From: Petr Vandrovec Date: Tue, 8 May 2007 07:38:02 +0000 (-0700) Subject: nvidiafb: Fix reversed DDC port X-Git-Tag: firefly_0821_release~29594 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=2707cd016b12d5e64c4feefcb5740b65f0c46845;p=firefly-linux-kernel-4.4.55.git nvidiafb: Fix reversed DDC port After I added some debugging printks I've found that code became a bit confused because it believed that primary monitor is 1920x540, but later it found in CRTC0's registers that panel size is 1920x1200 (Windows also agree that 1920x1200 is primary monitor, and 1920x1080i secondary one). When I applied attached patch then my monitor became as happy as it was before I connected HDMI cable to secondary output. Signed-off-by: Petr Vandrovec Signed-off-by: Antonino Daplas Cc: Dave Airlie Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/video/nvidia/nv_i2c.c b/drivers/video/nvidia/nv_i2c.c index b91d4045431d..bcde013d0b98 100644 --- a/drivers/video/nvidia/nv_i2c.c +++ b/drivers/video/nvidia/nv_i2c.c @@ -131,10 +131,10 @@ void nvidia_create_i2c_busses(struct nvidia_par *par) par->chan[1].par = par; par->chan[2].par = par; - par->chan[0].ddc_base = 0x3e; + par->chan[0].ddc_base = 0x36; nvidia_setup_i2c_bus(&par->chan[0], "nvidia #0"); - par->chan[1].ddc_base = 0x36; + par->chan[1].ddc_base = 0x3e; nvidia_setup_i2c_bus(&par->chan[1], "nvidia #1"); par->chan[2].ddc_base = 0x50;