Where is the kernel printing log (dmesg)? @davemf @Alonso_BV
Sorry for that…
I sent on your email.
Thank you!
Hello!
I tested DaveMF firmware for VIM2 with HSD080IFW1 1024x600. When the screen resolution is 1920x1080 everything is fine, I switch to 1024x600 then reboot and the green screen appears, sometimes when the screen resolution changes the image distorts, only the firmware of the device helped. Tried 1280x800 also works fine, changed to 1024x768, again skewed and a green screen. On the home TV the same as on HSD080IFW1.
Here’s the video youtu.be/-1hD8AsEZtU
With a skewed image - youtu.be/oPokJV1DqOs
Logs:
kvim2:/ $ su
kvim2:/ # cat /sys/class/display
tmp-mksh: cat: /sys/class/display: Is a directory
1|kvim2:/ # wm size
Physical size: 1024x600
kvim2:/ # fbset
mode "1024x600-0"
# D: 0.000 MHz, H: 0.000 kHz, V: 0.000 Hz
geometry 1024 600 1024 1800 32
timings 0 0 0 0 0 0 0
accel false
rgba 8/0,8/8,8/16,8/24
endmode
kvim2:/ # getbootenv
[EnableSelinux]: [permissive]
[active_slot]: [_a]
[baudrate]: [115200]
[bcb_cmd]: [get_valid_slot;]
[boot_part]: [boot]
[bootcmd]: [run storeboot]
[bootdelay]: [1]
[cmdline_keys]: [if keyman init 0x1234; then if keyman read usid ${loadaddr} str; then setenv bootargs ${bootargs} androidboot.serialno=${usid};setenv serial ${usid};fi;kbi ethmac;setenv bootargs ${bootargs} mac=${eth_mac} androidboot.mac=${eth_mac};if keyman read deviceid ${loadaddr} str; then setenv bootargs ${bootargs} androidboot.deviceid=${deviceid};fi;fi;]
[combine_key]: [saradc open 0;if saradc get_in_range 0x0 0x1f; then echo Detect function key;if gpio input GPIOAO_2; then echo Detect combine keys;store init 3; fi;fi;]
[cvbs_drv]: [0]
[cvbsmode]: [576cvbs]
[display_bpp]: [16]
[display_color_bg]: [0]
[display_color_fg]: [0xffff]
[display_color_index]: [16]
[display_height]: [1080]
[display_layer]: [osd1]
[display_width]: [1920]
[dtb_mem_addr]: [0x1000000]
[ethaddr]: [00:15:18:01:81:31]
[factory_reset_poweroff_protect]: [echo wipe_data=${wipe_data}; echo wipe_cache=${wipe_cache};if test ${wipe_data} = failed; then run init_display; run storeargs;if mmcinfo; then run recovery_from_sdcard;fi;if usb start 0; then run recovery_from_udisk;fi;run recovery_from_flash;fi; if test ${wipe_cache} = failed; then run init_display; run storeargs;if mmcinfo; then run recovery_from_sdcard;fi;if usb start 0; then run recovery_from_udisk;fi;run recovery_from_flash;fi; ]
[fb_addr]: [0x3d800000]
[fb_height]: [1080]
[fb_width]: [1920]
[fdt_high]: [0x20000000]
[firstboot]: [0]
[gatewayip]: [10.18.9.1]
[hdmimode]: [1024x600p60hz]
[hostname]: [arm_gxbb]
[init_display]: [osd open;osd clear;imgread pic logo bootup $loadaddr;bmp display $bootup_offset;bmp scale]
