Posts by petersen

petersen · Sep 1st 2021

Hello,

we use fsimx6-2020.03 for our device. The developed patches should be included in our version, if i am not mistaken.

The information that certain devices can not be handled by U-Boot is good enough for us. Thank you already!

Best Regards

Arne Petersen

petersen · Aug 31st 2021

Hello F&S Community,

we are facing an issue during the update/install mechanism. On certain USB memory devices the update (update.scr) process will fail.

Recent appearance of the problem showed that u-boot didn't seem to see the USB memory at all.

We use FAT32 only at the moment.

Are there any restrictions in case of quality of the storage devices? Is this problem known or are we rather alone with this behavior during the update mechanism?

Best Regards,

Arne Petersen

petersen · Aug 25th 2020

Hello and thank you for your post!

I am in direct contact with one of your developers at the moment and will get a starter kit soon to try the software on the baseboard. I did not mention that we use a custom board from F&S.

Quote

How did you get the EDID specificiations that you listed above? Was this some output of a Linux command on our board?

I used a program called EDIDViewer on my windows desktop.

The full dmsg :

dmesg_boot.txt

The complete serial output while booting :

serial_boot_output.txt

Best regards.

Edit 1:

Quote

So my guess would point to a problem when reading the EDID data.

I read the EDID data in /sys/devices/soc0/soc/20e0000.hdmi_video/edid (on the board):

Code

0x00 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0x00 0x10 0xAC 0xDC 0xA0 0x42 0x36 0x47 0x30
0x20 0x1B 0x01 0x03 0x80 0x35 0x1E 0x78 0xEA 0x05 0x65 0xA7 0x56 0x52 0x9C 0x27
0x0F 0x50 0x54 0xA5 0x4B 0x00 0x71 0x4F 0x81 0x80 0xA9 0xC0 0xD1 0xC0 0x01 0x01
0x01 0x01 0x01 0x01 0x01 0x01 0x02 0x3A 0x80 0x18 0x71 0x38 0x2D 0x40 0x58 0x2C
0x45 0x00 0x0F 0x28 0x21 0x00 0x00 0x1E 0x00 0x00 0x00 0xFF 0x00 0x43 0x57 0x36
0x59 0x37 0x37 0x38 0x42 0x30 0x47 0x36 0x42 0x0A 0x00 0x00 0x00 0xFC 0x00 0x44
0x45 0x4C 0x4C 0x20 0x50 0x32 0x34 0x31 0x37 0x48 0x0A 0x20 0x00 0x00 0x00 0xFD
0x00 0x38 0x4C 0x1E 0x53 0x11 0x00 0x0A 0x20 0x20 0x20 0x20 0x20 0x20 0x01 0xBC
0x02 0x03 0x17 0xB1 0x4C 0x90 0x05 0x04 0x03 0x02 0x07 0x16 0x01 0x14 0x1F 0x12
0x13 0x65 0x03 0x0C 0x00 0x10 0x00 0x02 0x3A 0x80 0x18 0x71 0x38 0x2D 0x40 0x58
0x2C 0x45 0x00 0x0F 0x28 0x21 0x00 0x00 0x1E 0x01 0x1D 0x80 0x18 0x71 0x1C 0x16
0x20 0x58 0x2C 0x25 0x00 0x0F 0x28 0x21 0x00 0x00 0x9E 0x01 0x1D 0x00 0x72 0x51
0xD0 0x1E 0x20 0x6E 0x28 0x55 0x00 0x0F 0x28 0x21 0x00 0x00 0x1E 0x8C 0x0A 0xD0
0x8A 0x20 0xE0 0x2D 0x10 0x10 0x3E 0x96 0x00 0x0F 0x28 0x21 0x00 0x00 0x18 0x00

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Those raw data is the same as the output of the EDID Viewer (windows desktop) when compared with a web based EDID viewer.

Output of the EDID Viewer (windows desktop):

Code

0x00 00 FF FF FF FF FF FF 00 10 AC DB A0 42 36 47 30
0x10 20 1B 01 04 A5 35 1E 78 3A 05 65 A7 56 52 9C 27
0x20 0F 50 54 A5 4B 00 71 4F 81 80 A9 C0 D1 C0 01 01
0x30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
0x40 45 00 0F 28 21 00 00 1E 00 00 00 FF 00 43 57 36
0x50 59 37 37 38 42 30 47 36 42 0A 00 00 00 FC 00 44
0x60 45 4C 4C 20 50 32 34 31 37 48 0A 20 00 00 00 FD
0x70 00 38 4C 1E 53 11 01 0A 20 20 20 20 20 20 00 47

Edit 2:

After further investigation i could not reproduce the correct EDID data in /sys/devices/soc0/soc/20e0000.hdmi_video/edid, it stayed empty (0x00).

