I tested also kubuntu-20.04.6 on a USB key and always no HDMI
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https://bugs.launchpad.net/bugs/2045505
Title:
Kernel cannot detect HDMI connection
Status
There are two options :
- Ubuntu, with Linux 6.5.0-14-generic
- Ubuntu, with Linux 6.2.0-39-generic
And no HDMI with both
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Note: we also needed to remove nvidia-firmware-535-535-146.0.2, staying
on nvidia-firmware-535-535-129.0.3
If using nvidia-firmware-535-535-146.0.2 *or* running linux-
image-6.2.0-37, it didn't work.
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If the new linux image got properly installed, it should have added a
new entry in GRUB to boot that kernel (it will probably be placed inside
an "Advanced options" submenu)
I expect it will at least work before starting wayland, and it will
detect and list the monitor. Depending on the drivers
Thanks a lot Ángel
How can I install linux-image-6.2.0-36-generic ? I downloaded it with
synaptic but nothing happened.
Thanks for your help
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux-signed-hwe-6.2 (Ubuntu)
Status: New => Confirmed
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I have been helping troubleshoot the same issue where HDMI stopped working on a
Ubuntu 22.04 that had just been upgraded. You beat me to reporting it.
The issue was finally determined to be caused by a kernel version upgrade.
Booting from the previous kernel (as selected on GRUB) the problem is
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