I've compiled and tried many kernels over the last days and no kernel seems to support 1280x1024 resolution setting for the VGA connector on the i.MX53 QSB.
Only the original 188.8.131.52 kernel branch for IMX seems to support this resolution.
VGA output works well, but the kernel ignores the u-boot settings for the VGA output and permanently switches to 1024x768@60.
Has someone tried and sucessfully got SXGA on VGA working with newer self-compiled kernels (e.g. 3.6.39) ?