Linux blackbox 4.19.0-041900-generic #201810221809 SMP Mon Oct 22
22:11:45 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

When running this kernel, the bug changes but is still present. In
arandr, the 2560x1440 resolution is available, however the monitor
interprets the signal as 1280x1440, which makes everything look wonky
and unreadable. Is this considered the same bug, and should I market as
'kernel-bug-exists-upstream'?

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https://bugs.launchpad.net/bugs/1799613

Title:
  In kernel 4.14.59, monitor resolution is detected correctly. In
  kernels after that, they are not detected correctly.

Status in linux package in Ubuntu:
  Incomplete

Bug description:
   dpkg --list | grep linux-image
  ii  linux-image-4.15.0-36-generic                   4.15.0-36.39              
                   amd64        Signed kernel image generic
  ii  linux-image-4.15.0-38-generic                   4.15.0-38.41              
                       amd64        Signed kernel image generic
  ii  linux-image-generic                             4.15.0.38.40              
                       amd64        Generic Linux kernel image
  ii  linux-image-unsigned-4.14.59-041459-generic     
4.14.59-041459.201807280929                      amd64        Linux kernel 
image for version 4.14.59 on 64 bit x86 SMP

  
  Booting from GRUB into 4.14.59 allows my two monitors to run at their native 
resolution, 2560x1440. Any newer kernel does not allow my two monitors to run 
at their native resolution, only allowing up to 1920x1200. 

  uname -a

  Linux blackbox 4.14.59-041459-generic #201807280929 SMP Sat Jul 28
  09:32:10 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

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