HDMI - Resolution Isuue

rizwan_s — Mon, 18 Sep 2017 13:20:44 GMT

Hi,

I am working on imx6Q board with linux yocto 3.14.38.

Please clarify the following observations.

1.In Uboot, I have set 1920x1080@60 and connected the 1920x1080 hdmi monitor, then the image looks proper and fbset shows the proper values for resolution as 1920x1080.

If i connect other lower resolution monitor (1280x720) ,The image looks like 640x480 and when verified with fbset, it shows 640x480

2.If the resolution is changed to 1280x720@60 during uboot, The image looks proper on 1280x720 Monitor.

If the same is connected to 1920x1080 monitor.It shows big icons and fbset shows the resolution as 640x480@60

How does the resolution differs on HDMI monitor.Is it due to HDMI monitor settings or due to settings in Linux BSP.

Please clarify

Thanks and Regards

Rizwan Syed

Re: HDMI - Resolution Isuue

igorpadykov — Mon, 18 Sep 2017 23:40:28 GMT

Hi Rizwan

please look at splashscreen patches on

Patch to support uboot logo keep from uboot to kernel for NXP Linux and Android BSP (HDMI, LCD and LVDS)

seems 640x480 is default resolution so it is used if any problem happens.

Best regards
igor
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topic Re: HDMI - Resolution Isuue in i.MX Processors

HDMI - Resolution Isuue

Re: HDMI - Resolution Isuue