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[Robert Ancell <robert.ancell@xxxxxxxxxxxxx>]

Public bug reported:

Test case:
1. Run XMir on a Nexus 4:
$ Xmir :0 --desktop_file_hint=dialer-app
2. Run zenity
2. DISPLAY=:0 zenity --info

XMir hits an assertion:
Xmir: glamor_fbo.c:189: glamor_pixmap_ensure_fb: Assertion `fbo->tex != 0' failed.

Digging into the code, the failure is occurring in _glamor_create_tex
(glamor/glamor_fbo.c). The glGenTextures is returning a 0 for the
texture and not setting an error code in glGetError.

** Affects: xorg-server (Ubuntu)
     Importance: High
     Assignee: Robert Ancell (robert-ancell)
         Status: Triaged

** Changed in: xorg-server (Ubuntu)
       Status: New => Triaged

** Changed in: xorg-server (Ubuntu)
   Importance: Undecided => Critical

** Changed in: xorg-server (Ubuntu)
   Importance: Critical => High

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https://bugs.launchpad.net/bugs/1493625

Title:
  Fails to generate texture when running zenity on Nexus 4

Status in xorg-server package in Ubuntu:
  Triaged

Bug description:
  Test case:
  1. Run XMir on a Nexus 4:
  $ Xmir :0 --desktop_file_hint=dialer-app
  2. Run zenity
  2. DISPLAY=:0 zenity --info

  XMir hits an assertion:
  Xmir: glamor_fbo.c:189: glamor_pixmap_ensure_fb: Assertion `fbo->tex != 0' failed.

  Digging into the code, the failure is occurring in _glamor_create_tex
  (glamor/glamor_fbo.c). The glGenTextures is returning a 0 for the
  texture and not setting an error code in glGetError.

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