Comment 79 for bug 137234

hi Vincenzo Ciancia,

as we know A2 case is from pluging VGA after boot and run "$xrandr --output VGA --auto"

I find the register-dump difference between case A2 and case B is mode line.

for case A2 is
1024x768 (0x3e) 94.5MHz +HSync +VSync *current +preferred
        h: width 1024 start 1072 end 1168 total 1376 skew 0 clock 68.7KHz
        v: height 768 start 769 end 772 total 808 clock 85.0Hz

for case B is
1024x768 (0x5c) 65.0MHz -HSync -VSync *current
        h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.4KHz
        v: height 768 start 771 end 777 total 806 clock 60.0Hz

So under A2 case, could you try to run "$xrandr --output VGA --mode 0x5c"

then run "$xrandr --verbose" to check whether VGA is using the same mode line with that of above case B ? (key *current shows the current mode line )

Thanks
Ma Ling