[initargs]: [rootfstype=ramfs init=/init console=ttyS0,115200 no_console_suspend earlyprintk=aml-uart,0xc81004c0 ramoops.pstore_en=1 ramoops.record_size=0x8000 ramoops.console_size=0x4000 ]
[ipaddr]: [10.18.9.97]
[jtag]: [disable]
[loadaddr]: [1080000]
[netmask]: [255.255.255.0]
[outputmode]: [1024x600p60hz]
[preboot]: [run bcb_cmd; run factory_reset_poweroff_protect;run upgrade_check;run init_display;run storeargs;run combine_key;run upgrade_key;run vim2_check;run wol_init;forceupdate;run switch_bootmode;]
[recovery_from_flash]: [setenv bootargs ${bootargs} aml_dt=${aml_dt} recovery_part={recovery_part} recovery_offset={recovery_offset};if itest ${upgrade_step} == 3; then if ext4load mmc 1:2 ${dtb_mem_addr} /recovery/dtb.img; then echo cache dtb.img loaded; fi;if ext4load mmc 1:2 ${loadaddr} /recovery/recovery.img; then echo cache recovery.img loaded; wipeisb; bootm ${loadaddr}; fi;else fi;if imgread kernel ${recovery_part} ${loadaddr} ${recovery_offset}; then wipeisb; bootm ${loadaddr}; fi;]
[recovery_from_sdcard]: [setenv bootargs ${bootargs} aml_dt=${aml_dt} recovery_part={recovery_part} recovery_offset={recovery_offset};if fatload mmc 0 ${loadaddr} aml_autoscript; then autoscr ${loadaddr}; fi;if fatload mmc 0 ${loadaddr} recovery.img; then if fatload mmc 0 ${dtb_mem_addr} dtb.img; then echo sd dtb.img loaded; fi;wipeisb; bootm ${loadaddr};fi;]
[recovery_from_udisk]: [setenv bootargs ${bootargs} aml_dt=${aml_dt} recovery_part={recovery_part} recovery_offset={recovery_offset};if fatload usb 0 ${loadaddr} aml_autoscript; then autoscr ${loadaddr}; fi;if fatload usb 0 ${loadaddr} recovery.img; then if fatload usb 0 ${dtb_mem_addr} dtb.img; then echo udisk dtb.img loaded; fi;wipeisb; bootm ${loadaddr};fi;]
[recovery_offset]: [0]
[recovery_part]: [recovery]
[sdc_burning]: [sdc_burn ${sdcburncfg}]
[sdcburncfg]: [aml_sdc_burn.ini]
[serverip]: [10.18.9.113]
[storeargs]: [setenv bootargs ${initargs} androidboot.selinux=${EnableSelinux} logo=${display_layer},loaded,${fb_addr},${outputmode} maxcpus=${maxcpus} vout=${outputmode},enable hdmimode=${hdmimode} cvbsmode=${cvbsmode} hdmitx=${cecconfig} ddr_size=${ddr_size} cvbsdrv=${cvbs_drv} pq=${pq} androidboot.firstboot=${firstboot} jtag=${jtag}; setenv bootargs ${bootargs} androidboot.hardware=amlogic;run cmdline_keys;setenv bootargs ${bootargs} androidboot.slot_suffix=${active_slot};]
[storeboot]: [if imgread kernel ${boot_part} ${loadaddr}; then bootm ${loadaddr}; fi;run update;]
[switch_bootmode]: [get_rebootmode;if test ${reboot_mode} = factory_reset; then run recovery_from_flash;else if test ${reboot_mode} = update; then run update;else if test ${reboot_mode} = cold_boot; then else if test ${reboot_mode} = fastboot; then fastboot;fi;fi;fi;fi;]
[try_auto_burn]: [update 700 750;]
