2 Posts
0
1967
September 1st, 2021 00:00
Precision 7530 video output from USB-C stopped working
Hi!
I did a bunch of driver updates the other day and after that video output for the USB-C port have stopped working, I connect to a docking station, keyboard and mouse works correctly but i get no video output, I only get a message that says "Display connection might be limited". I have tried both at home and at work with different docking stations that have previously worked and it's the same problem, I have tried to update the thunderbolt drivers but it's still the same problem. The drivers I initially updated included graphic card drivers and BIOS drivers, I made the driver updates through SupportAssistant.
Does anyone have any idea of any setting that could cause this? Or is it that the drivers from Dell is causing this issue?
Sincerely Joel
jahl_88
2 Posts
0
September 1st, 2021 22:00
Yeah, I realized it after I made my post.
Thanks for the tip, I will definitely check in here before I do any more major updates. I did however realise my BIOS vas 1.15.3, so it haden't updated to the latest version wich seem to give the most trouble. But downgrading BIOS to 1.14.4 helped my issue, after the downgrade the video output works as it should.
Thanks for your answer!
heikkuri
1 Rookie
•
104 Posts
1
September 1st, 2021 12:00
Hi,
Have you noticed other people complaining about Dell Precision 7530 / 7730 BIOS 1.6.1.
I recommend read this forum before you do any automatic updates to bunch of drivers and BIOS at the same time. I personally update drivers manually one by one. When the setup is good then deploy drivers etc. automatically to other computers with same model.
It's good too have bookkeeping of old and new driver versions.
It's quite impossible to tell what is wrong without any exact version numbers.
What kind dock do you have, Dell TB18DC ?
I have not installed BIOS update 1.6.1. My plan is to avoid it and wait until 1.7.X will come some day.
I hope you can still use HDMI or DisplayPort cable with you external display.
One solution is to switch back to previous BIOS version. It may fail and cause more problems.