Screen Resolution with preinstalled Android

You should be able to change the resolution in u-boot mode passing the following arguments:

  MX6Solo RIOT U-Boot > setenv bootargs console=ttymxc1,115200 init=/init nosmp video=mxcfb0:dev=hdmi,1280x720M@60,bpp=32

video=mxcfb1:off fbmem=10M vmalloc=400M androidboot.console=ttymxc1 androidboot.hardware=freescale

MX6Solo RIOT U-Boot > saveenv

Great, now I'm worse off than before!  What were the settings before I tried the above? With the above settings neither of the  three small (less than 40") HD TVs I have at my disposal will resolve the settings and my HDMI equipped HP computer monitor isn't happy with them either. My monitor suggests 1920x1280 at 60Hz.  I don't think the Riot board will go that high.   I tried editing the settings "shotgun" style to see what works with my gear. The best I could come up with is a 24 Hz setting, but it was real laggy. Could you give me the line that will restore it to what I had?  Or even better give me more possible HD resolution settings to try. What settings are used in the video for the 2 part Android Programming tutorial?

Here's the original settings:

Which appear to be the same as written above, so not sure why that would make things worse.

What's the command line that generated the above output?  I'll try mine and see if these are my settings.  Prior to me loading the "correct" settings, my Riot Board was booting into the 640x480 mode the same as kas671 was talking about.  I loaded the settings that vandana suggested and none of my monitors would resolve it. I think I eventually got a resolution that would show by by changing @60 to either 24 or 30 ( I can't remember which).  It still didn't display a full HD desktop, and the screen flashes.

Connect to the terminal via J18, hit a key to stop the boot process, and at the U-boot prompt type "print". It's about in the middle of all the stuff that will scroll past.

My print out is identical. Is there a chance we were sent different Android revs?  My info is:

3.0.35-06429-g55e239f

android@embest-tech#3

Fri Dec 20 10:31:44 CST 2013

I also notices in the videos, their lock screen wallpaper (besides being 1280x720 res) is a different image.

Here is my DeBug cosole output on boot.  Can anyone look at this and see why I can't get hdmi resolution?

Hit any key to stop autoboot:  3  2  1  0

kernel   @ 10808000 (4738952)

ramdisk  @ 11800000 (233818)

kernel cmdline:

use uboot command line:

console=ttymxc1,115200 init=/init nosmp

video=mxcfb0:dev=hdmi,1280x720M@60,bpp=32 video=mxcfb1:off

fbmem=10M vmalloc=400M androidboot.console=ttymxc1 androidboot.hardware=freescale

Starting kernel ...

Initializing cgroup subsys cpu

Linux version 3.0.35-06429-g55e239f (android@embest-tech) (gcc

version 4.6.x-google 20120106 (prerelease) (GCC) ) #3 SMP

PREEMPT Fri Dec 20 10:31:44 CST 2013

CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c53c7d

CPU: VIPT nonaliasing data cache, VIPT aliasing instruction

cache

Machine: Freescale i.MX 6Solo RIOT Board

Ignoring unrecognised tag 0x54410008

Memory policy: ECC disabled, Data cache writealloc

CPU identified as i.MX6DL/SOLO, silicon rev 1.1

PERCPU: Embedded 7 pages/cpu @c1307000 s6592 r8192 d13888 u32768

Built 1 zonelists in Zone order, mobility grouping on.

Total pages: 208128

Kernel command line: console=ttymxc1,115200 init=/init nosmp video=mxcfb0:dev=hdmi,1280x720M@60,bpp=32

video=mxcfb1:off fbmem=10M vmalloc=400M androidboot.console=ttymxc1 androidboot.hardware=freescale

PID hash table entries: 2048 (order: 1, 8192 bytes)

Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)

Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)

Memory: 767MB 54MB = 821MB total

Memory: 820560k/820560k available, 228016k reserved, 431104K highmem

Virtual kernel memory layout:

    vector  : 0xffff0000 - 0xffff1000   (   4 kB)

    fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)

