I've noticed through multiple bug reports that recent kernels have
become pedantic about bandwidth requirements and therefore which
resolutions they are willing to offer.
Also 5120x1440 at 60Hz is right near the limit of what the i7-8565U can
do:
https://ark.intel.com/content/www/us/en/ark/produc
** Package changed: xorg (Ubuntu) => linux-hwe-6.8 (Ubuntu)
** Package changed: linux-hwe-6.8 (Ubuntu) => linux (Ubuntu)
** Also affects: mutter (Ubuntu)
Importance: Undecided
Status: New
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