This bug is awaiting verification that the linux-lowlatency-
hwe-5.19/5.19.0-1017.18~22.04.1 kernel in -proposed solves the problem.
Please test the kernel and update this bug with the results. If the
problem is solved, change the tag 'verification-needed-jammy' to
'verification-done-jammy'. If the problem still exists, change the tag
'verification-needed-jammy' to 'verification-failed-jammy'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: kernel-spammed-jammy-linux-lowlatency-hwe-5.19

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-oem-5.17 in Ubuntu.
https://bugs.launchpad.net/bugs/1995573

Title:
  Screen cannot turn on after screen off with Matrox G200eW3 [102b:0536]

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  Invalid
Status in linux-oem-5.17 package in Ubuntu:
  Invalid
Status in linux source package in Jammy:
  Won't Fix
Status in linux-oem-5.17 source package in Jammy:
  Fix Released
Status in linux source package in Kinetic:
  Fix Released
Status in linux-oem-5.17 source package in Kinetic:
  Invalid

Bug description:
  [Impact]
  Screen cannot turn on after screen is off

  [Fix]
  Below commit from v6.0-rc1 fixes the issue
  c577b2f43e80 drm/mgag200: Enable atomic gamma lut update

  And applied some other commits to fix the conflicts
  c48a36301634 drm/mgag200: Optimize damage clips
  3064debaf55e drm/mgag200: Add FB_DAMAGE_CLIPS support
  5913ab941d6e drm/mgag200: Acquire I/O lock while reading EDID
  931e3f3a0e99 drm/mgag200: Protect concurrent access to I/O registers with lock
  e13f13e039dc drm: Add DRM-managed mutex_init()

  [Tests]
  Verified on the machine with Matrox G200eW3 [102b:0536] graphics card.

  [Where problems could occur]
  The commits to solve the conflicts are trivial, and not likely to introduce 
regressions. The fix patch change a lot of code and hard to evaluate the risk, 
but check the latest linus/master tree and linux-next/master tree, there is no 
fixed commit for all these cherry-picked commits, so should be safe to include 
them.

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