dual monitor - different resolution

Помогите плиз. Гугл развел руками :(. 
Есть: 
*ноут с radeon mobility 7200. Выход на второй монитор. 
*монитор ноута - 1024х768 
*второй монитор - LCD Samsung SyncMaster 710v. (может 1280х1024). 
*мастдай позволяет ставить разное разрешение на них в одном рабочем столе. ХОЧУ ТО ЖЕ САМОЕ В ЛИНУХЕ! 
* в линухе разрешение у обоих выставляется в 1024х768. 
*Fedora Core 3, x.org, xinerama

xorg.conf: 
Section "Monitor"
 Identifier "Super VGA"
 ModelName "SyncMaster 710v"
 HorizSync 31.5-48.5
 VertRefresh 50-90
 Option "DPMS"
 # 1024x768 @ 60 Hz, 48.4 kHz hsync 
Modeline "1280x1024" 126.5 1280 1312 1472 1696 1024 1032 1040 1068 -hsync -vsync 
Modeline "1024x768" 65 1024 1032 1176 1344 768 771 777 806 -hsync -vsync 
------------------------------------------------------------- XOrg.log:

II) RADEON(0): DPMS capabilities: Off; RGB/Color Display 
(II) RADEON(0): First detailed timing is preferred mode
(II) RADEON(0): redX: 0.633 redY: 0.351 greenX: 0.298 greenY: 0.592 
(II) RADEON(0): blueX: 0.143 blueY: 0.092 whiteX: 0.316 whiteY: 0.337 
(II) RADEON(0): Supported VESA Video Modes: 
(II) RADEON(0): 720x400@70Hz 
(II) RADEON(0): 640x480@60Hz 
(II) RADEON(0): 640x480@67Hz 
(II) RADEON(0): 640x480@72Hz 
(II) RADEON(0): 640x480@75Hz 
(II) RADEON(0): 800x600@56Hz 
(II) RADEON(0): 800x600@60Hz 
(II) RADEON(0): 800x600@72Hz 
(II) RADEON(0): 800x600@75Hz 
(II) RADEON(0): 832x624@75Hz 
(II) RADEON(0): 1024x768@60Hz 
(II) RADEON(0): 1024x768@70Hz 
(II) RADEON(0): 1024x768@75Hz 
(II) RADEON(0): 1280x1024@75Hz 
(II) RADEON(0): 1152x870@75Hz 
(II) RADEON(0): Manufacturer's mask: 0 
(II) RADEON(0): Supported Future Video Modes: 
(II) RADEON(0): #0: hsize: 1280 vsize 1024 refresh: 60 vid: 32897 
(II) RADEON(0): #1: hsize: 1152 vsize 864 refresh: 75 vid: 20337 
(II) RADEON(0): Supported additional Video Mode: II) RADEON(0): clock: 108.0 MHz Image Size: 338 x 270 mm 
(II) RADEON(0): h_active: 1280 h_sync: 1328 h_sync_end 1440 h_blank_end 1688 h _border: 0 
(II) RADEON(0): v_active: 1024 v_sync: 1025 v_sync_end 1028 v_blanking: 1066 v _border: 0 
(II) RADEON(0): Ranges: V min: 56 V max: 75 Hz, H min: 30 H max: 81 kHz, PixCl ock max 140 MHz 
(II) RADEON(0): Monitor name: SyncMaster 
(II) RADEON(0): Serial No: HDDXA00208 
(II) RADEON(0): 
II) RADEON(0): Panel ID string: 1024x768 
(II) RADEON(0): Panel Size from BIOS: 1024x768 
(II) RADEON(0): BIOS provided dividers will be used. 
(WW) RADEON(0): Failed to detect secondary monitor, MergedFB/Clone mode disabled (==) 
RADEON(0): Using gamma correction (1.0, 1.0, 1.0) 
(II) RADEON(0): Validating modes on Primary head --------- 
(II) RADEON(0): Total number of valid DDC mode(s) found: 0 
(WW) RADEON(0): Mode 1280x1024 is out of range.
(WW) RADEON(0): Valid modes must be between 320x200-1024x768 
(II) RADEON(0): Valid mode using on-chip RMX: 1024x768

-------------------------------------- CUTTED ------------------------------------- 
II) RADEON(1): Validating modes on Secondary head ---------
(WW) RADEON(1): config file vrefresh range 50-90Hz not within DDC vrefresh range s. 
(II) RADEON(1): Super VGA: Using hsync range of 31.50-48.50 kHz 
(II) RADEON(1): Super VGA: Using vrefresh range of 50.00-90.00 Hz 
(II) RADEON(1): Clock range: 12.00 to 350.00 MHz 
(II) RADEON(1): Not using mode "1280x1024" (hsync out of range) 
(II) RADEON(1): Not using mode "1280x1024" (no mode of this name) 
(--) RADEON(1): Virtual size is 1024x768 (pitch 1024)