Nitrogen 6x - Using HDMI

[WarheadsSE]

Hi,

I am trying to get Arch Linux Arm running on the Nitrogen 6x board. I have not been able to get anything out on the HDMI output but can contact with the board through console port and thorugh SSH.

When trying to look into what's wrong I started to look in the dmesg output and found the error messages below. Can someone give some advice what's wrong and how to get it working?

Thanks,
/Peter
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[ 6.219746] systemd-udevd[111]: starting version 189
[ 6.543013] Division by zero in kernel.
[ 6.543054] [<c00467f4>] (unwind_backtrace+0x0/0xe0) from [<c01fe5d4>] (Ldiv0+0x8/0x10)
[ 6.543085] [<c01fe5d4>] (Ldiv0+0x8/0x10) from [<c023cc88>] (mxcfb_check_var+0x230/0x258)
[ 6.543107] [<c023cc88>] (mxcfb_check_var+0x230/0x258) from [<c0227f28>] (fb_set_var+0xc4/0x288)
[ 6.543126] [<c0227f28>] (fb_set_var+0xc4/0x288) from [<c0327228>] (release_disp_output+0xa4/0x114)
[ 6.543144] [<c0327228>] (release_disp_output+0xa4/0x114) from [<c03284dc>] (mxc_vout_release+0x4c/0x70)
[ 6.543166] [<c03284dc>] (mxc_vout_release+0x4c/0x70) from [<c031c850>] (v4l2_release+0x44/0x64)
[ 6.543185] [<c031c850>] (v4l2_release+0x44/0x64) from [<c00fce2c>] (fput+0x10c/0x1d8)
[ 6.543826] [<c00fce2c>] (fput+0x10c/0x1d8) from [<c00f9660>] (filp_close+0x70/0x7c)
[ 6.543846] [<c00f9660>] (filp_close+0x70/0x7c) from [<c00f96f8>] (sys_close+0x8c/0xc4)
[ 6.543871] [<c00f96f8>] (sys_close+0x8c/0xc4) from [<c0040c80>] (ret_fast_syscall+0x0/0x30)
[ 6.543906] ------------[ cut here ]------------
[ 6.543922] WARNING: at mm/page_alloc.c:2106 __alloc_pages_nodemask+0x154/0x6a0()
[ 6.543930] Modules linked in: ov5642_camera camera_sensor_clock
[ 6.543960] [<c00467f4>] (unwind_backtrace+0x0/0xe0) from [<c006b150>] (warn_slowpath_common+0x4c/0x64)
[ 6.543985] [<c006b150>] (warn_slowpath_common+0x4c/0x64) from [<c006b180>] (warn_slowpath_null+0x18/0x1c)
[ 6.544001] [<c006b180>] (warn_slowpath_null+0x18/0x1c) from [<c00c7850>] (__alloc_pages_nodemask+0x154/0x6a0)
[ 6.544021] [<c00c7850>] (__alloc_pages_nodemask+0x154/0x6a0) from [<c0049608>] (__dma_alloc+0xa8/0x2d4)
[ 6.544040] [<c0049608>] (__dma_alloc+0xa8/0x2d4) from [<c0049874>] (dma_alloc_writecombine+0x1c/0x24)
[ 6.544066] [<c0049874>] (dma_alloc_writecombine+0x1c/0x24) from [<c023e450>] (mxcfb_set_par+0x138/0x478)
[ 6.544095] [<c023e450>] (mxcfb_set_par+0x138/0x478) from [<c0228010>] (fb_set_var+0x1ac/0x288)
[ 6.544115] [<c0228010>] (fb_set_var+0x1ac/0x288) from [<c0327228>] (release_disp_output+0xa4/0x114)
[ 6.544133] [<c0327228>] (release_disp_output+0xa4/0x114) from [<c03284dc>] (mxc_vout_release+0x4c/0x70)
[ 6.544167] [<c03284dc>] (mxc_vout_release+0x4c/0x70) from [<c031c850>] (v4l2_release+0x44/0x64)
[ 6.544526] [<c031c850>] (v4l2_release+0x44/0x64) from [<c00fce2c>] (fput+0x10c/0x1d8)
[ 6.544549] [<c00fce2c>] (fput+0x10c/0x1d8) from [<c00f9660>] (filp_close+0x70/0x7c)
[ 6.544568] [<c00f9660>] (filp_close+0x70/0x7c) from [<c00f96f8>] (sys_close+0x8c/0xc4)
