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3984
August 29th, 2018 06:00
7450 AIO, Windows 10, HDMI projector
Hello Everyone,
I am one of the tech from SUNY Cobleskill and we are experience some issues with the new Optiplex 7450 AIO, in where this machines are not detecting the HDMI projector. The computers are windows 10 Ent Version 1709. at the beginning the computer connect to the projector with no problem but now in order to make it work we need to update the Bios. This was the only solution for it, but now after the new bios update the computers still not projecting to the HDMI projector. We have the same issue is more than 7 classrooms and all of them have the same setup. have any one experience this issue ????
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DELL-Chris M
Community Manager
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August 29th, 2018 12:00
First, we need the correct model. The 7050 did not come as an AIO (All-In-One). I see =
7760 AIO
7460 AIO
7450 AIO
7440 AIO
MartinezAJ
3 Posts
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August 30th, 2018 05:00
I update the entry, we currently have this problem with the Optiplex 7450 AIO, issue still happening in multiple classroom. Bios Version 1.11.2
DELL-Chris M
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August 30th, 2018 11:00
Just to be 100% clear, are you sure that your teachers are plugging the HDMI cable into the #6 HDMI out port, and not the #4 HDMI in port.
Have you reinstalled either the onboard GPU Intel HD driver or the AMD Radeon R7 driver?
MartinezAJ
3 Posts
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August 30th, 2018 11:00
Yes, all the computer are setup by the ITS staff, professor only turn on the computer and the projector for the class. We are aware that this computer have the capacity for HDMI input, but the HDMI cable connected to the projector is in HDMI output.
DELL-Chris M
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August 30th, 2018 15:00
OK. You will need to escalate this to your school district Dell TAM (Technical Account Manager). Be sure to forward them the Forum link so that they can see the trouble shooting.
Mark2019
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January 11th, 2019 12:00
We have been experiencing the same issues with our 7450 AIOs that project to an external display on the HDMI out. This has been going in our environment since August.The 7450 will restart and the HDMI signal will be lost to the secondary monitor/TV. Doing the BIOS update will cause the screen to come back but only for a week or so. We have also found out that just going into the BIOs and exiting causes the external monitor to come back.Then the Secondary Monitor and the HDMI out quit working. Have there been any reported fixes or resolutions for this problem from Dell?
JeffreyCD
1 Message
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July 15th, 2019 07:00
We are also having this problem, it started near the end of the school year. We are using Win 10 EDU 1803 on 7450 AIOs connected to Epson projectors. Any update would be helpful.
gaissbauer
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November 11th, 2019 00:00
I have the same problem with a Dell OptiPlex 7460 All-in-One. Initially this computer was recognized by an OPTOMA beamer on HDMI-out without anny hassles but now, after a few weeks, the beamer does not recognize the HDMI signal of the computer any more. However, the beamer works without problems with the same cable with other computers. On the other hand a BENQ monitor connected by HDMI still works with the Dell OptiPlex 7460 All-in-One. Maybe there is a problem with the signal strength of HDMI-out ... Help would be much appreciated.