[Nouveau] gnome-shell crashes with nouveau and my new 450 GTS

[Audio Phile]

Trying to use nouveau w/ gnome-shell and a new 450 GTS on Arch Linux.  Firstly, 
gnome-shell enters fallback mode upon login.  Secondly, whenever I try 
to open a shell or a program such as firefox, gnome fallback mode 
crashes me back to gdm.  I'm not sure what to post log-wise, but here is a start.  Thanks in advance for any advice!


Xorg.0.log is here: http://pastebin.com/m4Mk6VJy
$ dmesg | grep nouv
[    5.593900] nouveau 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[    5.593905] nouveau 0000:01:00.0: setting latency timer to 64
[    5.595084] [drm] nouveau 0000:01:00.0: Detected an NVc0 generation card (0x0c3200a1)
[    5.595090] fb: conflicting fb hw usage nouveaufb vs EFI VGA - removing generic driver
[    5.599268] [drm] nouveau 0000:01:00.0: Attempting to load BIOS image from PRAMIN
[    5.655781] [drm] nouveau 0000:01:00.0: ... appears to be valid
[    5.655783] [drm] nouveau 0000:01:00.0: BIT BIOS found
[    5.655785] [drm] nouveau 0000:01:00.0: Bios version 70.06.13.00
[    5.655786] [drm] nouveau 0000:01:00.0: Pointer to BIT loadval table invalid
[    5.655791] [drm] nouveau 0000:01:00.0: TMDS table version 2.0
[    5.655793] [drm] nouveau 0000:01:00.0: Found Display Configuration Block version 4.0
[    5.655795] [drm] nouveau 0000:01:00.0: Raw DCB entry 0: 02000300 00000000
[    5.655796] [drm] nouveau 0000:01:00.0: Raw DCB entry 1: 01000302 00020030
[    5.655798] [drm] nouveau 0000:01:00.0: Raw DCB entry 2: 08011382 00020030
[    5.655799] [drm] nouveau 0000:01:00.0: Raw DCB entry 3: 04022310 00020030
[    5.655800] [drm] nouveau 0000:01:00.0: Raw DCB entry 4: 02033362 00020010
[    5.655802] [drm] nouveau 0000:01:00.0: DCB connector table: VHER 0x40 5 16 4
[    5.655804] [drm] nouveau 0000:01:00.0:   0: 0x00001030: type 0x30 idx 0 tag 0x07
[    5.655806] [drm] nouveau 0000:01:00.0:   1: 0x00010131: type 0x31 idx 1 tag 0x51
[    5.655808] [drm] nouveau 0000:01:00.0:   2: 0x00000200: type 0x00 idx 2 tag 0xff
[    5.655809] [drm] nouveau 0000:01:00.0:   3: 0x00002361: type 0x61 idx 3 tag 0x08
[    5.655812] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table 0 at offset 0x6804
[    5.685944] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table 1 at offset 0x6EF8
[    5.698694] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table 2 at offset 0x80EC
[    5.698696] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table 3 at offset 0x80F6
[    5.698746] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table 4 at offset 0x82CB
[    5.698747] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table at offset 0x8330
[    5.718755] [drm] nouveau 0000:01:00.0: 0x8330: Condition still not met after 20ms, skipping following opcodes
[    5.718762] [drm] nouveau 0000:01:00.0: voltage table 0x40 unknown
[    5.737503] [drm] nouveau 0000:01:00.0: 3 available performance level(s)
[    5.737506] [drm] nouveau 0000:01:00.0: 0: memory 135MHz core 50MHz shader 101MHz timing 2
[    5.737508] [drm] nouveau 0000:01:00.0: 1: memory 324MHz core 405MHz shader 810MHz voltage 10mV timing 1
[    5.737511] [drm] nouveau 0000:01:00.0: 3: memory 2000MHz core 930MHz shader 1860MHz voltage 20mV timing 3
[    5.737584] [drm] nouveau 0000:01:00.0: Detected 1024MiB VRAM
[    5.739691] [drm] nouveau 0000:01:00.0: 512 MiB GART (aperture)
[    5.741676] [drm] nouveau 0000:01:00.0: failed to load fuc409c
[    6.007900] [drm] nouveau 0000:01:00.0: allocated 1920x1080 fb: 0x8020000, bo ffff880220d17800
[    6.007939] fbcon: nouveaufb (fb0) is primary device
[    6.053430] fb0: nouveaufb frame buffer device
[    6.053435] [drm] Initialized nouveau 0.0.16 20090420 for 0000:01:00.0 on minor 0

Xorg.0.log is here: http://pastebin.com/m4Mk6VJy