This is how it works in Mandriva 2010 x86.
(II) LoadModule: "nouveau"
(II) Loading /usr/lib/xorg/modules/drivers/nouveau_drv.so
(II) Module nouveau: vendor="X.Org Foundation"
compiled for 1.7.5, module version = 0.0.15
Module class: X.Org Video Driver
ABI class: X.Org Video Driver, version 6.0
(II) v4l driver for Video4Linux
(II) NOUVEAU driver
(II) NOUVEAU driver for NVIDIA chipset families :
RIVA TNT (NV04)
RIVA TNT2 (NV05)
GeForce 256 (NV10)
GeForce 2 (NV11, NV15)
GeForce 4MX (NV17, NV18)
GeForce 3 (NV20)
GeForce 4Ti (NV25, NV28)
GeForce FX (NV3x)
GeForce 6 (NV4x)
GeForce 7 (G7x)
GeForce 8 (G8x)
(II) Primary Device is: PCI 00@00:05:0
(WW) Falling back to old probe method for v4l
drmOpenDevice: node name is /dev/dri/card0
drmOpenByBusid: Searching for BusID pci:0000:00:05.0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 8, (OK)
drmOpenByBusid: drmOpenMinor returns 8
drmOpenByBusid: drmGetBusid reports pci:0000:00:05.0
(II) [drm] nouveau interface version: 0.0.16
(II) Loading sub module "dri"
(II) LoadModule: "dri"
(II) Reloading /usr/lib/xorg/modules/extensions/libdri.so
(II) NOUVEAU(0): Loaded DRI module
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 9, (OK)
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 9, (OK)
drmOpenByBusid: Searching for BusID pci:0000:00:05.0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 9, (OK)
drmOpenByBusid: drmOpenMinor returns 9
drmOpenByBusid: drmGetBusid reports pci:0000:00:05.0
(II) [drm] DRM interface version 1.3
(II) [drm] DRM open master succeeded.
(--) NOUVEAU(0): Chipset: "NVIDIA NV4e"
(II) NOUVEAU(0): Creating default Display subsection in Screen section
"screen1" for depth/fbbpp 24/32
(==) NOUVEAU(0): Depth 24, (--) framebuffer bpp 32
(==) NOUVEAU(0): RGB weight 888
(==) NOUVEAU(0): Default visual is TrueColor
(==) NOUVEAU(0): Using HW cursor
(II) NOUVEAU(0): Output VGA-1 using monitor section monitor1
(II) NOUVEAU(0): EDID vendor "PHL", prod id 49202
(II) NOUVEAU(0): Using hsync ranges from config file
(II) NOUVEAU(0): Using vrefresh ranges from config file
(II) NOUVEAU(0): Printing DDC gathered Modelines:
(II) NOUVEAU(0): Modeline "1366x768"x0.0 85.50 1366 1436 1579 1792 768 771 774 798 +hsync +vsync (47.7 kHz)
(II) NOUVEAU(0): Modeline "800x600"x0.0 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz)
(II) NOUVEAU(0): Modeline "800x600"x0.0 36.00 800 824 896 1024 600 601 603 625 +hsync +vsync (35.2 kHz)
(II) NOUVEAU(0): Modeline "640x480"x0.0 31.50 640 656 720 840 480 481 484 500 -hsync -vsync (37.5 kHz)
(II) NOUVEAU(0): Modeline "640x480"x0.0 31.50 640 664 704 832 480 489 492 520 -hsync -vsync (37.9 kHz)
(II) NOUVEAU(0): Modeline "640x480"x0.0 30.24 640 704 768 864 480 483 486 525 -hsync -vsync (35.0 kHz)
(II) NOUVEAU(0): Modeline "640x480"x0.0 25.18 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz)
(II) NOUVEAU(0): Modeline "720x400"x0.0 28.32 720 738 846 900 400 412 414 449 -hsync +vsync (31.5 kHz)
(II) NOUVEAU(0): Modeline "1280x1024"x0.0 135.00 1280 1296 1440 1688 1024 1025 1028 1066 +hsync +vsync (80.0 kHz)
(II) NOUVEAU(0): Modeline "1024x768"x0.0 78.75 1024 1040 1136 1312 768 769 772 800 +hsync +vsync (60.0 kHz)
(II) NOUVEAU(0): Modeline "1024x768"x0.0 75.00 1024 1048 1184 1328 768 771 777 806 -hsync -vsync (56.5 kHz)
(II) NOUVEAU(0): Modeline "1024x768"x0.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz)
(II) NOUVEAU(0): Modeline "832x624"x0.0 57.28 832 864 928 1152 624 625 628 667 -hsync -vsync (49.7 kHz)
(II) NOUVEAU(0): Modeline "800x600"x0.0 49.50 800 816 896 1056 600 601 604 625 +hsync +vsync (46.9 kHz)
(II) NOUVEAU(0): Modeline "800x600"x0.0 50.00 800 856 976 1040 600 637 643 666 +hsync +vsync (48.1 kHz)
(II) NOUVEAU(0): Modeline "1152x864"x0.0 108.00 1152 1216 1344 1600 864 865 868 900 +hsync +vsync (67.5 kHz)
(II) NOUVEAU(0): Modeline "1280x720"x75.0 95.65 1280 1352 1488 1696 720 721 724 752 -hsync +vsync (56.4 kHz)
(II) NOUVEAU(0): Output VGA-1 connected
(II) NOUVEAU(0): Using exact sizes for initial modes
(II) NOUVEAU(0): Output VGA-1 using initial mode 1366x768
(II) NOUVEAU(0): Using default gamma of (1.0, 1.0, 1.0) unless otherwise stated.
