Comment 56 for bug 292214

I downloaded the patch, edited the xorg.conf and restarted, but now what happens is I get a blank screen with just the mouse cursor.... What should I do?
Here's the errors I get in the log (which i have also attached)
(EE) MGA(0): Static buffer allocation failed, not initializing the DRI
(EE) MGA(0): Need at least 15360 kB video memory at this resolution, bit depth
...
(EE) MGA(1): Not initializing the DRI on the second head

and here is the xorg.conf I have:
Section "Device"
 Identifier "Configured Video Device"
 BusID "PCI:2:0:0"
 Option "HWcursor" "true"
 Driver "mga"
 Screen 0
EndSection

Section "Device"
 Identifier "Configured Video Device 2"
 BusID "PCI:2:0:0"
 Option "HWcursor" "true"
 Driver "mga"
 Screen 1
EndSection

Section "Monitor"
 Identifier "Configured Monitor"
 Option "DPMS"
EndSection

Section "Monitor"
 Identifier "Configured Monitor 2"
 Option "DPMS"
EndSection

Section "Screen"
 Identifier "Main Screen"
 Device "Configured Video Device"
 Monitor "Configured Monitor"
 DefaultDepth 24
 SubSection "Display"
  Depth 24
  Modes "1280x1024"
 EndSubSection
EndSection

Section "Screen"
 Identifier "Second Screen"
 Device "Configured Video Device 2"
 Monitor "Configured Monitor 2"
 DefaultDepth 24
 SubSection "Display"
  Depth 24
  Modes "1280x1024"
 EndSubSection
EndSection

Section "ServerLayout"
 Identifier "Default Layout"
 Screen 0 "Main Screen"
 Screen 1 "Second Screen" RightOf "Main Screen"
EndSection

Section "ServerFlags"
    Option "Xinerama"
EndSection