Mini2440 Shifted screen problem
From Kenneth Noyens
New solution
The new mini2440 kernel has support for both 3.5" TFT screens.
You can edit the mini2440= linux boot argument:
- mini2440=0tb: 3.5" TFT (old model "N35") - mini2440=1tb: 7" TFT - mini2440=2tb: VGA - mini2440=3tb: 3.5" TFT (new model as Nov 2009 "T35") - mini2440=4tb: 5.6" TFT (Innolux AT056TN52)
Old solution
If your 3,5" screen is a bit shifted to the left (or to the right) you probably have a misconfigured screen.
You have 2 different 3,5" screens that are shipped with the mini2440:
- T35 (new one as nov 2009) - N35 (old one)
The T35 uses different timings.
Look for the file arch/arm/mach-s3c2440/mach-mini2440.c and search this:
[0] = { /* mini2440 + 3.5" TFT + touchscreen */ Michel Pollet 2009-03-25 17:19:14 +0000 149 _LCD_DECLARE( 7, /* The 3.5 is quite fast */ 240, 21, 38, 6, /* x timing */ 320, 4, 4, 2, /* y timing */ 60), /* refresh rate */ .lcdcon5 = (S3C2410_LCDCON5_FRM565 | S3C2410_LCDCON5_INVVLINE | S3C2410_LCDCON5_INVVFRAME | S3C2410_LCDCON5_INVVDEN | S3C2410_LCDCON5_PWREN), },
Change the timings to:
240, 21, 25, 6, /* x timing */ 320, 2, 4, 2, /* y timing */