Hi, I installed Red Hat linux on a presario 2800T with AT radeon Mobile M7 graphic card and 32MB of graphic memory, LCD display 1024x768. I chose Generic Laptop display 1024x768 with Red Hat Xconfiguration. The graphic card is recognized by linux. I get an error when i probe the screen configuration: "There was an error detecting the video ram on your card". Setting manually 32MB, No clockchip, 16 bit 1024x768, the Xserver starts but the image is blurred. The vertical alignment is misplaced. The situation improves slightly if I set 24 bit but still very blurred. I include the XF86Config-4 file. There is anyone who can help? Thanks, Marco # XFree86 4.2.0 configuration generated by Xconfigurator 4.10.7 Section "ServerLayout" Identifier "XFree86 Configured" Screen 0 "Screen0" 0 0 InputDevice "Mouse0" "CorePointer" InputDevice "Keyboard0" "CoreKeyboard" EndSection # Red Hat Linux 6.0 and later use the xfs font server for improved # interactive performance Section "Files" FontPath "unix/:7100" EndSection # Module loading section Section "Module" Load "dbe" # Double-buffering Load "GLcore" # OpenGL support Load "dri" # Direct rendering infrastructure Load "glx" # OpenGL X protocol interface Load "extmod" # Misc. required extensions Load "v4l" # Video4Linux # Load "record" # X event recorder # You only need the following two modules if you do not use xfs. # Load "freetype" # TrueType font handler # Load "type1" # Adobe Type 1 font handler EndSection Section "InputDevice" Identifier "Keyboard0" Driver "keyboard" Option "XkbLayout" "us" EndSection Section "InputDevice" Identifier "Mouse0" Driver "mouse" Option "Device" "/dev/mouse" Option "Protocol" "PS/2" Option "Emulate3Buttons" "on" Option "ZAxisMapping" "4 5" EndSection Section "Monitor" Identifier "Generic Laptop Display Panel 1024x768" VendorName "Unknown" ModelName "Unknown" HorizSync 31.5-48.5 VertRefresh 40-70 Option "dpms" EndSection Section "Device" Identifier "ATI|Radeon Mobility M7 LW" Driver "radeon" BoardName "Unknown" EndSection Section "Device" Identifier "Linux Frame Buffer" Driver "fbdev" BoardName "Unknown" EndSection Section "Screen" Identifier "Screen0" Device "ATI|Radeon Mobility M7 LW" Monitor "Generic Laptop Display Panel 1024x768" DefaultDepth 16 Subsection "Display" Depth 16 Modes "1024x768" EndSubSection EndSection Section "DRI" Mode 0666 EndSection
