could you please confirm the e5570 can see all four lines for 1.3.8 BIOS?

BTW if you use external usb mouse then you can have SATA in any mode, but only in AHCI the keyboard and both "mouses" also work after sleep mode so you can wake the laptop up...

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martin.lizner
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RE: Latitude E5570 - Black display, no resons to keyboard/touchpad - External display/keyboard/mouse do work

Hi, I even have newest BIOS 1.06.03, but still got troubles with NVMe. PCIe link is on full speed 8x4 = 32Gbps, but still my disk wont reach full speed in some parameters. I see better performance when SATA is completely switched off in BIOS but then again keyboard is always shut off when waking up from sleep :-( I use USB mouse, but I dont see how this can interfere. Im really wondering why Dell havent fixed that sofar :-(

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