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New 7450 - Touchpad / Cursor fails after sleep
Hi there,
I have one of the new 7450s, the ultralight model.
Every time I put the device to sleep (close the lid), the cursor disappears, and I have to restart the device to bring it back. It's not even like the cursor is there in the background. I can see the trackpad has power as when I input movement the keyboard lights activate, its just in Windows nothing happens.
I have tried:
Changing the device drivers to not be power managed by windows
Changed the power mode's settings to not power down pcie during sleep
Completely reinstalled the mouse drivers
Used DELL Command Update to reinstall all drivers
The device is fully up-to-date and is even on a preview build
I am lost with what to do to be honest. I think it needs to be resolved by a driver or bios update.
Kind regards
henryhoover
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May 7th, 2024 07:08
For those curious - I spoke to Dell Tech Support and they pointed me to the drivers page, even though I had reinstalled all drivers via DELL Command Update and also checked for any updates, I noticed that there was a new BIOS released a few days ago.
Installed it, seems to have massively helped.
I guess they dont include brand new BIOS updates on DELL Command Update for a little bit.
Cheers
Mike1788
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May 6th, 2024 02:32
Kind of ambiguous from the post whether you're referring to it not be able to wake it, or it doesn't work after being woken and running. For the first, you need to go into BIOS and turn on 'allow wake from USB devices' or settings similar to that. Different inputs on the Laptop run on different busses and mouse is usually on USB to the OS, pretty sure. I just wake mine by hitting a key then using the mouse. If it's not working after being woken that would be some driver conflict or power setting that I wouldn't know beyond changing 'do not turn off this device to save power' or something in device power settings
henryhoover
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May 6th, 2024 07:26
@Mike1788
Hi Mike.
It is the second point, the laptop wakes from sleep on its own as you open the lid.
Regarding the power settings you mentioned, I have tried it all. Nothing seems to work.
Today, the mouse was moving after sleep but stops after half a second for a good 2 seconds. As if the trackpad is losing connection to windows. Now the mouse has completely stopped functioning.
This is very frustrating and I need DELL to fix this as it makes my laptop almost un-usable. Thankfully I am getting better at using the touchscreen lol!
fle01
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May 14th, 2024 17:19
Hi @henryhoover . I have the same problem too.
Dell changed the laptop by a brand new one but it's still the same behavior.
I've updated BIOS with the latest version from may 3rd Latitude_7X50_1.3.0 but it's still the same once again : after a sleep, the cursor is not visible and so my touchpad unusable.
How dell can let a so huge problem exists on his devices ? we need answer asap !
fle01
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May 14th, 2024 19:28
the only thing that helped me a bit is to disable this option in registry :
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableCusrsorSuppression by changing its value to 0.
The cursor is now still visible event after a sleep time but the touch pad doesn't work well, the cursor moves very slowly and is jumping randomly. after few minutes the behavior seems to be back on his way ... it seems it's related to the way that the device get power after a sleep time.
Dan23945
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May 17th, 2024 11:29
(edited)