Don't "long press" the OSD button. Just do a quick press/release. You may have to press/release several times to cycle through all possible options this button may have.
And make sure your other PC is plugged into the HDMI-IN port, #2 on back of this PC, not into the HDMI-OUT port, #3.
See if that helps.
At least for Windows, this PC has an On-Screen Display app that lets you to select the HDMI-IN video source using that button. There's no equivalent app listed for Ubuntu on this model, and I don't know if the Dell Command/Config app for Ubuntu provides this capability. So make sure it's installed and is automatically launched when you boot the PC...
Have you tried looking for Command/Config in Ubuntu by mousing to top left corner of the screen to show the Activities overview and then typing the name of this app? And/or look in the Dash area of Activities to see if its icon is shown there.
I suppose you could install Wine in Ubuntu and see if it will let you install and run Dell's On-Screen Display app for Windows, which is available on this PC model's Drivers page.
There's a recent BIOS Update 1.18.0 for this PC model that "Fixed the issue where the system brightness bar disappears when you install the Intel Graphics driver" and some other issues.
Don't know Ubuntu uses the Intel Graphics driver or if this update will restore the brightness bar on systems running Ubuntu.
Read/follow the instructions carefully for Updating the BIOS from BIOS Boot Menu (independent of operating system) on that page since your PC is running Ubuntu.
While 7450 AIO and 7460 AIO are working fine. The Problem appeared with Ubuntu 22.04. Devices supported by Ubuntu 20.04 (all up to the 7410) did not show this issue prior to upgrade.
RoHe
10 Elder
•
45.2K Posts
1
January 16th, 2023 12:00
Don't "long press" the OSD button. Just do a quick press/release. You may have to press/release several times to cycle through all possible options this button may have.
And make sure your other PC is plugged into the HDMI-IN port, #2 on back of this PC, not into the HDMI-OUT port, #3.
See if that helps.
At least for Windows, this PC has an On-Screen Display app that lets you to select the HDMI-IN video source using that button. There's no equivalent app listed for Ubuntu on this model, and I don't know if the Dell Command/Config app for Ubuntu provides this capability. So make sure it's installed and is automatically launched when you boot the PC...
sriram-4274
4 Posts
0
January 16th, 2023 21:00
I tried everything. I already installed the Dell Command/Config app. Still no response on the screen. Is there any option to open the app on Ubuntu.
RoHe
10 Elder
•
45.2K Posts
0
January 17th, 2023 10:00
Have you tried looking for Command/Config in Ubuntu by mousing to top left corner of the screen to show the Activities overview and then typing the name of this app? And/or look in the Dash area of Activities to see if its icon is shown there.
I suppose you could install Wine in Ubuntu and see if it will let you install and run Dell's On-Screen Display app for Windows, which is available on this PC model's Drivers page.
sriram-4274
4 Posts
0
February 15th, 2023 21:00
Not able to install the APP using Wine. Is there any other solution available?
RoHe
10 Elder
•
45.2K Posts
0
February 16th, 2023 12:00
There's a recent BIOS Update 1.18.0 for this PC model that "Fixed the issue where the system brightness bar disappears when you install the Intel Graphics driver" and some other issues.
Don't know Ubuntu uses the Intel Graphics driver or if this update will restore the brightness bar on systems running Ubuntu.
Read/follow the instructions carefully for Updating the BIOS from BIOS Boot Menu (independent of operating system) on that page since your PC is running Ubuntu.
There's also a recent update for Dell Command | Configure for Ubuntu 22.04 LTS...
sriram-4274
4 Posts
0
February 27th, 2023 22:00
Not even working after the BIOS update. Any other options?
RoHe
10 Elder
•
45.2K Posts
0
February 28th, 2023 14:00
Sorry, I don't have any other ideas, unless there's some way to control the settings in Ubuntu, but I have no experience with Ubuntu...
dcd-arnold
1 Rookie
•
2 Posts
0
July 2nd, 2024 07:01
I am having this problem too on:
- 7470 AIO
- 7480 AIO
- 7490 AIO
- 7410 AIO
While 7450 AIO and 7460 AIO are working fine. The Problem appeared with Ubuntu 22.04. Devices supported by Ubuntu 20.04 (all up to the 7410) did not show this issue prior to upgrade.