    DMA     : 0xfbe00000 - 0xffe00000   (  64 MB)

    vmalloc : 0xd9800000 - 0xf2000000   ( 392 MB)

    lowmem  : 0xc0000000 - 0xd9000000   ( 400 MB)

    pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)

    modules : 0xbf000000 - 0xbfe00000   (  14 MB)

      .init : 0xc0008000 - 0xc0046000   ( 248 kB)

      .text : 0xc0046000 - 0xc08d3f94   (8760 kB)

      .data : 0xc08d4000 - 0xc0975de0   ( 648 kB)

       .bss : 0xc0975e04 - 0xc0afdb48   (1568 kB)

Preemptible hierarchical RCU implementation.

NR_IRQS:624

MXC GPIO hardware

sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every 1431655ms

Set periph_clk's parent to pll2_pfd_400M!

arm_max_freq=1GHz

MXC_Early serial console at MMIO 0x21e8000 (options '115200')

bootconsole [ttymxc1] enabled

Calibrating delay loop... 1581.05 BogoMIPS (lpj=7905280)

pid_max: default: 32768 minimum: 301

Mount-cache hash table entries: 512

Initializing cgroup subsys debug

Initializing cgroup subsys cpuacct

Initializing cgroup subsys freezer

CPU: Testing write buffer coherency: ok

hw perfevents: enabled with ARMv7 Cortex-A9 PMU driver, 7 counters available

Brought up 1 CPUs

SMP: Total of 1 processors activated (1581.05 BogoMIPS).

print_constraints: dummy:

NET: Registered protocol family 16

print_constraints: vddpu: 725 <--> 1300 mV at 700 mV fast normal

print_constraints: vddcore: 725 <--> 1300 mV at 1150 mV fast normal

print_constraints: vddsoc: 725 <--> 1300 mV at 1200 mV fast normal

print_constraints: vdd2p5: 2000 <--> 2775 mV at 2400 mV fast normal

print_constraints: vdd1p1: 800 <--> 1400 mV at 1100 mV fast normal

print_constraints: vdd3p0: 2625 <--> 3400 mV at 3000 mV fast normal

ram_console: got buffer at 3ff00000, size 100000

ram_console: found existing buffer, size 17318, start 17318

console [ram-1] enabled

----ldb_init

hw-breakpoint: found 6 breakpoint and 1 watchpoint registers.

hw-breakpoint: 1 breakpoint(s) reserved for watchpoint single-step.

hw-breakpoint: maximum watchpoint size is 4 bytes.

L310 cache controller enabled

l2x0: 16 ways, CACHE_ID 0x410000c8, AUX_CTRL 0x32050000, Cache size: 524288 B

bio: create slab <bio-0> at 0

mxs-dma mxs-dma-apbh: initialized

print_constraints: VDDA: 2500 mV

print_constraints: VDDIO: 3300 mV

machine_constraints_voltage: VDDD: unsupportable voltage constraints

reg-fixed-voltage reg-fixed-voltage.2: Failed to register regulator: -22

reg-fixed-voltage: probe of reg-fixed-voltage.2 failed with error -22

print_constraints: vmmc: 3300 mV

vgaarb: loaded

SCSI subsystem initialized

spi_imx imx6q-ecspi.0: probed

usbcore: registered new interface driver usbfs

usbcore: registered new interface driver hub

usbcore: registered new device driver usb

Freescale USB OTG Driver loaded, $Revision: 1.55 $

mc_pfuze 1-0008: recv failed!:-5,0

mc_pfuze: probe of 1-0008 failed with error -1

imx-ipuv3 imx-ipuv3.0: IPU DMFC NORMAL mode: 1(0~1), 5B(4,5), 5F(6,7)

mxc_mipi_csi2 mxc_mipi_csi2: i.MX MIPI CSI2 driver probed

mxc_mipi_csi2 mxc_mipi_csi2: i.MX MIPI CSI2 dphy version is 0x3130302a

MIPI CSI2 driver module loaded

Advanced Linux Sound Architecture Driver Version 1.0.24.