[update]: [run usb_burning; run sdc_burning; if mmcinfo; then run recovery_from_sdcard;fi;if usb start 0; then run recovery_from_udisk;fi;run recovery_from_flash;]
[upgrade_check]: [echo upgrade_step=${upgrade_step}; if itest ${upgrade_step} == 3; then run init_display; run storeargs; run update;else fi;]
[upgrade_key]: [if gpio input GPIOAO_2; then echo detect upgrade key; sleep 3;if gpio input GPIOAO_2; then run update; fi;fi;]
[upgrade_step]: [2]
[usb_burning]: [update 1000]
[vim2_check]: [saradc open 1;if saradc get_in_range 0x1a0 0x220; then echo Product checking: pass!;else if saradc get_in_range 0x0 0x1cf; then echo Product checking: fail!; sleep 5; reboot;fi;fi;]
[wipe_cache]: [successful]
[wipe_data]: [successful]
[wol_init]: [kbi powerstate;kbi trigger wol r;setenv bootargs ${bootargs} wol_enable=${wol_enable};if test ${power_state} = 1; then kbi trigger wol w 1;gpio set GPIODV_2;fi;]
[576i_x]: [0]
[576i_y]: [0]
[576i_w]: [720]
[576i_h]: [576]
[1080p60hz_deepcolor]: [rgb,8bit]
[colorattribute]: [rgb,8bit]
[1080p_x]: [0]
[1080p_y]: [0]
[1080p_w]: [1920]
[1080p_h]: [1080]
[is.bestmode]: [false]
[1024x768p60hz_deepcolor]: [444,8bit]
[1024x768p60hz_x]: [0]
[1024x768p60hz_y]: [0]
[1024x768p60hz_w]: [1366]
[1024x768p60hz_h]: [768]
[1024x600p60hz_deepcolor]: [rgb,8bit]
[1024x600p60hz_x]: [0]
[1024x600p60hz_y]: [0]
[1024x600p60hz_w]: [1024]
[1024x600p60hz_h]: [600]
[1080p50hz_deepcolor]: [rgb,8bit]
[800x480p60hz_deepcolor]: [444,8bit]
[800x480p60hz_x]: [0]
[800x480p60hz_y]: [0]
[800x480p60hz_w]: [800]
[800x480p60hz_h]: [480]
1 Like
Hello! I’m testing DaveMF firmware too.
On this firmware, after ~20 minutes, if I click on “home” or “multitasking” virtual button -
all the sound in the system disappears.
It only helps reboot the console.
In previous firmware - everything is ok.
I’m use hdmi is sound output.
Resolution is 720p60.
This my dmesg log -> https://yadi.sk/i/MCR7rka73TkR9N
after I face this challenge
1 Like
@davemf @Alonso_BV
You need to modify the kernel driver.
diff --git a/drivers/amlogic/display/vout/vinfo.c b/drivers/amlogic/display/vout/vinfo.c
index d256e06..033aa378 100644
--- a/drivers/amlogic/display/vout/vinfo.c
+++ b/drivers/amlogic/display/vout/vinfo.c
@@ -132,7 +132,7 @@ enum vmode_e vmode_name_to_mode(const char *str)
enum vmode_e vmode = VMODE_MAX;
for (i = 0; i < ARRAY_SIZE(vmode_match_table); i++) {
- if (strstr(str, vmode_match_table[i].name)) {
+ if (!strncmp(str, vmode_match_table[i].name,strlen(vmode_match_table[i].name))) {
vmode = vmode_match_table[i].mode;
break;
}
(END)
2 Likes
Thank you, terry!
Is it for VIM2 only?
I think these modifications can be apply to VIM2 as well as VIM.
But you said the VIM work well even it hasn’t apply these patch. 
