[Bug 1854621] Re: ubuntu 20.04 daily boots with no background, selecting other background has warped picture

[Chris Guiver]

Ubuntu groovy daily 2020-10-14 (QA-test live) on 
- dell [optiplex] 755 (c2d-e6850, 5gb, amd/ati radeon rv516/x1300/x1550)
 
glitches are evident on wallpaper, but not always when it's changed, switch between two photos & 3 of 4 selects will have it glitched, 1 will not, glitches will also be different each time

example of glitch is https://photos.app.goo.gl/yZoN34kFBM4UaLh7A

I only saw glitches evident on wallpaper itself (background of desktop),
NOT on any window opened, so effect is ~minor.

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Title:
  ubuntu 20.04 daily boots with no background, selecting other
  background has warped picture

Status in ubuntu-meta package in Ubuntu:
  New

Bug description:
  Ubuntu 20.04 daily - verified (check disc for defects) prior to boot.
  dell [optiplex] 755 (c2d-e6850, 5gb, amd/ati radeon rv516/x1300/x1550)

  On booting, the 20.04 daily has no background when desktop is loaded?
  (ie. top panel is there, dock on left side on black screen)

  When changing background (to any already installed), they are warped
  when selected and made the bacground as if corrupted (but small image
  where selection is made looks valid).


  This issue may relate to video card  [radeon]

  ubuntu at ubuntu:~$ sudo lshw -C video
    *-display:0               
         description: VGA compatible controller
         product: RV516 [Radeon X1300/X1550 Series]
         vendor: Advanced Micro Devices, Inc. [AMD/ATI]
         physical id: 0
         bus info: pci at 0000:01:00.0
         version: 00
         width: 64 bits
         clock: 33MHz
         capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
         configuration: driver=radeon latency=0
         resources: irq:16 memory:d0000000-dfffffff memory:fe9e0000-fe9effff ioport:dc00(size=256) memory:c0000-dffff
    *-display:1 UNCLAIMED
         description: Display controller
         product: RV516 [Radeon X1300/X1550 Series] (Secondary)
         vendor: Advanced Micro Devices, Inc. [AMD/ATI]
         physical id: 0.1
         bus info: pci at 0000:01:00.1
         version: 00
         width: 64 bits
         clock: 33MHz
         capabilities: pm pciexpress bus_master cap_list
         configuration: latency=0
         resources: memory:fe9f0000-fe9fffff

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubuntu-desktop 1.440
  ProcVersionSignature: Ubuntu 5.3.0-18.19-generic 5.3.1
  Uname: Linux 5.3.0-18-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu9
  Architecture: amd64
  CasperVersion: 1.432
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Dec  1 11:58:33 2019
  LiveMediaBuild: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20191128)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-meta
  UpgradeStatus: No upgrade log present (probably fresh install)

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