[Bug 2037015] [NEW] Screen corruption of slides during install on Raspberry Pi

[Dave Jones]

Public bug reported:

During the initial configuration of the Ubuntu Desktop for Raspberry Pi
(the oem-config process, derived from ubiquity), on the Mantic beta
images, after the various pages of information have been filled out and
the process moves onto configuration, the "slide deck" that is usually
displayed during the process appeared corrupted as if a horizontal
stride were incorrectly set somewhere.

I'm attached a photo of the screen (as, while I could take a screenshot
during the process, it evidently wasn't saved somewhere persistent).

I originally thought this might be a regression of LP: #1924251 as the
corruption in the window looks very similar (incorrect horizontal stride
causing "banding"), but I tested the embedded browser (via the help
system) after completing setup and it worked perfectly so that's
*probably* unrelated.

** Affects: ubiquity (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: raspi-image rls-mm-incoming

** Attachment added: "slide-corruption.jpg"
   https://bugs.launchpad.net/bugs/2037015/+attachment/5703373/+files/slide-corruption.jpg

** Tags added: raspi-image rls-mm-incoming

** Description changed:

  During the initial configuration of the Ubuntu Desktop for Raspberry Pi
- (the oem-config process, derived from ubiquity), after the various pages
- of information have been filled out and the process moves onto
- configuration, the "slide deck" that is usually displayed during the
- process appeared corrupted as if a horizontal stride were incorrectly
- set somewhere.
+ (the oem-config process, derived from ubiquity), on the Mantic beta
+ images, after the various pages of information have been filled out and
+ the process moves onto configuration, the "slide deck" that is usually
+ displayed during the process appeared corrupted as if a horizontal
+ stride were incorrectly set somewhere.
  
  I'm attached a photo of the screen (as, while I could take a screenshot
  during the process, it evidently wasn't saved somewhere persistent).
  
  I originally thought this might be a regression of LP: #1924251 as the
  corruption in the window looks very similar (incorrect horizontal stride
  causing "banding"), but I tested the embedded browser (via the help
  system) after completing setup and it worked perfectly so that's
  *probably* unrelated.

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https://bugs.launchpad.net/bugs/2037015

Title:
  Screen corruption of slides during install on Raspberry Pi

Status in ubiquity package in Ubuntu:
  New

Bug description:
  During the initial configuration of the Ubuntu Desktop for Raspberry
  Pi (the oem-config process, derived from ubiquity), on the Mantic beta
  images, after the various pages of information have been filled out
  and the process moves onto configuration, the "slide deck" that is
  usually displayed during the process appeared corrupted as if a
  horizontal stride were incorrectly set somewhere.

  I'm attached a photo of the screen (as, while I could take a
  screenshot during the process, it evidently wasn't saved somewhere
  persistent).

  I originally thought this might be a regression of LP: #1924251 as the
  corruption in the window looks very similar (incorrect horizontal
  stride causing "banding"), but I tested the embedded browser (via the
  help system) after completing setup and it worked perfectly so that's
  *probably* unrelated.

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