--- a/drivers/amlogic/display/osd/osd_fb.c
+++ b/drivers/amlogic/display/osd/osd_fb.c
@@ -2581,12 +2581,10 @@ static int osd_probe(struct platform_device *pdev)
if (ret)
osd_log_info("not found display_size_default\n");
else {
- fb_def_var[index].xres = var_screeninfo[0];
- fb_def_var[index].yres = var_screeninfo[1];
- fb_def_var[index].xres_virtual =
- var_screeninfo[2];
- fb_def_var[index].yres_virtual =
- var_screeninfo[3];
+ fb_def_var[index].xres = vinfo->width;
+ fb_def_var[index].yres = vinfo->height;
+ fb_def_var[index].xres_virtual = vinfo->width;
+ fb_def_var[index].yres_virtual = vinfo->height*3;
fb_def_var[index].bits_per_pixel =
var_screeninfo[4];
osd_log_info("init fbdev bpp is:%d\n",
diff --git a/drivers/amlogic/display/vout/vinfo.c b/drivers/amlogic/display/vout/vinfo.c
index d256e06..033aa378 100644
--- a/drivers/amlogic/display/vout/vinfo.c
+++ b/drivers/amlogic/display/vout/vinfo.c
@@ -132,7 +132,7 @@ enum vmode_e vmode_name_to_mode(const char *str)
enum vmode_e vmode = VMODE_MAX;
for (i = 0; i < ARRAY_SIZE(vmode_match_table); i++) {
- if (strstr(str, vmode_match_table[i].name)) {
+ if (!strncmp(str, vmode_match_table[i].name,strlen(vmode_match_table[i].name))) {
vmode = vmode_match_table[i].mode;
break;
}
(END)
2 Likes
I shall test it on VIM1 too.
I tested the last fix.
Yes, it does work!!! But VIM1 work is fine without this fix 
I also tested 1024*600 on VIM2 with last fix, and it has bug - green screel as wrote Albert
But VIM1 work fine and it has not green screen!!! 
1 Like
Hello, Terri!
One problem is solved and the image no longer collapses … But another problem has emerged in 800x480: the image is stretched horizontally by the edges of the screen, and if 100% is set in the screen settings, then the picture is aligned, but a black inactive region appears on the right side.
C:\ADB>adb connect 192.168.0.106
- daemon not running. starting it now on port 5037 *
- daemon started successfully *
connected to 192.168.0.106:5555C:\ADB>adb devices
List of devices attached
192.168.0.106:5555 deviceC:\ADB>adb shell
kvim2:/ $ su
kvim2:/ # cat /sys/class/display
tmp-mksh: cat: /sys/class/display: Is a directory
1|kvim2:/ # wm size
Physical size: 800x480
kvim2:/ # fbsetmode “800x480-0”
# D: 0.000 MHz, H: 0.000 kHz, V: 0.000 Hz
geometry 800 480 800 1440 32
timings 0 0 0 0 0 0 85
accel false
rgba 8/0,8/8,8/16,8/24
endmodekvim2:/ # getbootenv
[EnableSelinux]: [permissive]
[active_slot]: [_a]
[baudrate]: [115200]
[bcb_cmd]: [get_valid_slot;]
[boot_part]: [boot]
[bootcmd]: [run storeboot]
[bootdelay]: [1]
[cmdline_keys]: [if keyman init 0x1234; then if keyman read usid ${loadaddr} str
; then setenv bootargs ${bootargs} androidboot.serialno=${usid};setenv serial ${
usid};fi;kbi ethmac;setenv bootargs ${bootargs} mac=${eth_mac} androidboot.mac=$
{eth_mac};if keyman read deviceid ${loadaddr} str; then setenv bootargs ${bootar
gs} androidboot.deviceid=${deviceid};fi;fi;]
[combine_key]: [saradc open 0;if saradc get_in_range 0x0 0x1f; then echo Detect
function key;if gpio input GPIOAO_2; then echo Detect combine keys;store init 3;
fi;fi;]
[cvbs_drv]: [0]
[cvbsmode]: [576cvbs]
[display_bpp]: [16]
[display_color_bg]: [0]
[display_color_fg]: [0xffff]
[display_color_index]: [16]
