Xubuntu install slideshow slides too large to fit window

[Jack Fromm]

Slides don't fit window resulting in horizontal and vertical scrollbars being necessary (see attached screenshot).
Have only seen this on this particular machine. It happens when using the laptop's monitor during the install, but also when using an external monitor at 1920 x 1080 resolution. Using that same external monitor when installing on my desktop, I've never seen the issue. It's also not 100% reproducible, even on my laptop, but I've seen frequently with recent daily builds of both 32- and 64-bit images.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ubiquity-slideshow-ubuntu (not installed)
ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1
Uname: Linux 3.19.0-9-generic i686
ApportVersion: 2.16.2-0ubuntu4
Architecture: i386
CurrentDesktop: XFCE
Date: Sun Mar 22 09:46:20 2015
InstallationDate: Installed on 2015-03-22 (0 days ago)
InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Alpha i386 (20150322)
SourcePackage: ubiquity-slideshow-ubuntu
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1435009

[Jack Fromm (jjfrv8)]

Saw the issue for the first time on my desktop today while installing the Vivid 32-bit B2 image.

System: Host: vivid32 Kernel: 3.19.0-10-generic i686 (32 bit)
           Desktop: Xfce 4.12.0 Distro: Ubuntu 15.04 vivid
Machine: System: Dell product: Inspiron 660s
           Mobo: Dell model: 0XFWHV v: A00 Bios: Dell v: A09 date: 11/22/2012
CPU: Dual core Intel Core i3-3240 (-HT-MCP-) speed/max: 1600/3400 MHz
Graphics: Card: Intel Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller
           Display Server: X.Org 1.17.1 drivers: intel (unloaded: fbdev,vesa)
           Resolution: 1280x1024@60.0hz
           GLX Renderer: Mesa DRI Intel Ivybridge Desktop x86/MMX/SSE2
           GLX Version: 3.0 Mesa 10.5.0
Network: Card-1: Qualcomm Atheros AR9485 Wireless Network Adapter
           driver: ath9k
           Card-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
           driver: r8169
Drives: HDD Total Size: 128.0GB (5.4% used)
Info: Processes: 175 Uptime: 2 min Memory: 217.9/3914.9MB
           Client: Shell (bash) inxi: 2.2.16

[Jack Fromm (jjfrv8)]

Installed Wily daily on new desktop and saw issue again.

System: Host: jack-Meerkat Kernel: 3.19.0-18-generic x86_64 (64 bit) Desktop: Xfce 4.12.2
           Distro: Ubuntu 15.10 wily
Machine: System: System76 product: Meerkat v: meer1
           Mobo: Intel model: NUC5i3RYB v: H41000-502
           Bios: Intel v: RYBDWi35.86A.0137.2015.0107.1700 date: 01/07/2015
CPU: Dual core Intel Core i3-5010U (-HT-MCP-) speed: 2100 MHz (max)
Graphics: Card: Intel Broadwell-U Integrated Graphics
           Display Server: X.Org 1.17.1 drivers: intel (unloaded: fbdev,vesa) Resolution: 1280x1024@60.0hz
           GLX Renderer: Mesa DRI Intel HD Graphics 5500 (Broadwell GT2) GLX Version: 3.0 Mesa 10.5.2
Network: Card-1: Intel Ethernet Connection (3) I218-V driver: e1000e
           Card-2: Intel Wireless 7265 driver: iwlwifi
Drives: HDD Total Size: 128.0GB (5.7% used)
Info: Processes: 183 Uptime: 2 min Memory: 307.9/3838.7MB Client: Shell (bash) inxi: 2.2.16