Anaconda is freezing in the spins LiveCDs but not in the Gnome LiveCDs

[piruthiviraj natarajan]

I am using/testing F20 since alpha TCs and I have a weird issue of Anconda
Freezing up while going through various stages of installation.
When I try the gnome liveCD everything works great and as expected, but
when I try XFCE, MATE, Security spins at some point of the installation
Anaconda uses 90% of the CPU and X starts to slow down and refuses to
respond in while.
On the same live spin CD when I try to start anaconda from any of the TTYs
, It works fine, but anconda starts in default scaled down mode.

I asked the forums but looks like nobody could reproduce this kind of
error. My hardware is a new Ivybridge setup.
$ lspci
00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM
Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor
Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset
Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series
Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset
Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family
High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family
PCI Express Root Port 1 (rev c4)
00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family
PCI Express Root Port 2 (rev c4)
00:1c.3 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family
PCI Express Root Port 4 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset
Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM76 Express Chipset LPC Controller
(rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port
SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus
Controller (rev 04)
01:00.0 Ethernet controller: Qualcomm Atheros AR8161 Gigabit Ethernet (rev
08)
02:00.0 Network controller: Intel Corporation Centrino Wireless-N 2200 (rev
c4)
03:00.0 System peripheral: JMicron Technology Corp. SD/MMC Host Controller
(rev 30)
03:00.2 SD Host controller: JMicron Technology Corp. Standard SD Host
Controller (rev 30)
03:00.3 System peripheral: JMicron Technology Corp. MS Host Controller (rev
30)
03:00.4 System peripheral: JMicron Technology Corp. xD Host Controller (rev
30)


Is there any obvious bug I am missing ?

Side Q:
How to start anaconda in a full screen from the ttys?
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