[Bug 96664] New: [CHV] Missing text when many fonts are loaded

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96664

            Bug ID: 96664
           Summary: [CHV] Missing text when many fonts are loaded
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: stephenjust at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 124694
  --> https://bugs.freedesktop.org/attachment.cgi?id=124694&action=edit
Screenshot

On Surface 3, in certain circumstances - primarily when there are a variety of
fonts being displayed at once - certain letters do not render on screen. A
particularly severe instance is shown in the attached screenshot.

This occurs both on kernel 4.7-rc4 and drm-intel-nightly-20160623. using latest
xorg driver.

Other instances of similar behavior have been reported with other graphics
cards in the past and in most of them it seemed to be an issue with handling of
video memory. As such, I suspect something similar is happening here - perhaps
running out of video memory?

I will attach some debug info that I think would be relevant.

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