[Bug 90047] New: Graphics unstable with missing letter on Intel HD Graphics 5500 gen5 if SNA enabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90047

            Bug ID: 90047
           Summary: Graphics unstable with missing letter on Intel HD
                    Graphics 5500 gen5 if SNA enabled
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Driver/intel
          Assignee: chris at chris-wilson.co.uk
          Reporter: launchpad at dabfus.net
        QA Contact: intel-gfx-bugs at lists.freedesktop.org

Created attachment 115108
  --> https://bugs.freedesktop.org/attachment.cgi?id=115108&action=edit
Example of missing letters 1

Dear Intel graphic Team, Chris,

Copied from a Ubuntu bug report at:
https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1432194

As the issue doesn't looks like others, please find attached some screenshots.
A workaround is to enable UXA instead of SNA. Tested with last drivers from
01.org.


Best regards.

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