** Description changed:

  [Impact]
  Some systems boot failed at a very early stage, only blackscreen shown.
  
  [Fix]
  Some system BIOS set definition in if statement, it would be deferred to be 
loaded.
  Some devices would not work properly and cause a system lockup.
  execute all acpi tables to make system work properly.
  
  [Test]
  Tested on several laptops, the laptop that failed to boot boots well.
  Other laptops still works fine.
  
  [Regression Potential]
  Upstream fix. Low risk.
  Backported changes is one line of debug ouput sentence in nsparse.c:
  s/Start table execution pass/Start load pass/
  
  Verified on several laptops. Fix boot failure and no regression found.
+ 
+ This patch is from 4.17-rc1, so only Bionic/OEM 4.15 kernels need it.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1819921

Title:
  [SRU] [B/OEM] Fix ACPI bug that causes boot failure

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  Incomplete

Bug description:
  [Impact]
  Some systems boot failed at a very early stage, only blackscreen shown.

  [Fix]
  Some system BIOS set definition in if statement, it would be deferred to be 
loaded.
  Some devices would not work properly and cause a system lockup.
  execute all acpi tables to make system work properly.

  [Test]
  Tested on several laptops, the laptop that failed to boot boots well.
  Other laptops still works fine.

  [Regression Potential]
  Upstream fix. Low risk.
  Backported changes is one line of debug ouput sentence in nsparse.c:
  s/Start table execution pass/Start load pass/

  Verified on several laptops. Fix boot failure and no regression found.

  This patch is from 4.17-rc1, so only Bionic/OEM 4.15 kernels need it.

To manage notifications about this bug go to:
https://bugs.launchpad.net/hwe-next/+bug/1819921/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to     : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

Reply via email to