Bluetooth: Core ver 2.16

NET: Registered protocol family 31

Bluetooth: HCI device and connection manager initialized

Bluetooth: HCI socket layer initialized

Bluetooth: L2CAP socket layer initialized

Bluetooth: SCO socket layer initialized

i2c-core: driver [max17135] using legacy suspend method

i2c-core: driver [max17135] using legacy resume method

Switching to clocksource mxc_timer1

NET: Registered protocol family 2

IP route cache hash table entries: 16384 (order: 4, 65536 bytes)

TCP established hash table entries: 65536 (order: 7, 524288 bytes)

TCP bind hash table entries: 65536 (order: 7, 786432 bytes)

TCP: Hash tables configured (established 65536 bind 65536)

TCP reno registered

UDP hash table entries: 256 (order: 1, 8192 bytes)

UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)

NET: Registered protocol family 1

RPC: Registered named UNIX socket transport module.

RPC: Registered udp transport module.

RPC: Registered tcp transport module.

RPC: Registered tcp NFSv4.1 backchannel transport module.

PCI: CLS 0 bytes, default 32

Unpacking initramfs...

Freeing initrd memory: 228K

PMU: registered new PMU device of type 0

Static Power Management for Freescale i.MX6

wait mode is enabled for i.MX6

cpaddr = d9820000 suspend_iram_base=d98b8000

PM driver module loaded

IMX usb wakeup probe

the wakeup pdata is 0xd63fbb20

add wake up source irq 75

IMX usb wakeup probe

the wakeup pdata is 0xd63fb8e0

cpu regulator mode:ldo_enable

i.MXC CPU frequency driver

highmem bounce pool size: 64 pages

ashmem: initialized

NTFS driver 2.1.30 [Flags: R/O].

JFFS2 version 2.2. (NAND) Â 2001-2006 Red Hat, Inc.

fuse init (API version 7.16)

msgmni has been set to 761

NET: Registered protocol family 38

cryptodev: driver loaded.

io scheduler noop registered

io scheduler deadline registered

io scheduler cfq registered (default)

mxc_mipi_dsi mxc_mipi_dsi: i.MX MIPI DSI driver probed

MIPI DSI driver module loaded

mxc_sdc_fb mxc_sdc_fb.0: register mxc display driver hdmi

mxc_hdmi mxc_hdmi: Detected HDMI controller 0x13:0x1a:0xa0:0xc1

fbcvt: 1280x720@60: CVT Name - .921M9

imx-ipuv3 imx-ipuv3.0: IPU DMFC DP HIGH RESOLUTION: 1(0,1), 5B(2~5), 5F(6,7)

mxc_sdc_fb mxc_sdc_fb.1: Can't get fb option for mxcfb1!

imx-sdma imx-sdma: loaded firmware 1.1

imx-sdma imx-sdma: initialized

fbcvt: 1280x720@60: CVT Name - .921M9

Serial: IMX driver

imx-uart.2: ttymxc2 at MMIO 0x21ec000 (irq = 60) is a IMX

imx-uart.1: ttymxc1 at MMIO 0x21e8000 (irq = 59) is a IMX

console [ttymxc1] enabled, bootconsole disabled

console [ttymxc1] enabled, bootconsole disabled

imx-uart.0: ttymxc0 at MMIO 0x2020000 (irq = 58) is a IMX

loop: module loaded

m25p80 spi0.0: unrecognized JEDEC id ffffff

GPMI NAND driver registered. (IMX)