Additionally i checked the status of /sys/devices/soc0/soc/20e0000.hdmi_video/cable_state and to my surprise it contains plugin, when no hdmi is connected and plugout, when hdmi is connected. That should probably not happen.

I build the kernel with debug enabled and the following output comes up when i connect the hdmi monitor to my board:

Code

mxc_hdmi 20e0000.hdmi_video: Hotplug interrupt received
mxc_hdmi 20e0000.hdmi_video: phy_int_stat=0x3d, phy_int_pol=0x0
mxc_hdmi 20e0000.hdmi_video: EVENT=plugout
mxc_hdmi 20e0000.hdmi_video: mxc_hdmi_cable_disconnected
mxc_hdmi 20e0000.hdmi_video: mxc_hdmi_phy_disable
hdmi_disable_overflow_interrupts
mxc_hdmi 20e0000.hdmi_video: mxc_hdmi_phy_disable - exit
hdmi_disable_overflow_interrupts

If i unplug hdmi:

Code

mxc_hdmi 20e0000.hdmi_video: Hotplug interrupt received
mxc_hdmi 20e0000.hdmi_video: phy_int_stat=0x3d, phy_int_pol=0x2
mxc_hdmi 20e0000.hdmi_video: EVENT=plugin
mxc_hdmi 20e0000.hdmi_video: mxc_hdmi_cable_connected
mxc_hdmi 20e0000.hdmi_video: mxc_hdmi_read_edid
mxc_hdmi 20e0000.hdmi_video: read failed
mxc_hdmi 20e0000.hdmi_video: Read EDID again
mxc_hdmi 20e0000.hdmi_video: mxc_hdmi_read_edid
mxc_hdmi 20e0000.hdmi_video: read failed
mxc_hdmi 20e0000.hdmi_video: mxc_hdmi_default_modelist
mxc_hdmi 20e0000.hdmi_video: create default modelist
mxc_sdc_fb fb@0: Reconfiguring framebuffer
mxc_sdc_fb fb@0: pixclock = 148500000l Hz
mxc_sdc_fb fb@0: Y wrap disabled
mxc_hdmi 20e0000.hdmi_video: mxc_hdmi_phy_init
hdmi_enable_overflow_interrupts
mxc_hdmi 20e0000.hdmi_video: hdmi_phy_configure
mxc_hdmi 20e0000.hdmi_video: hdmi_phy_configure
mxc_sdc_fb fb@0: Y wrap disabled
mxc_sdc_fb fb@0: Updating SDC DISP3 BG - DI1 buf 0 address=0x24C00000
mxc_sdc_fb fb@0: Update complete
mxc_sdc_fb fb@0: Reconfiguring framebuffer
mxc_sdc_fb fb@0: pixclock = 148500000l Hz
mxc_sdc_fb fb@0: Y wrap disabled
mxc_hdmi 20e0000.hdmi_video: mxc_hdmi_phy_init
hdmi_enable_overflow_interrupts
mxc_hdmi 20e0000.hdmi_video: hdmi_phy_configure
mxc_hdmi 20e0000.hdmi_video: hdmi_phy_configure
mxc_sdc_fb fb@0: Y wrap disabled
mxc_sdc_fb fb@0: Updating SDC DISP3 BG - DI1 buf 0 address=0x24C00000
mxc_sdc_fb fb@0: Update complete
mxc_sdc_fb fb@0: Reconfiguring framebuffer
mxc_sdc_fb fb@0: pixclock = 148500000l Hz
mxc_sdc_fb fb@0: Y wrap disabled
mxc_hdmi 20e0000.hdmi_video: mxc_hdmi_phy_init
hdmi_enable_overflow_interrupts
mxc_hdmi 20e0000.hdmi_video: hdmi_phy_configure
mxc_hdmi 20e0000.hdmi_video: hdmi_phy_configure
mxc_sdc_fb fb@0: Y wrap disabled
mxc_sdc_fb fb@0: Updating SDC DISP3 BG - DI1 buf 0 address=0x24C00000
mxc_sdc_fb fb@0: Update complete
mxc_hdmi 20e0000.hdmi_video: mxc_hdmi_set_mode
mxc_hdmi 20e0000.hdmi_video: mxc_hdmi_set_mode: Video mode same as previous
mxc_hdmi 20e0000.hdmi_video: mxc_hdmi_setup
mxc_hdmi 20e0000.hdmi_video: mxc_hdmi_setup - video mode changed
edid mode
hdmi_disable_overflow_interrupts
mxc_hdmi 20e0000.hdmi_video: CEA mode used vic=16
mxc_hdmi 20e0000.hdmi_video: hdmi_av_composer
mxc_hdmi 20e0000.hdmi_video: final pixclk = 148500000
mxc_hdmi 20e0000.hdmi_video: hdmi_av_composer exit
mxc_hdmi 20e0000.hdmi_video: mxc_hdmi_phy_init
hdmi_enable_overflow_interrupts
mxc_hdmi 20e0000.hdmi_video: hdmi_phy_configure
mxc_hdmi 20e0000.hdmi_video: hdmi_phy_configure
mxc_hdmi 20e0000.hdmi_video: mxc_hdmi_enable_video_path
mxc_hdmi 20e0000.hdmi_video: mxc_hdmi_setup CEA mode
mxc_hdmi 20e0000.hdmi_video: hdmi_enable_audio_clk
mxc_hdmi 20e0000.hdmi_video: set up AVI frame
mxc_hdmi 20e0000.hdmi_video: mxc_hdmi_setup exit
mxc_hdmi 20e0000.hdmi_video: mxc_hdmi_cable_connected exit

