It's been almost a week since I switched to an Apple Thunderbolt 4 Pro
cable and no signal loss so far.
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https://bugs.launchpad.net/bugs/1929209
Title:
[i915] external
My previous comments one year ago were probably premature. And on top of
that I'm now using a different primary desktop (also Intel 12th gen, now
kernel 6.2) that periodically has a similar bug. My next plan is to try
replacing the USB-C cable with an expensive Apple Thunderbolt cable.
**
Same issue with external monitor in Ubuntu 20.04 LTS, Fedora 39 (KDE
plasma) and I observed it with many other distributions (e.g. Lubuntu
23.10). With exactly same setup, Windows 10 Pro on my lenovo T470s with
external monitor does not give any issues, so, not a HW problem. Tried
xset -dpms, sxet
Any fixes for this yet? I have started to experience this in the last
few days for Ubuntu 20.04 LTS. The only change was that the laptop
battery was replaced. However, this problem does not occur on my dual-
boot Windows 10, so this is probably not a hardware issue.
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My issue with Intel 12th gen regularly losing display signal *appears*
to be fixed by using kernel 6.1. Fingers crossed it stays fixed.
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"Fix released" for mutter 43.0 only because a workaround was added,
which you can configure in ~/.config/monitors.xml as
...
8
But it may not help everyone. It didn't solve my issues. And so the bug
is still open for the Linux kernel.
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I feel your pain, having suffered the same issue just a few seconds ago.
Although there's a chance we're seeing the same symptoms with different
root causes so please be sure to open your own bug by running:
ubuntu-bug linux
Start by testing different display cables/connection types.
**
Any other fixes? xrandr isn't working, with Wayland; Running 22.10 on my
machine, and this is problematic with 4k or ultrawide displays
especially
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If it's still unreliable then try 6 instead of 8, but 8 should look
better.
** Also affects: mutter (Ubuntu)
Importance: Undecided
Status: New
** Changed in: mutter (Ubuntu)
Assignee: (unassigned) => Daniel van Vugt (vanvugt)
** Changed in: mutter (Ubuntu)
Importance:
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