vcan: Virtual CAN interface driver

CAN device driver interface

flexcan netdevice driver

FEC Ethernet Driver

fec_enet_mii_bus: probed

PPP generic driver version 2.4.2

PPP Deflate Compression module registered

PPP BSD Compression module registered

PPP MPPE Compression module registered

NET: Registered protocol family 24

PPTP driver version 0.8.5

tun: Universal TUN/TAP device driver, 1.6

tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>

ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver

fsl-ehci fsl-ehci.0: Freescale On-Chip EHCI Host Controller

fsl-ehci fsl-ehci.0: new USB bus registered, assigned bus number 1

fsl-ehci fsl-ehci.0: irq 75, io base 0x02184000

fsl-ehci fsl-ehci.0: USB 2.0 started, EHCI 1.00

hub 1-0:1.0: USB hub found

hub 1-0:1.0: 1 port detected

add wake up source irq 72

fsl-ehci fsl-ehci.1: Freescale On-Chip EHCI Host Controller

fsl-ehci fsl-ehci.1: new USB bus registered, assigned bus number 2

fsl-ehci fsl-ehci.1: irq 72, io base 0x02184200

fsl-ehci fsl-ehci.1: USB 2.0 started, EHCI 1.00

hub 2-0:1.0: USB hub found

hub 2-0:1.0: 1 port detected

usbcore: registered new interface driver cdc_acm

cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters

Initializing USB Mass Storage driver...

usbcore: registered new interface driver usb-storage

USB Mass Storage support registered.

usbcore: registered new interface driver usbserial

usbserial: USB Serial Driver core

USB Serial support registered for GSM modem (1-port)

usbcore: registered new interface driver option

option: v0.7.2:USB Driver for GSM modems

USB Serial support registered for Qualcomm USB modem

usbcore: registered new interface driver qcserial

ARC USBOTG Device Controller driver (1 August 2005)

android_usb gadget: Mass Storage Function, version: 2009/09/11

android_usb gadget: Number of LUNs=1

lun0: LUN: removable file: (no medium)

Gadget Android: controller 'fsl-usb2-udc' not recognized

android_usb gadget: android_usb ready

Suspend udc for OTG auto detect

USB Host suspend begins

will suspend roothub and its children

ehci_fsl_bus_suspend begins, DR

ehci_fsl_bus_suspend ends, DR

host suspend ends

USB Gadget resume begins

fsl_udc_resume, Wait for wakeup thread finishes

dr_controller_run: udc enter low power mode

USB Gadget resume ends

fsl-usb2-udc: bind to driver android_usb

mousedev: PS/2 mouse device common for all mice

generic touchscreen driver, <@>.

usb 2-1: new high speed USB device number 2 using fsl-ehci

hub 2-1:1.0: USB hub found

hub 2-1:1.0: 4 ports detected

usb 2-1.2: new low speed USB device number 3 using fsl-ehci

USB Gadget resume begins

fsl_udc_resume, Wait for wakeup thread finishes

usb 2-1.4: new low speed USB device number 4 using fsl-ehci

>>>>> ct365_get_vendor() called <<<<<

Chip ID: 0x0

Chip data allocation failed: 0x0

i2c-core: driver [generic_ts] using legacy suspend method

i2c-core: driver [generic_ts] using legacy resume method

i2c-core: driver [isl29023] using legacy suspend method

i2c-core: driver [isl29023] using legacy resume method

using rtc device, snvs_rtc, for alarms

snvs_rtc snvs_rtc.0: rtc core: registered snvs_rtc as rtc0

i2c /dev entries driver

Linux video capture interface: v2.00

mxc_v4l2_output mxc_v4l2_output.0: V4L2 device registered as video16

mxc_v4l2_output mxc_v4l2_output.0: V4L2 device registered as video17

usbcore: registered new interface driver uvcvideo

USB Video Class driver (v1.1.0)

i2c-core: driver [mag3110] using legacy suspend method

i2c-core: driver [mag3110] using legacy resume method

imx2-wdt imx2-wdt.0: IMX2+ Watchdog Timer enabled. timeout=60s (nowayout=1)

device-mapper: uevent: version 1.0.3

device-mapper: ioctl: 4.20.0-ioctl (2011-02-02) initialised: dm-devel@redhat.com

Bluetooth: Virtual HCI driver ver 1.3

Bluetooth: HCI UART driver ver 2.2

Bluetooth: HCIATH3K protocol initialized

Bluetooth: Generic Bluetooth USB driver ver 0.6

usbcore: registered new interface driver btusb

sdhci: Secure Digital Host Controller Interface driver

sdhci: Copyright(c) Pierre Ossman

mmc0: SDHCI controller on platform [sdhci-esdhc-imx.3] using ADMA

mmc1: SDHCI controller on platform [sdhci-esdhc-imx.2] using ADMA

mmc2: SDHCI controller on platform [sdhci-esdhc-imx.1] using ADMA

mxc_vdoa mxc_vdoa: i.MX Video Data Order Adapter(VDOA) driver probed

VPU initialized

mxc_asrc registered

Galcore version 4.6.9.6622

revserved_memory_account:viv_gpu registerd

Thermal calibration data is 0x5955185f

Thermal sensor with ratio = 185

Anatop Thermal registered as thermal_zone0

anatop_thermal_probe: default cooling device is cpufreq!

