** Description changed:

  [Impact]
  The following error is reported on boot:
  
  [    6.290553] pci 0004:21:00.0: BAR 0: failed to claim resource for
  efifb!
  
  This results in the efifb not being activated at boot. On this platform,
  the same device will be  initialized by the astdrmfb driver later in
  boot, so this isn't fatal, so the real SRU justification here is getting
  rid of the error message. It is possible that there are platforms where
  the efifb is behind a PCI bridge, and there is no accelerated
  alternative that will load later. This (theoretical) issue is most
  likely to impact d-i installs, where only a subset of fb drivers are
  included.
  
  [Test Case]
  dmesg | grep "failed to claim resource for efifb"
  
  [Regression Risk]
- The fix for this has been upstream since v4.14 with no known regressions. The 
driver is only used on EFI systems, which limits the risk to a subset of 
x86/ARM platforms. 
+ The fix for this has been upstream since v4.14 with no known regressions. The 
driver is only used on EFI systems, which limits the risk to a subset of 
x86/ARM platforms. Regression tested on a Dell PowerEdge T610 (x86/UEFI).
  
  I have a test fix in ppa:dannf/efifb for regression testing.

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https://bugs.launchpad.net/bugs/1758375

Title:
  efifb broken on ThunderX-based Gigabyte nodes

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