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petersen · Aug 18th 2020

Thank you for the fast reply,

I managed to rebuild the device tree with these changes, but the display does not get recognized.

Hopefully I can get some suggestions to understand what I am missing here.

Here is my fb0 --info :

Code

root@econo206:~# fbset -fb /dev/fb0 --info
mode "1920x1080-60"
# D: 148.500 MHz, H: 67.500 kHz, V: 60.000 Hz
geometry 1920 1080 1920 1088 32
timings 6734 148 88 36 4 44 5
hsync high
vsync high
rgba 8/16,8/8,8/0,8/24
endmode
Frame buffer device information:
Name : DISP3 BG - DI1
Address : 0x24c00000
Size : 16727040
Type : PACKED PIXELS
Visual : TRUECOLOR
XPanStep : 1
YPanStep : 1
YWrapStep : 1
LineLength : 7680
Accelerator : No

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The xrandr outcome :

Code

root@econo206:~# xrandr
Screen 0: minimum 240 x 240, current 1920 x 1080, maximum 8192 x 8192
DISP3 BG - DI1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
U:1920x1080p-60 60.00*+
U:1920x1080p-50 50.00
U:1920x1080p-30 30.00
U:1920x1080p-25 25.00
U:1920x1080p-24 24.00
U:1280x720p-120 120.00
U:1280x720p-100 100.00
U:1280x720p-50 50.00
U:1280x720p-60 60.00
U:1440x576p-50 50.00
U:1440x480p-60 60.00
U:1440x288p-50 50.08
U:720x576p-50 50.00
U:720x480p-60 59.94
U:1440x240p-60 59.94
U:640x480p-60 59.94

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The kernel messages (grep mxc) :

Code

root@econo206:~# dmesg | grep mxc
Kernel command line: console=ttymxc3,115200 login_tty=ttymxc3,115200 mtdparts=gpmi-nand:256k(NBoot)ro,768k(UserDef),256k(Refresh)ro,768k(UBoot)ro,256k(UBootEnv)ro,8m(Kernel)ro,1792k(FDT)ro,-(TargetFS) rootfstype=ubifs ubi.mtd=TargetFS root=ubi0:rootfs rw video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24
mxc_clocksource_init 3000000
clocksource mxc_timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 637086815595 ns
Switched to clocksource mxc_timer1
mxc_hdmi 20e0000.hdmi_video: Detected HDMI controller 0x13:0x1a:0xa0:0xc1
mxc_sdc_fb fb@0: registered mxc display driver hdmi
2020000.serial: ttymxc0 at MMIO 0x2020000 (irq = 25, base_baud = 5000000) is a IMX
21e8000.serial: ttymxc1 at MMIO 0x21e8000 (irq = 298, base_baud = 5000000) is a IMX
21f0000.serial: ttymxc3 at MMIO 0x21f0000 (irq = 299, base_baud = 5000000) is a IMX
console [ttymxc3] enabled
21f4000.serial: ttymxc4 at MMIO 0x21f4000 (irq = 300, base_baud = 5000000) is a IMX
ehci-mxc: Freescale On-Chip EHCI Host driver
mxc_vpu 2040000.vpu_fsl: VPU initialized
mxc_vdoa 21e4000.vdoa: i.MX Video Data Order Adapter(VDOA) driver probed
mxc_hdmi_cec soc:hdmi_cec@00120000: HDMI CEC initialized