Registered led device: sys_led

Registered led device: user_led

input: Dell Dell QuietKey Keyboard as /devices/platform/fsl-ehci.1/usb2/2-1/2-1.2/2-1.2:1.0/input/input0

generic-usb 0003:413C:2106.0001: input,hidraw0: USB HID v1.10 Keyboard [Dell Dell QuietKey Keyboard] on usb-fsl-ehci.1-1.2/input0

mmc0: new high speed DDR MMC card at address 0001

input: USB Optical Mouse as /devices/platform/fsl-ehci.1/usb2/2-1/2-1.4/2-1.4:1.0/input/input1

generic-usb 0003:0461:4DFB.0002: input,hidraw1: USB HID v1.11 Mouse [USB Optical Mouse] on usb-fsl-ehci.1-1.4/input0

mmcblk0: mmc0:0001 MMC04G 3.57 GiB

mmcblk0boot0: mmc0:0001 MMC04G partition 1 2.00 MiB

usbcore: registered new interface driver usbhid

usbhid: USB HID core driver

mmcblk0boot1: mmc0:0001 MMC04G partition 2 2.00 MiB

logger: created 256K log 'log_main'

logger: created 256K log 'log_events'

logger: created 256K log 'log_radio'

logger: created 256K log 'log_system'

mmcblk0: p1 p2 p3 < p5 p6 p7 p8 > p4

mmcblk0: p4 size 5324800 extends beyond EOD, truncated

usbcore: registered new interface driver snd-usb-audio

mxc_hdmi_soc mxc_hdmi_soc.0: MXC HDMI Audio

Cirrus Logic CS42888 ALSA SoC Codec Driver

i2c-core: driver [cs42888] using legacy suspend method

i2c-core: driver [cs42888] using legacy resume method

mmcblk0boot1: unknown partition table

mmcblk0boot0: unknown partition table

----sab_sgtl5000_init

----enable clko_clk.

sgtl5000 0-000a: Failed to get supply 'VDDD': -19

print_constraints: 0-000a: 850 <--> 1600 mV at 1200 mV normal

sgtl5000 0-000a: sgtl5000 revision 17

asoc: sgtl5000 <-> imx-ssi.1 mapping ok

imx_3stack asoc driver

asoc: mxc-hdmi-soc <-> imx-hdmi-soc-dai.0 mapping ok

ALSA device list:

  #0: sgtl5000-audio

  #1: imx-hdmi-soc

oprofile: using arm/armv7-ca9

GACT probability NOT on

Mirror/redirect action on

u32 classifier

    Actions configured

Netfilter messages via NETLINK v0.30.

nf_conntrack version 0.5.0 (12824 buckets, 51296 max)

ctnetlink v0.93: registering with nfnetlink.

NF_TPROXY: Transparent proxy support initialized, version 4.1.0

NF_TPROXY: Copyright (c) 2006-2007 BalaBit IT Ltd.

xt_time: kernel timezone is -0000

IPv4 over IPv4 tunneling driver

GRE over IPv4 demultiplexor driver

ip_tables: (C) 2000-2006 Netfilter Core Team

arp_tables: (C) 2002 David S. Miller

TCP cubic registered

NET: Registered protocol family 10

Mobile IPv6

ip6_tables: (C) 2000-2006 Netfilter Core Team

IPv6 over IPv4 tunneling driver

NET: Registered protocol family 17

NET: Registered protocol family 15

can: controller area network core (rev 20090105 abi 8)