[ 6.544587] [<c00f96f8>] (sys_close+0x8c/0xc4) from [<c0040c80>] (ret_fast_syscall+0x0/0x30)
[ 6.544598] ---[ end trace a8b9cebcf6e69767 ]---
[ 6.544610] mxc_sdc_fb mxc_sdc_fb.0: Unable to allocate framebuffer memory
[ 6.544619] detected fb_set_par error, error code: -12
[ 6.551698] Division by zero in kernel.
[ 6.551727] [<c00467f4>] (unwind_backtrace+0x0/0xe0) from [<c01fe5d4>] (Ldiv0+0x8/0x10)
[ 6.551749] [<c01fe5d4>] (Ldiv0+0x8/0x10) from [<c023cc88>] (mxcfb_check_var+0x230/0x258)
[ 6.551767] [<c023cc88>] (mxcfb_check_var+0x230/0x258) from [<c0227f28>] (fb_set_var+0xc4/0x288)
[ 6.551783] [<c0227f28>] (fb_set_var+0xc4/0x288) from [<c0327228>] (release_disp_output+0xa4/0x114)
[ 6.551798] [<c0327228>] (release_disp_output+0xa4/0x114) from [<c03284dc>] (mxc_vout_release+0x4c/0x70)
[ 6.551818] [<c03284dc>] (mxc_vout_release+0x4c/0x70) from [<c031c850>] (v4l2_release+0x44/0x64)
[ 6.551835] [<c031c850>] (v4l2_release+0x44/0x64) from [<c00fce2c>] (fput+0x10c/0x1d8)
[ 6.551856] [<c00fce2c>] (fput+0x10c/0x1d8) from [<c00f9660>] (filp_close+0x70/0x7c)
[ 6.551871] [<c00f9660>] (filp_close+0x70/0x7c) from [<c00f96f8>] (sys_close+0x8c/0xc4)
[ 6.551888] [<c00f96f8>] (sys_close+0x8c/0xc4) from [<c0040c80>] (ret_fast_syscall+0x0/0x30)
[ 6.551902] Division by zero in kernel.
[ 6.551916] [<c00467f4>] (unwind_backtrace+0x0/0xe0) from [<c01fe5d4>] (Ldiv0+0x8/0x10)
[ 6.551932] [<c01fe5d4>] (Ldiv0+0x8/0x10) from [<c0238878>] (ldb_disp_setup+0xe0/0x160)
[ 6.551950] [<c0238878>] (ldb_disp_setup+0xe0/0x160) from [<c023e34c>] (mxcfb_set_par+0x34/0x478)
[ 6.551967] [<c023e34c>] (mxcfb_set_par+0x34/0x478) from [<c0228010>] (fb_set_var+0x1ac/0x288)
[ 6.551989] [<c0228010>] (fb_set_var+0x1ac/0x288) from [<c0327228>] (release_disp_output+0xa4/0x114)
[ 6.552007] [<c0327228>] (release_disp_output+0xa4/0x114) from [<c03284dc>] (mxc_vout_release+0x4c/0x70)
[ 6.552024] [<c03284dc>] (mxc_vout_release+0x4c/0x70) from [<c031c850>] (v4l2_release+0x44/0x64)
[ 6.552039] [<c031c850>] (v4l2_release+0x44/0x64) from [<c00fce2c>] (fput+0x10c/0x1d8)
[ 6.552054] [<c00fce2c>] (fput+0x10c/0x1d8) from [<c00f9660>] (filp_close+0x70/0x7c)
[ 6.552072] [<c00f9660>] (filp_close+0x70/0x7c) from [<c00f96f8>] (sys_close+0x8c/0xc4)
[ 6.552088] [<c00f96f8>] (sys_close+0x8c/0xc4) from [<c0040c80>] (ret_fast_syscall+0x0/0x30)
[ 6.552128] mxc_sdc_fb mxc_sdc_fb.2: Unable to allocate framebuffer memory
[ 6.552137] detected fb_set_par error, error code: -12
[ 6.559142] mxc_v4l2_output mxc_v4l2_output.0: ERR: fb_set_var.
[ 6.561306] mxc_v4l2_output mxc_v4l2_output.0: ERR: fb_set_var.
[ 7.845885] EXT4-fs (mmcblk0p1): re-mounted. Opts: user_xattr,barrier=1,nodelalloc,data=ordered
[ 8.995853] eth0: Freescale FEC PHY driver [Micrel KSZ9021 Gigabit PHY] (mii_bus:phy_addr=1:06, irq=284)
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[guil]

Hi,

did you get something that explain you kernel issue?

I am testing the ubuntu build given by Boundary devices, and I get the same division by zero issue.

Thanks!

[WarheadsSE]

Sounds like an upstream issue then.

I'll be refocusing on the n6x next week.