[display_height]: [1080]
[display_layer]: [osd1]
[display_width]: [1920]
[dtb_mem_addr]: [0x1000000]
[ethaddr]: [00:15:18:01:81:31]
[factory_reset_poweroff_protect]: [echo wipe_data=${wipe_data}; echo wipe_cache=
${wipe_cache};if test ${wipe_data} = failed; then run init_display; run storearg
s;if mmcinfo; then run recovery_from_sdcard;fi;if usb start 0; then run recovery
from_udisk;fi;run recovery_from_flash;fi; if test ${wipe_cache} = failed; then
run init_display; run storeargs;if mmcinfo; then run recovery_from_sdcard;fi;if
usb start 0; then run recovery_from_udisk;fi;run recovery_from_flash;fi; ]
[fb_addr]: [0x3d800000]
[fb_height]: [1080]
[fb_width]: [1920]
[fdt_high]: [0x20000000]
[firstboot]: [0]
[gatewayip]: [10.18.9.1]
[hdmimode]: [800x480p60hz]
[hostname]: [arm_gxbb]
[init_display]: [osd open;osd clear;imgread pic logo bootup $loadaddr;bmp displa
y $bootup_offset;bmp scale]
[initargs]: [rootfstype=ramfs init=/init console=ttyS0,115200 no_console_suspend
earlyprintk=aml-uart,0xc81004c0 ramoops.pstore_en=1 ramoops.record_size=0x8000
ramoops.console_size=0x4000 ]
[ipaddr]: [10.18.9.97]
[jtag]: [disable]
[loadaddr]: [1080000]
[netmask]: [255.255.255.0]
[outputmode]: [800x480p60hz]
[preboot]: [run bcb_cmd; run factory_reset_poweroff_protect;run upgrade_check;ru
n init_display;run storeargs;run combine_key;run upgrade_key;run vim2_check;run
wol_init;forceupdate;run switch_bootmode;]
[recovery_from_flash]: [setenv bootargs ${bootargs} aml_dt=${aml_dt} recovery_pa
rt={recovery_part} recovery_offset={recovery_offset};if itest ${upgrade_step} ==
3; then if ext4load mmc 1:2 ${dtb_mem_addr} /recovery/dtb.img; then echo cache
dtb.img loaded; fi;if ext4load mmc 1:2 ${loadaddr} /recovery/recovery.img; then
echo cache recovery.img loaded; wipeisb; bootm ${loadaddr}; fi;else fi;if imgrea
d kernel ${recovery_part} ${loadaddr} ${recovery_offset}; then wipeisb; bootm ${
loadaddr}; fi;]
[recovery_from_sdcard]: [setenv bootargs ${bootargs} aml_dt=${aml_dt} recovery_p
art={recovery_part} recovery_offset={recovery_offset};if fatload mmc 0 ${loadadd
r} aml_autoscript; then autoscr ${loadaddr}; fi;if fatload mmc 0 ${loadaddr} rec
overy.img; then if fatload mmc 0 ${dtb_mem_addr} dtb.img; then echo sd dtb.img l
oaded; fi;wipeisb; bootm ${loadaddr};fi;]
[recovery_from_udisk]: [setenv bootargs ${bootargs} aml_dt=${aml_dt} recovery_pa
rt={recovery_part} recovery_offset={recovery_offset};if fatload usb 0 ${loadaddr
} aml_autoscript; then autoscr ${loadaddr}; fi;if fatload usb 0 ${loadaddr} reco
very.img; then if fatload usb 0 ${dtb_mem_addr} dtb.img; then echo udisk dtb.img
loaded; fi;wipeisb; bootm ${loadaddr};fi;]
[recovery_offset]: [0]
[recovery_part]: [recovery]
[sdc_burning]: [sdc_burn ${sdcburncfg}]
[sdcburncfg]: [aml_sdc_burn.ini]
[serverip]: [10.18.9.113]
[storeargs]: [setenv bootargs ${initargs} androidboot.selinux=${EnableSelinux} l
ogo=${display_layer},loaded,${fb_addr},${outputmode} maxcpus=${maxcpus} vout=${o
utputmode},enable hdmimode=${hdmimode} cvbsmode=${cvbsmode} hdmitx=${cecconfig}
ddr_size=${ddr_size} cvbsdrv=${cvbs_drv} pq=${pq} androidboot.firstboot=${first
boot} jtag=${jtag}; setenv bootargs ${bootargs} androidboot.hardware=amlogic;run