(--) NOUVEAU(0): Virtual size is 1366x768 (pitch 1408)
(**) NOUVEAU(0): Driver mode "1366x768": 85.5 MHz (scaled from 0.0 MHz), 47.7 kHz, 59.8 Hz
(II) NOUVEAU(0): Modeline "1366x768"x59.8 85.50 1366 1436 1579 1792 768 771 774 798 +hsync +vsync (47.7 kHz)
(**) NOUVEAU(0): Driver mode "1280x1024": 135.0 MHz (scaled from 0.0 MHz), 80.0 kHz, 75.0 Hz
(II) NOUVEAU(0): Modeline "1280x1024"x75.0 135.00 1280 1296 1440 1688 1024 1025 1028 1066 +hsync +vsync (80.0 kHz)
(**) NOUVEAU(0): Mode "1366x768": 85.5 MHz (scaled from 0.0 MHz), 47.7 kHz, 59.8 Hz
(II) NOUVEAU(0): Modeline "1366x768"x59.8 85.50 1366 1436 1579 1792 768 771 774 798 +hsync +vsync (47.7 kHz)
(**) NOUVEAU(0): Driver mode "1152x864": 108.0 MHz (scaled from 0.0 MHz), 67.5 kHz, 75.0 Hz
(II) NOUVEAU(0): Modeline "1152x864"x75.0 108.00 1152 1216 1344 1600 864 865 868 900 +hsync +vsync (67.5 kHz)
(**) NOUVEAU(0): Mode "1280x720": 95.7 MHz (scaled from 0.0 MHz), 56.4 kHz, 75.0 Hz
(II) NOUVEAU(0): Modeline "1280x720"x75.0 95.68 1280 1352 1488 1696 720 721 724 752 -hsync +vsync (56.4 kHz)
(**) NOUVEAU(0): Driver mode "1024x768": 78.8 MHz (scaled from 0.0 MHz), 60.1 kHz, 75.1 Hz
(II) NOUVEAU(0): Modeline "1024x768"x75.1 78.80 1024 1040 1136 1312 768 769 772 800 +hsync +vsync (60.1 kHz)
(**) NOUVEAU(0): Driver mode "1024x768": 75.0 MHz (scaled from 0.0 MHz), 56.5 kHz, 70.1 Hz
(II) NOUVEAU(0): Modeline "1024x768"x70.1 75.00 1024 1048 1184 1328 768 771 777 806 -hsync -vsync (56.5 kHz)
(**) NOUVEAU(0): Driver mode "1024x768": 65.0 MHz (scaled from 0.0 MHz), 48.4 kHz, 60.0 Hz
(II) NOUVEAU(0): Modeline "1024x768"x60.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz)
(**) NOUVEAU(0): Driver mode "832x624": 57.3 MHz (scaled from 0.0 MHz), 49.7 kHz, 74.6 Hz
(II) NOUVEAU(0): Modeline "832x624"x74.6 57.28 832 864 928 1152 624 625 628 667 -hsync -vsync (49.7 kHz)
(**) NOUVEAU(0): Driver mode "800x600": 50.0 MHz (scaled from 0.0 MHz), 48.1 kHz, 72.2 Hz
(II) NOUVEAU(0): Modeline "800x600"x72.2 50.00 800 856 976 1040 600 637 643 666 +hsync +vsync (48.1 kHz)
(**) NOUVEAU(0): Driver mode "800x600": 49.5 MHz (scaled from 0.0 MHz), 46.9 kHz, 75.0 Hz
(II) NOUVEAU(0): Modeline "800x600"x75.0 49.50 800 816 896 1056 600 601 604 625 +hsync +vsync (46.9 kHz)
(**) NOUVEAU(0): Driver mode "800x600": 40.0 MHz (scaled from 0.0 MHz), 37.9 kHz, 60.3 Hz
(II) NOUVEAU(0): Modeline "800x600"x60.3 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz)
(**) NOUVEAU(0): Driver mode "800x600": 36.0 MHz (scaled from 0.0 MHz), 35.2 kHz, 56.2 Hz
(II) NOUVEAU(0): Modeline "800x600"x56.2 36.00 800 824 896 1024 600 601 603 625 +hsync +vsync (35.2 kHz)
(**) NOUVEAU(0): Driver mode "640x480": 31.5 MHz (scaled from 0.0 MHz), 37.9 kHz, 72.8 Hz
(II) NOUVEAU(0): Modeline "640x480"x72.8 31.50 640 664 704 832 480 489 491 520 -hsync -vsync (37.9 kHz)
(**) NOUVEAU(0): Driver mode "640x480": 31.5 MHz (scaled from 0.0 MHz), 37.5 kHz, 75.0 Hz
(II) NOUVEAU(0): Modeline "640x480"x75.0 31.50 640 656 720 840 480 481 484 500 -hsync -vsync (37.5 kHz)
(**) NOUVEAU(0): Driver mode "640x480": 30.2 MHz (scaled from 0.0 MHz), 35.0 kHz, 66.7 Hz
(II) NOUVEAU(0): Modeline "640x480"x66.7 30.24 640 704 768 864 480 483 486 525 -hsync -vsync (35.0 kHz)
(**) NOUVEAU(0): Driver mode "640x480": 25.2 MHz (scaled from 0.0 MHz), 31.5 kHz, 60.0 Hz
(II) NOUVEAU(0): Modeline "640x480"x60.0 25.20 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz)
(**) NOUVEAU(0): Driver mode "720x400": 28.3 MHz (scaled from 0.0 MHz), 31.5 kHz, 70.1 Hz
(II) NOUVEAU(0): Modeline "720x400"x70.1 28.32 720 738 846 900 400 412 414 449 -hsync +vsync (31.5 kHz)
(**) NOUVEAU(0): Display dimensions: (410, 230) mm
(**) NOUVEAU(0): DPI set to (84, 84)