NET: Registered protocol family 29

can: raw protocol (rev 20090105)

can: broadcast manager protocol (rev 20090105 t)

Bluetooth: RFCOMM TTY layer initialized

Bluetooth: RFCOMM socket layer initialized

Bluetooth: RFCOMM ver 1.11

Bluetooth: BNEP (Ethernet Emulation) ver 1.3

Bluetooth: BNEP filters: protocol multicast

Bluetooth: HIDP (Human Interface Emulation) ver 1.2

L2TP core driver, V2.0

PPPoL2TP kernel driver, V2.0

L2TP IP encapsulation support (L2TPv3)

L2TP netlink interface

L2TP ethernet pseudowire support (L2TPv3)

lib80211: common routines for IEEE802.11 drivers

lib80211_crypt: registered algorithm 'NULL'

lib80211_crypt: registered algorithm 'WEP'

lib80211_crypt: registered algorithm 'CCMP'

lib80211_crypt: registered algorithm 'TKIP'

VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4

Bus freq driver module loaded

Bus freq driver Enabled

mxc_dvfs_core_probe

DVFS driver module loaded

snvs_rtc snvs_rtc.0: setting system clock to 2014-02-22 15:54:40 UTC (1393084480)

Freeing init memory: 248K

android_usb: already disabled

mtp_bind_config

root@riot_6solo:/ # ERROR: v4l2 capture: slave not found!

ERROR: v4l2 capture: slave not found!

ERROR: v4l2 capture: slave not found!

ERROR: v4l2 capture: slave not found!

ERROR: v4l2 capture: slave not found!

ERROR: v4l2 capture: slave not found!

ERROR: v4l2 capture: slave not found!

ERROR: v4l2 capture: slave not found!

warning: `zygote' uses 32-bit capabilities (legacy support in use)

request_suspend_state: wakeup (3->0) at 14205317670 (2014-02-22 15:54:51.068988335 UTC)

eth0: Freescale FEC PHY driver [Generic PHY] (mii_bus:phy_addr=1:04, irq=-1)

ADDRCONF(NETDEV_UP): eth0: link is not ready

acc_open

acc_release

ehci_fsl_bus_resume begins, DR

init: sys_prop: permission denied uid:1003 

name:service.bootanim.exit

My Lock Screen Wallpaper was also different. I get full 1080 though on Samsung monitor out of the box. Does anyone know how to use the HDMI and tell it to use the Audio Jack out for sound?

After playing around with this some more, I haven't yet found a solution but I did find that it has something to do with the particular monitor it's being hooked up to.

Using a HDMI->DVI connector affects the resolution, as it comes up at 640x480 when using that cable. But the same monitor when connected via a HDMI cable will show up at the correct (1280x720) resolution. In Linux I tried playing around with xrandr arguments to get the resolution up when connected over HDMI->DVI, but to no success so far (it complains about "screen cannot be larger than 640x480"). Googling i.mx6 and hdmi/dvi, this seems to be a common issue, and seems to be related to not getting the proper EDID info from the monitor when connected over the adapter.

Meanwhile on my TV at home via HDMI, Android would not display on it, with the TV complaining about incompatible signals. However the same board would work when I booted Linux on it, and show up at the correct resolution (1280x720). I could also adjust the Linux resolution by changing the U-Boot arguments, but was not able to find a working Android solution. Meanwhile other TV's and monitors I connected with this same board worked correctly on both Android and Linux so it seemed to be a rare case.

Out of the box I have the same green background as in the videos, but when connected via the HDMI->DVI cable it's in phone mode so it doesn't look quite the same since at full resolution it'll be in tablet mode.

Mark: I noticed in the Linux sound settings there's a page to configure what the default sound output is which I would assume works. For Android, it seems the solution is to get a special cable or box that extracts the audio from the HDMI signal, but there's not a way to do it as far as I could Google inside Android itself.

Out of the box I likewise had a HDMI  "Mode Not Supported" when I connected it to my Samsung TV.  I moved over to my LG TV and it worked no-problem.  I have since connected it to my Acer monitor via HDMI and again no problems.  I did some searching and it might just be a Samsung TV thing.