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The kernel :

Code

root@econo206:~# uname -a
Linux econo206 4.1.15-rt18-F+S #2 SMP PREEMPT RT Mon Aug 17 06:29:55 UTC 2020 armv7l GNU/Linux

I use a DELL P2417H connected via HDMI.

EDID Data :

Code

Vendor/Product Identification:
Monitor Name : DELL P2417H
Monitor Serial Number : CW6Y778B0G3B
Manufacturer Name : Dell Computer Corp.
Product Id : A0DB
Serial Number : 809972546
Week Of Manufacture : 32
Year Of Manufacture : 2017
EDIDVersion : V1.4
Number Of Extension Flag : 0
Display parameters:
Video Input Definition : Digital Signal
DFP1X Compatible Interface : True
Max Horizontal Image Size : 530 mm
Max Vertical Image Size : 300 mm
Max Display Size : 24 Inches
Power Management and Features:
Standby : Not Supported
Suspend : Not Supported
ActiveOff : Supported
Video Input : 3
sRGB Default ColorSpace : False
Default GTF : Not Supported
Prefered Timing Mode : True
Gamma/Color and Etablished Timings:
Display Gamma : 2,2
Red : x = 0,652 - y = 0,336
Green : x = 0,321 - y = 0,61
Blue : x = 0,153 - y = 0,061
White : x = 0,313 - y = 0,329
Etablished Timings :
800 x 600 @ 60Hz (VESA)
640 x 480 @ 75Hz (VESA)
640 x 480 @ 60Hz (IBM, VGA)
720 x 400 @ 70Hz (IBM, VGA)
1280 x 1024 @ 75Hz (VESA)
1024 x 768 @ 75Hz (VESA)
1024 x 768 @ 60Hz (VESA)
800 x 600 @ 75Hz (VESA)
Display Type : Undifined
Standard Timing:
Standard Timings n° 1
X Resolution : 1152
Y Resolution : 864
Vertical Frequency : 75
Standard Timings n° 2
X Resolution : 1280
Y Resolution : 1024
Vertical Frequency : 60
Standard Timings n° 3
X Resolution : 1600
Y Resolution : 900
Vertical Frequency : 60
Standard Timings n° 4
X Resolution : 1920
Y Resolution : 1080
Vertical Frequency : 60
Preferred Detailed Timing:
Pixel Clock : 148,5 Mhz
Horizontal Active : 1920 pixels
Horizontal Blanking : 280 pixels
Horizontal Sync Offset : 88 pixels
Horizontal Sync Pulse Width : 44 pixels
Horizontal Border : 0 pixels
Horizontal Size : 527 mm
Vertical Active : 1080 lines
Vertical Blanking : 45 lines
Vertical Sync Offset : 4 lines
Vertical Sync Pulse Width : 5 lines
Vertical Border : 0 lines
Vertical Size : 296 mm
Input Type : Digital Separate
Interlaced : False
VerticalPolarity : True
HorizontalPolarity : True
Monitor Range Limit:
Maximum Vertical Frequency : 76 Hz
Minimum Vertical Frequency : 56 Hz
Maximum Horizontal Frequency : 83 KHz
Minimum Horizontal Frequency : 30 KHz
Maximum Pixel Clock : 170 MHz

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Any kind of help is highly appreciated!

Best regards.

Edit:

If i unplug the monitor the following output comes up :

Code

mxc_hdmi 20e0000.hdmi_video: Read EDID again
mxc_hdmi 20e0000.hdmi_video: create default modelist

petersen · Aug 17th 2020

Hello,

I know this Topic is a little old, but it fits my problem and I do not think things changed.

The solution is given for Buildroot, is it possible to list the changes between Buildroot and Yocto?

Thank you in andvance!

Posts by petersen

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