# modetest -M tilcdc
Encoders:
id	crtc	type	possible crtcs	possible clones
27	26	none	0x00000001	0x00000000

Connectors:
id	encoder	status		name		size (mm)	modes	encoders
28	27	connected	VGA-1          	330x270		5	27
  modes:
	name refresh (Hz) hdisp hss hse htot vdisp vss vse vtot)
  800x600 56 800 824 896 1024 600 601 603 625 36000 flags: phsync, pvsync; type: driver
  640x480 75 640 656 720 840 480 481 484 500 31500 flags: nhsync, nvsync; type: driver
  640x480 73 640 664 704 832 480 489 492 520 31500 flags: nhsync, nvsync; type: driver
  640x480 60 640 656 752 800 480 490 492 525 25175 flags: nhsync, nvsync; type: driver
  720x400 70 720 738 846 900 400 412 414 449 28320 flags: nhsync, pvsync; type: driver
  props:
	1 EDID:
		flags: immutable blob
		blobs:

		value:
			00ffffffffffff0012e51019502d3101
			0a11010368211b78eaeea69e544c9926
			194f54afcf0081800101010101010101
			010101010101bc34009851002a401090
			1300510e1100001e000000fc004c4d31
			3731302028564741290a000000fd0037
			4c1e510e000a202020202020000000ff
			0032303030303038300a202020200023
	2 DPMS:
		flags: enum
		enums: On=0 Standby=1 Suspend=2 Off=3
		value: 0

CRTCs:
id	fb	pos	size
26	31	(0,0)	(800x600)
  800x600 56 800 824 896 1024 600 601 603 625 36000 flags: phsync, pvsync; type: driver
  props:

Planes:
id	crtc	fb	CRTC x,y	x,y	gamma size	possible crtcs
25	26	31	0,0		0,0	0       	0x00000001
  formats: RG16
  props:
	5 type:
		flags: immutable enum
		enums: Overlay=0 Primary=1 Cursor=2
		value: 1

