[Bug 108702] New: Screen flickering in Ubuntu 18.04 on a 4k laptop screen.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108702

            Bug ID: 108702
           Summary: Screen flickering in Ubuntu 18.04 on a 4k laptop
                    screen.
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/intel
          Assignee: chris at chris-wilson.co.uk
          Reporter: midskavid at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org

I have a lenovo ideapad 720s (4k screeen). I installed ubuntu on dual boot and
with ubuntu there is a weird screen flickering which comes right after grub
menu and persists. I have never faced this on Windows and therefore driver
issues can be ruled out.

I have tried different os : fedora, mint, ubuntu and the issue persists with
all. here is a video for the same : 

https://www.youtube.com/watch?v=Fz7JkVIMPlk

there is a similar bug on
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1785912 wherein it was
asked to raise it here.

Kindly help me!

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