cmdline_keys;setenv bootargs ${bootargs} androidboot.slot_suffix=${active_slot}
;]
[storeboot]: [if imgread kernel ${boot_part} ${loadaddr}; then bootm ${loadaddr}
; fi;run update;]
[switch_bootmode]: [get_rebootmode;if test ${reboot_mode} = factory_reset; then
run recovery_from_flash;else if test ${reboot_mode} = update; then run update;el
se if test ${reboot_mode} = cold_boot; then else if test ${reboot_mode} = fastbo
ot; then fastboot;fi;fi;fi;fi;]
[try_auto_burn]: [update 700 750;]
[update]: [run usb_burning; run sdc_burning; if mmcinfo; then run recovery_from
sdcard;fi;if usb start 0; then run recovery_from_udisk;fi;run recovery_from_flas
h;]
[upgrade_check]: [echo upgrade_step=${upgrade_step}; if itest ${upgrade_step} ==
3; then run init_display; run storeargs; run update;else fi;]
[upgrade_key]: [if gpio input GPIOAO_2; then echo detect upgrade key; sleep 3;if
gpio input GPIOAO_2; then run update; fi;fi;]
[upgrade_step]: [2]
[usb_burning]: [update 1000]
[vim2_check]: [saradc open 1;if saradc get_in_range 0x1a0 0x220; then echo Produ
ct checking: pass!;else if saradc get_in_range 0x0 0x1cf; then echo Product chec
king: fail!; sleep 5; reboot;fi;fi;]
[wipe_cache]: [successful]
[wipe_data]: [successful]
[wol_init]: [kbi powerstate;kbi trigger wol r;setenv bootargs ${bootargs} wol_en
able=${wol_enable};if test ${power_state} = 1; then kbi trigger wol w 1;gpio set
GPIODV_2;fi;]
[1080p60hz_deepcolor]: [rgb,8bit]
[colorattribute]: [444,8bit]
[1080p_x]: [0]
[1080p_y]: [0]
[1080p_w]: [1920]
[1080p_h]: [1080]
[is.bestmode]: [false]
[800x480p60hz_deepcolor]: [444,8bit]
[800x480p60hz_x]: [0]
[800x480p60hz_y]: [0]
[800x480p60hz_w]: [720]
[800x480p60hz_h]: [480]
[1024x600p60hz_deepcolor]: [rgb,8bit]
[1024x600p60hz_x]: [0]
[1024x600p60hz_y]: [0]
[1024x600p60hz_w]: [1024]
[1024x600p60hz_h]: [600]
[1080i60hz_deepcolor]: [rgb,8bit]
[1080i_x]: [0]
[1080i_y]: [0]
[1080i_w]: [1920]
[1080i_h]: [1080]
kvim2:/ #
Thanks, best regards, Alex/
1 Like
on davemf firmware after “cold start” i seen this
after reboot - everything is ok…
when the problem is observed, did dmesg, it’s here
Sorry, davemf.
About the green screen bug for 1024x768 and 1024x600 hdmi output, I haven’t any idea for it now.
And I will put this into my work list but need some times to fix it.
2 Likes
Hi, terry!
I use 1280*800 resolution, it work fine.
In addition to the bugs above, there is another…
Cold start - when the computer is turned off for more than some hours.
The screen resolution is set arbitrarily after the cold start. After rebooting, it returns to the previously selected resolution.
Also this happens if you turn khadas without monitor.
Can you provide some informations for me? Thanks
# adb shell
# cat /sys/class/display/mode
# wm size
# fbset
# getbootenv
# logcat
# dmesg
Hello, terry!
These are my logs (result of all commands in one file) with adb, when image on the screen seen like this.
another time, with the same image on the screen, the output of fbset was different (but, fbset is same when the image on the screen is correct):
kvim2:/ # fbset
fbset
mode “1280x720-0”
# D: 0.000 MHz, H: 0.000 kHz, V: 0.000 Hz
geometry 1280 720 1280 2160 32
timings 0 0 0 0 0 0 0
accel false
rgba 8/0,8/8,8/16,8/24
endmode
1 Like