← Back to team overview

ubuntu-x-swat team mailing list archive

[Bug 375609] Re: DDC works wrong with Acer AL1916 monitors

 

GOOD session:

$ sudo get-edid | parse-edid
parse-edid: parse-edid version 1.4.1
get-edid: get-edid version 1.4.1

	Performing real mode VBE call
	Interrupt 0x10 ax=0x4f00 bx=0x0 cx=0x0
	Function supported
	Call successful

	VBE version 300
	VBE string at 0x11110 "Intel(r) 82945G Chipset Family Graphics Chip Accelerated VGA BIOS"

VBE/DDC service about to be called
	Report DDC capabilities

	Performing real mode VBE call
	Interrupt 0x10 ax=0x4f15 bx=0x0 cx=0x0
	Function supported
	Call successful

	Monitor and video card combination does not support DDC1 transfers
	Monitor and video card combination supports DDC2 transfers
	0 seconds per 128 byte EDID block transfer
	Screen is not blanked during DDC transfer

Reading next EDID block

VBE/DDC service about to be called
	Read EDID

	Performing real mode VBE call
	Interrupt 0x10 ax=0x4f15 bx=0x1 cx=0x0
	Function supported
	Call successful

parse-edid: EDID checksum passed.

	# EDID version 1 revision 3
Section "Monitor"
	# Block type: 2:0 3:ff
	# Block type: 2:0 3:fd
	# Block type: 2:0 3:fc
	Identifier "Acer AL1916"
	VendorName "ACR"
	ModelName "Acer AL1916"
	# Block type: 2:0 3:ff
	# Block type: 2:0 3:fd
	HorizSync 30-83
	VertRefresh 55-75
	# Max dot clock (video bandwidth) 140 MHz
	# Block type: 2:0 3:fc
	# DPMS capabilities: Active off:yes  Suspend:no  Standby:no

	Mode 	"1280x1024"	# vfreq 60.020Hz, hfreq 63.981kHz
		DotClock	108.000000
		HTimings	1280 1328 1440 1688
		VTimings	1024 1025 1028 1066
		Flags	"+HSync" "+VSync"
	EndMode
	# Block type: 2:0 3:ff
	# Block type: 2:0 3:fd
	# Block type: 2:0 3:fc
EndSection

$ xrandr --verbose
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 1280 x 1280
VGA connected 1280x1024+0+0 (0x3c) normal (normal left inverted right x axis y axis) 376mm x 301mm
	Identifier: 0x3b
	Timestamp:  46714962
	Subpixel:   unknown
	Clones:    
	CRTC:       0
	CRTCs:      0 1
	Panning:    0x0+0+0
	Tracking:   0x0+0+0
	Border:     0/0/0/0
	Transform:  1.000000 0.000000 0.000000
	            0.000000 1.000000 0.000000
	            0.000000 0.000000 1.000000
	           filter: 
	EDID_DATA:
		00ffffffffffff00047249ad0f054080
		0412010368261e6b2a6760a25a499e23
		135054bfef00818f8180714f7140614f
		6140454f4540302a009851002a403070
		1300782d1100001e000000ff004c3439
		3038363831343244490a000000fd0037
		4b1e530e000a202020202020000000fc
		004163657220414c313931360a200076
  1280x1024 (0x3c)  108.0MHz +HSync +VSync *current +preferred
        h: width  1280 start 1328 end 1440 total 1688 skew    0 clock   64.0KHz
        v: height 1024 start 1025 end 1028 total 1066           clock   60.0Hz
  1280x1024 (0x3d)  135.0MHz +HSync +VSync
        h: width  1280 start 1296 end 1440 total 1688 skew    0 clock   80.0KHz
        v: height 1024 start 1025 end 1028 total 1066           clock   75.0Hz
  1280x1024 (0x3c)  108.0MHz +HSync +VSync *current
        h: width  1280 start 1328 end 1440 total 1688 skew    0 clock   64.0KHz
        v: height 1024 start 1025 end 1028 total 1066           clock   60.0Hz
  1152x864 (0x3e)  108.0MHz +HSync +VSync
        h: width  1152 start 1216 end 1344 total 1600 skew    0 clock   67.5KHz
        v: height  864 start  865 end  868 total  900           clock   75.0Hz
  1152x864 (0x3f)   81.6MHz -HSync +VSync
        h: width  1152 start 1216 end 1336 total 1520 skew    0 clock   53.7KHz
        v: height  864 start  865 end  868 total  895           clock   60.0Hz
  1024x768 (0x40)   78.8MHz +HSync +VSync
        h: width  1024 start 1040 end 1136 total 1312 skew    0 clock   60.0KHz
        v: height  768 start  769 end  772 total  800           clock   75.0Hz
  1024x768 (0x41)   75.0MHz -HSync -VSync
        h: width  1024 start 1048 end 1184 total 1328 skew    0 clock   56.5KHz
        v: height  768 start  771 end  777 total  806           clock   70.1Hz
  1024x768 (0x42)   65.0MHz -HSync -VSync
        h: width  1024 start 1048 end 1184 total 1344 skew    0 clock   48.4KHz
        v: height  768 start  771 end  777 total  806           clock   60.0Hz
  832x624 (0x43)   57.3MHz -HSync -VSync
        h: width   832 start  864 end  928 total 1152 skew    0 clock   49.7KHz
        v: height  624 start  625 end  628 total  667           clock   74.6Hz
  800x600 (0x44)   50.0MHz +HSync +VSync
        h: width   800 start  856 end  976 total 1040 skew    0 clock   48.1KHz
        v: height  600 start  637 end  643 total  666           clock   72.2Hz
  800x600 (0x45)   49.5MHz +HSync +VSync
        h: width   800 start  816 end  896 total 1056 skew    0 clock   46.9KHz
        v: height  600 start  601 end  604 total  625           clock   75.0Hz
  800x600 (0x46)   40.0MHz +HSync +VSync
        h: width   800 start  840 end  968 total 1056 skew    0 clock   37.9KHz
        v: height  600 start  601 end  605 total  628           clock   60.3Hz
  800x600 (0x47)   36.0MHz +HSync +VSync
        h: width   800 start  824 end  896 total 1024 skew    0 clock   35.2KHz
        v: height  600 start  601 end  603 total  625           clock   56.2Hz
  640x480 (0x48)   31.5MHz -HSync -VSync
        h: width   640 start  656 end  720 total  840 skew    0 clock   37.5KHz
        v: height  480 start  481 end  484 total  500           clock   75.0Hz
  640x480 (0x49)   31.5MHz -HSync -VSync
        h: width   640 start  664 end  704 total  832 skew    0 clock   37.9KHz
        v: height  480 start  489 end  492 total  520           clock   72.8Hz
  640x480 (0x4a)   30.2MHz -HSync -VSync
        h: width   640 start  704 end  768 total  864 skew    0 clock   35.0KHz
        v: height  480 start  483 end  486 total  525           clock   66.7Hz
  640x480 (0x4b)   25.2MHz -HSync -VSync
        h: width   640 start  656 end  752 total  800 skew    0 clock   31.5KHz
        v: height  480 start  490 end  492 total  525           clock   59.9Hz
  720x400 (0x4c)   28.3MHz -HSync +VSync
        h: width   720 start  738 end  846 total  900 skew    0 clock   31.5KHz
        v: height  400 start  412 end  414 total  449           clock   70.1Hz

-- 
DDC works wrong with Acer AL1916 monitors
https://bugs.launchpad.net/bugs/375609
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xserver-xorg-video-intel in ubuntu.



References