It appears this issue is also being tracked upstream [1]. The issue was fixed by adding firmware code that powers off the HDMI port, which in turn causes most monitors to go into suspend mode and turning off [2]. The fkms driver was modified to make use of that firmware feature [3]. Since I can't reproduce the issue, I can't verify this myself, but my assumption would be that the issue does not present itself when the fkms overlay is being used.
With regards to the full kms driver, I don't see how this could be fixed, considering that using a firmware feature is required. So as far as I can see, if using the fkms driver is not an option, there is nothing we could do to solve this issue. [1]: https://github.com/raspberrypi/linux/issues/3050 [2]: https://github.com/raspberrypi/firmware/commit/00ea13eff012e6ca1488dc84e73bfea7fd6a0612 [3]: https://github.com/raspberrypi/linux/pull/3289 ** Bug watch added: github.com/raspberrypi/linux/issues #3050 https://github.com/raspberrypi/linux/issues/3050 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1998716 Title: [raspi] Ubuntu 22.10 does not turn off monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi/+bug/1998716/+subscriptions -- desktop-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
