[Bug 99963] New: Black screen on baytrail tablet when booting without nomodeset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99963

            Bug ID: 99963
           Summary: Black screen on baytrail tablet when booting without
                    nomodeset
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: joseph-thommes at gmx.de
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 129910
  --> https://bugs.freedesktop.org/attachment.cgi?id=129910&action=edit
dmesg without nomodeset

Hello,
I have a Lenovo Miix 2-8 and I'm trying to install arch linux on it.
It is a windows-tablet with a 32-bit UEFI and Intel Baytrail Processor and
Integrated Graphics inside.
I successfully installed arch linux and grub and am able to boot into the
system, but only with the kernel option "nomodeset" set. Otherwise the boot
process is also successful, but at some point the screen turns black.
I still am able to type in everything etc and it works - just the display is
black.
I have been trying to install linux on this tablet for 2 years now and this ->
https://bugs.freedesktop.org/show_bug.cgi?id=97330 gave me new hopes to get
accelerated graphics working.
It still does not work for me, but the symptoms are slightly different after
the update:
the screen does not flicker anymore, but turns black anyway as before.
Attached you find my dmesg without nomodeset.
If you need further information, just ask.

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