Comment 3 for bug 2033647
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| Daniel van Vugt (vanvugt) wrote Re: External monitor lowered to 30Hz when resuming from suspend | #3 |
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Next time the problems happens and the LG is only running at 30Hz, please run:
sudo apt install drm-info
drm_info > drminfo.txt
and attach the resulting text file here.
This will tell us if the 30Hz limit is coming from the kernel and therefore it's either a kernel bug or a hardware problem in re-detecting the monitor.