Bug 8338

Summary: 1400x1050 display shifted to left and leftmost pixels appear at right
Product: xorg Reporter: Raf LaPietra <raflapietra>
Component: Driver/TridentAssignee: Xorg Project Team <xorg-team>
Severity: normal    
Priority: high    
Version: unspecified   
Hardware: SPARC   
OS: Solaris   
i915 platform: i915 features:

Description Raf LaPietra 2006-09-18 08:15:13 UTC
On a 1GHZ toshiba tecra 8200 which uses a trident cyberblade XP and a sxga+ LCD
at 1400x1050, the screen is shifted left. The leftmost pixels on the screen
display appear on the right edge of the screen. Note that though this is
occuring for me on Solaris 10, this is documented on linux at
http://bugs.xfree86.org/show_bug.cgi?id=1076 .The solution documented there was
to comment out the lines :

fullSize = (mode->HDisplay == LCD[i].display_x) 
	        && (mode->VDisplay == LCD[i].display_y);

in the trident_dac.c and recompile the driver. I used the Xorg 6.9 tree and it
worked for me.

The following are pertinent entries in the xorg.conf file I used:
Section "Monitor"
        Identifier   "Monitor0"
        VendorName   "Monitor Vendor"
        ModelName    "sxga+"
        HorizSync    28-90
        VertRefresh  40-110
        ModeLine "1400x1050" 107.85  1400 1450 1500 1999  1050 1058 1070 1150
        ModeLine "1280x1024" 108.00  1280 1328 1440 1688  1024 1025 1028 1066
+hsync +vsync
        Option       "dpms"
Section "Device"
        Option      "Display1400" "true"
        VideoRAM    16384
        Identifier  "Card0"
        Driver      "trident"
        VendorName  "Trident Microsystems"
        BoardName   "CyberBlade/XP"
        BusID       "PCI:1:0:0"
Section "Screen"
        Identifier "Screen0"
        Device     "Card0"
        Monitor    "Monitor0"
        SubSection "Display"
                Depth     16
                Modes     "1400x1050" "1280x1024" "800x600"
        SubSection "Display"
                Depth     24
                Modes     "1400x1050" "1280x1024" "800x600"
Comment 1 Alan Hourihane 2006-10-02 01:28:27 UTC

*** This bug has been marked as a duplicate of 431 ***

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