Frame buffers:
id	size	pitch

#
# modetest -M tilcdc -s 28:800x600-56@RG16
setting mode 800x600-56Hz@RG16 on connectors 28, crtc 26
tilcdc da8xx_lcdc.0: tilcdc_crtc_irq(0x00000004): Sync lost
tilcdc da8xx_lcdc.0: tilcdc_crtc_irq(0x00000004): Sync lost
tilcdc da8xx_lcdc.0: tilcdc_crtc_irq(0x00000004): Sync lost
tilcdc da8xx_lcdc.0: tilcdc_crtc_irq(0x00000004): Sync lost
tilcdc da8xx_lcdc.0: tilcdc_crtc_irq(0x00000004): Sync lost
tilcdc da8xx_lcdc.0: tilcdc_crtc_irq(0x00000004): Sync lost
tilcdc da8xx_lcdc.0: tilcdc_crtc_irq(0x00000004): Sync lost
tilcdc da8xx_lcdc.0: tilcdc_crtc_irq(0x00000004): Sync lost
tilcdc da8xx_lcdc.0: tilcdc_crtc_irq(0x00000004): Sync lost
tilcdc da8xx_lcdc.0: tilcdc_crtc_irq(0x00000004): Sync lost
tilcdc da8xx_lcdc.0: tilcdc_crtc_irq(0x00000004): Sync lost flood detected, recovering
tilcdc da8xx_lcdc.0: tilcdc_crtc_recover_work: Reset CRTC
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1106 at drivers/gpu/drm/drm_atomic_helper.c:1141 drm_atomic_helper_wait_for_vblanks+0x218/0x228 [drm_kms_helper]
[CRTC:26] vblank wait timed out
Modules linked in: ofpart davinci_nand nand nand_ecc nand_ids mtd tilcdc dumb_vga_dac snd_soc_simple_card snd_soc_tlv320aic3x snd_soc_davinci_mcasp snd_soc_simple_card_utils drm_kms_helper snd_soc_edma snd_soc_core syscopyarea sysfillrect sysimgblt fb_sys_fops snd_pcm_dmaengine snd_pcm drm ti_aemif snd_timer snd backlight soundcore davinci_wdt rtc_omap
CPU: 0 PID: 1106 Comm: modetest Not tainted 4.9.0-rc8-09308-g7da88d5 #239
Hardware name: Generic DA850/OMAP-L138/AM18x
Backtrace:
[<c000d570>] (dump_backtrace) from [<c000d818>] (show_stack+0x18/0x1c)
 r6:00000000 r5:bf22028c r4:c7015cb8 r3:00000000
[<c000d800>] (show_stack) from [<c0200dbc>] (dump_stack+0x20/0x28)
[<c0200d9c>] (dump_stack) from [<c001b67c>] (__warn+0xdc/0x104)
[<c001b5a0>] (__warn) from [<c001b6e4>] (warn_slowpath_fmt+0x40/0x48)
 r9:c7b73010 r8:00000000 r7:c7151000 r6:c7003200 r5:c702de40 r4:bf2203c4
[<c001b6a8>] (warn_slowpath_fmt) from [<bf215e28>] (drm_atomic_helper_wait_for_vblanks+0x218/0x228 [drm_kms_helper])
 r3:0000001a r2:bf2203c4
 r4:00000000
[<bf215c10>] (drm_atomic_helper_wait_for_vblanks [drm_kms_helper]) from [<bf26a02c>] (tilcdc_commit+0x60/0x74 [tilcdc])
 r10:c7150830 r9:c7014000 r8:c70f4c00 r7:c7015dd0 r6:00000000 r5:c7151000
 r4:c702de40
[<bf269fcc>] (tilcdc_commit [tilcdc]) from [<bf05c884>] (drm_atomic_commit+0x54/0x60 [drm])
 r6:c7151000 r5:c702de40 r4:00000000 r3:bf269fcc
[<bf05c830>] (drm_atomic_commit [drm]) from [<bf218b7c>] (drm_atomic_helper_set_config+0x80/0xc8 [drm_kms_helper])
 r6:c7b73010 r5:00000000 r4:c702de40 r3:00000001
[<bf218afc>] (drm_atomic_helper_set_config [drm_kms_helper]) from [<bf051374>] (drm_mode_set_config_internal+0x60/0xe4 [drm])
 r7:c70f4c00 r6:c7a72d00 r5:c7b73010 r4:c70b6300
[<bf051314>] (drm_mode_set_config_internal [drm]) from [<bf051c4c>] (drm_mode_setcrtc+0x434/0x490 [drm])
 r7:c70f4c00 r6:c7a72d00 r5:c7151000 r4:c7015e50
[<bf051818>] (drm_mode_setcrtc [drm]) from [<bf049c0c>] (drm_ioctl+0x208/0x434 [drm])
 r10:c06864a2 r9:c7b28180 r8:bf068ca0 r7:00000068 r6:c7015e50 r5:00000068
 r4:00000051
[<bf049a04>] (drm_ioctl [drm]) from [<c00dde54>] (do_vfs_ioctl+0x94/0x978)
 r10:00000000 r9:c7014000 r8:00000003 r7:00000003 r6:c7034a00 r5:c7bc1bf8
 r4:bee98ae0
[<c00dddc0>] (do_vfs_ioctl) from [<c00de774>] (SyS_ioctl+0x3c/0x64)
 r10:00000000 r9:c7014000 r8:00000003 r7:c06864a2 r6:c7034a00 r5:bee98ae0
 r4:c7034a00
[<c00de738>] (SyS_ioctl) from [<c000a460>] (ret_fast_syscall+0x0/0x38)
 r8:c000a604 r7:00000036 r6:c06864a2 r5:bee98ae0 r4:bee98ae0 r3:00000000
---[ end trace f6e6257628010730 ]---