• State
  • Locked Locked
  • Replies 5 replies
  • Subscribers 97 subscribers
  • Views 514 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Problem with displaying 1080p on TI8148 EVK

May Fong Lee
Intellectual 880 points


Hi all,

I tried to display 1080p on TI8148 EVK LCD using EZSDK 5.05.01.04 platform but image is distorted as shown in the image attached.

The following are the steps I did for this tryout:

modified load-hd-firmware.sh to modprobe vpss sbufaddr=0xBFB00000 mode=dvo2:1080p-60 i2c_mode=1

echo 0 > /sys/devices/platform/vpss/display1/enabled

echo 1080p-60 > /sys/devices/platform/vpss/display1/mode

echo 1 > /sys/devices/platform/vpss/display1/enabled

fbset -xres 1920 -yres 1080 -vxres 1920 -vyres 1080

./saFbdevDisplay

Is there any other settings needed?

Thank you for any help extended.

Regards

May

  • 0 in reply to Margarita Gashova
    Intellectual 880 points

    Hi Margarita,

    Thank you for your reply.

    I had read through this user guide and had followed "Switching fb0(graphics0) output from HDMI VEVC(display0) to DVO2 VENC(display1)" to switch fb0 to dvo2 prior to carrying those steps I mentioned earlier.

    As dvo2 is connected to LCD, will changing the display1/mode affects the timing to LCD as the LCD is only 800x480 resolution?

    Regards

    May

  • 0 in reply to May Fong Lee
    TI__Guru* 80190 points

    Hello,

    Could you try:

    dm814x-evm login: root

    root@dm814x-evm:~# /etc/init.d/matrix-gui-e stop
    Stopping Matrix GUI application.
    root@dm814x-evm:~# /etc/init.d/pvr-init stop
    Stopping PVR
    root@dm814x-evm:~# echo 1:dvo2 > /sys/devices/platform/vpss/graphics0/nodes
    root@dm814x-evm:~# echo 0 > /sys/devices/platform/vpss/display1/enabled
    root@dm814x-evm:~# echo 720p-60 > /sys/devices/platform/vpss/display1/mode
    root@dm814x-evm:~# echo 1 > /sys/devices/platform/vpss/display1/enabled
    root@dm814x-evm:~# /etc/init.d/matrix-gui-e start
    Removing stale PID file /var/run/matrix-gui-e.pid.
    Starting Matrix GUI application.
    root@dm814x-evm:~# cat /sys/devices/platform/vpss/display1/mode
    720p-60
    root@dm814x-evm:~# cd /usr/share/ti/ti-omx/
    root@dm814x-evm:/usr/share/ti/ti-omx# ./saFbdevDisplay

    Fix Screen Info:
    ----------------
    Line Length - 3200
    Physical Address = 93a00000
    Buffer Length = 25165824

    Var Screen Info:
    ----------------
    Xres - 800
    Yres - 480
    Xres Virtual - 800
    Yres Virtual - 1440
    Bits Per Pixel - 32
    Pixel Clk - 29850
    Rotation - 0

    root@dm814x-evm:/usr/share/ti/ti-omx#

    Let me know the result.

    Best Regards,

    Margarita

  • 0 in reply to Margarita Gashova
    Intellectual 880 points

    Hi Margarita,

    I had tried out those steps you mentioned and attached is the color bar displayed on the LCD.

    Its shifted to the right side of the screen.

    Just a note, I couldn't find saFbdevDisplay in /usr/share/ti/ti-omx.

    root@dm814x-evm:/usr/share/ti/ti-omx# ls

    adec_snt_a8host_debug.xv5T
    audio_encode_a8host_debug.xv5T
    c6xtest_a8host_debug.xv5T
    capture_encode_a8host_debug.xv5T
    decode_a8host_debug.xv5T
    decode_display_a8host_debug.xv5T
    decode_mosaicdisplay_a8host_debug.xv5T
    display_a8host_debug.xv5T
    encode_a8host_debug.xv5T

    I built saFbdevDisplay from ti-ezsdk_dm814x-evm_5_05_01_04/example-applications/linux-driver-examples-psp04.04.00.01/video.

    Hope it doesn't make a differences.

    Thanks & Regards

    May

  • 0 in reply to May Fong Lee
    TI__Guru* 80190 points

    Hello,

    Lee, May Fong said:

    Its shifted to the right side of the screen.

    I will check this.

    Lee, May Fong said:

    Just a note, I couldn't find saFbdevDisplay in /usr/share/ti/ti-omx.

    root@dm814x-evm:/usr/share/ti/ti-omx# ls

    adec_snt_a8host_debug.xv5T
    audio_encode_a8host_debug.xv5T
    c6xtest_a8host_debug.xv5T
    capture_encode_a8host_debug.xv5T
    decode_a8host_debug.xv5T
    decode_display_a8host_debug.xv5T
    decode_mosaicdisplay_a8host_debug.xv5T
    display_a8host_debug.xv5T
    encode_a8host_debug.xv5T

    I built saFbdevDisplay from ti-ezsdk_dm814x-evm_5_05_01_04/example-applications/linux-driver-examples-psp04.04.00.01/video.

    Hope it doesn't make a differences.

    It is the same demo I just cp it in this folder.

    Best Regards,

    Margarita