i.MX Processors中的主题 Re: Remove Cursor pointer

Remove Cursor pointer

enaud — Mon, 07 May 2012 13:56:41 GMT

Hi,

How remove mouse cursor from my application?

Re: Remove Cursor pointer

enaud — Mon, 07 May 2012 20:50:30 GMT

nothing?

Re: Remove Cursor pointer

Yuri — Thu, 10 May 2012 05:42:12 GMT

Please try the following :

"Removing the Cursor of LCD framebuffer"

http://www.imxdev.org/wiki/index.php?title=All

Re: Remove Cursor pointer

enaud — Thu, 10 May 2012 08:00:13 GMT

thanks but i'm on LVDS display...

Infact it not work!

Re: Remove Cursor pointer

enaud — Tue, 15 May 2012 08:00:30 GMT

Re: Remove Cursor pointer

enaud — Thu, 17 May 2012 07:37:20 GMT

Re: Remove Cursor pointer

enaud — Sat, 19 May 2012 18:05:00 GMT

i'veresolved

Re: Remove Cursor pointer

erickang — Thu, 17 Jan 2013 04:42:14 GMT

Hi Giuseppe Ventura,

I want to remove the cursor in the LCD.

For this, I found some reference.

I could perform the unblinking cursor and the hidden cursor.

- cursor unblink

~ $ echo 0 > /sys/class/graphics/fbcon/cursor_blink

- cursor hide

~ $ echo -e '\033[?17;0;0c' > /dev/tty1

But I couldn't remove the cursor.

I could see the black cursor position not to be removed.

In other words, I could see the black cursor (not blinking) when I performed the upper command on the white displayed image of LCD.

Could you tell me how to remove the cursor?

And Yuri Muhin,

I could not find the reference site, "Removing the Cursor of LCD framebuffer".

http://www.imxdev.org/wiki/index.php?title=All

Could you give me the correct address for that?

Re: Remove Cursor pointer

Yuri — Thu, 29 Oct 2020 09:05:02 GMT

Removing the Cursor of LCD framebuffer

The Linux framebuffer starts with a cursor on screen, to hides this cursor you can use this command:

echo -e -n '\033[?25l' > /dev/tty0

Re: Remove Cursor pointer

erickang — Mon, 21 Jan 2013 01:13:29 GMT

Dear Yuri Muhin,

Thanks for your response.

This command hides the cursor,

but the previous cursor leave a trace with black mark.

I want to remove the black cursor mark.

Could you tell me the method?

Best Regards,

Eric.

Re: Remove Cursor pointer

erickang — Mon, 21 Jan 2013 08:20:03 GMT

I solved the problem.

For this, I modified the followed files in i.MX25.

(refer to "// Eric" comments in the files)

- No use Cursor Blink

. drivers/video/console/fbcon.c .

- No display 1st Cursor

. drivers/video/console/bitblit.c

Best Regards,

Eric.

Re: Remove Cursor pointer

Vijayaragavan — Sat, 13 Jul 2013 08:19:42 GMT

Hi Eric,

How are you? Nice to see you in the forum.

would like to know how to interface 8bit Dot matric Monochrome LCD with i.mx25 PDK board. Could you please throw some light on this? Lines that we are looking out for interfacing are(LCDC_LD0 to LCDC_LD7) from UF/IF connector(from NVCC_LCDC moudule of i.mx25) and also have no idea how enable them from software.In the existing kernel image we too have fb0 and fb1 devices under /dev diretory. if any sample code is aviable please share some link or please direct me to correct way.

Thanks