From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 56111] New: EDID not read, results in flickering monitor Date: Thu, 18 Oct 2012 01:40:03 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1194903007==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 209389E7CC for ; Wed, 17 Oct 2012 18:40:04 -0700 (PDT) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============1194903007== Content-Type: multipart/alternative; boundary="1350524403.Bc2D0.27462"; charset="us-ascii" --1350524403.Bc2D0.27462 Date: Thu, 18 Oct 2012 01:40:03 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=56111 Priority: medium Bug ID: 56111 Assignee: dri-devel@lists.freedesktop.org Summary: EDID not read, results in flickering monitor Severity: normal Classification: Unclassified OS: All Reporter: darxus@chaosreigns.com Hardware: Other Status: NEW Version: unspecified Component: General Product: DRI Created attachment 68741 --> https://bugs.freedesktop.org/attachment.cgi?id=68741&action=edit Ubuntu Oneric dmesg output, not having this problem Debian bug: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=690794 Ubuntu bug, possibly the same, fixed, but I don't know how: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/958439 Installed Debian Wheezy, then installed package linux-image-3.5-trunk-amd64 from Experimental, which I guess is an unmodified mainline kernel: $ uname -a Linux dancer 3.5-trunk-amd64 #1 SMP Debian 3.5.5-1~experimental.1 x86_64 GNU/Linux EDID is not read properly, resulting in (CRT) monitor flickering (looks like 60hz). gnome-control-center says the display is "Unknown". xrandr --verbose does not mention the EDID. I previously had these problems on Ubuntu, reported in the above Ubuntu bug. It persisted when I changed video cards from Nvidia to AMD Radeon. It went away with a kernel upgrade. Not sure what the change was. "xrandr --verbose" output: ------------------------------------------------------------------------- xrandr: Failed to get size of gamma for output default Screen 0: minimum 640 x 400, current 1600 x 1200, maximum 1920 x 1440 default connected 1600x1200+0+0 (0x13b) normal (normal) 0mm x 0mm Identifier: 0x137 Timestamp: 40607 Subpixel: no subpixels Clones: CRTC: 0 CRTCs: 0 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: 1920x1440 (0x138) 0.0MHz h: width 1920 start 0 end 0 total 1920 skew 0 clock 0.0KHz v: height 1440 start 0 end 0 total 1440 clock 0.0Hz 1856x1392 (0x139) 0.0MHz h: width 1856 start 0 end 0 total 1856 skew 0 clock 0.0KHz v: height 1392 start 0 end 0 total 1392 clock 0.0Hz 1792x1344 (0x13a) 0.0MHz h: width 1792 start 0 end 0 total 1792 skew 0 clock 0.0KHz v: height 1344 start 0 end 0 total 1344 clock 0.0Hz 1600x1200 (0x13b) 0.0MHz *current h: width 1600 start 0 end 0 total 1600 skew 0 clock 0.0KHz v: height 1200 start 0 end 0 total 1200 clock 0.0Hz 1280x1024 (0x13c) 0.0MHz h: width 1280 start 0 end 0 total 1280 skew 0 clock 0.0KHz v: height 1024 start 0 end 0 total 1024 clock 0.0Hz 1152x864 (0x13d) 0.0MHz h: width 1152 start 0 end 0 total 1152 skew 0 clock 0.0KHz v: height 864 start 0 end 0 total 864 clock 0.0Hz 1024x768 (0x13e) 0.0MHz h: width 1024 start 0 end 0 total 1024 skew 0 clock 0.0KHz v: height 768 start 0 end 0 total 768 clock 0.0Hz 800x600 (0x13f) 0.0MHz h: width 800 start 0 end 0 total 800 skew 0 clock 0.0KHz v: height 600 start 0 end 0 total 600 clock 0.0Hz 640x480 (0x140) 0.0MHz h: width 640 start 0 end 0 total 640 skew 0 clock 0.0KHz v: height 480 start 0 end 0 total 480 clock 0.0Hz 720x400 (0x141) 0.0MHz h: width 720 start 0 end 0 total 720 skew 0 clock 0.0KHz v: height 400 start 0 end 0 total 400 clock 0.0Hz ------------------------------------------------------------------------- "get-edid 2>&1 | parse-edid > get-parse-edid.txt 2>&1" output: ------------------------------------------------------------------------- parse-edid: parse-edid version 2.0.0 parse-edid: EDID checksum failed - data is corrupt. Continuing anyway. parse-edid: first bytes don't match EDID version 1 header parse-edid: do not trust output (if any). # EDID version 32 revision 118 Section "Monitor" Identifier "NQ@:6765" VendorName "NQ@" ModelName "NQ@:6765" # DPMS capabilities: Active off:yes Suspend:yes Standby:no Mode "1110x1568" # vfreq 17.559Hz, hfreq 33.766kHz DotClock 82.930000 HTimings 1110 1218 1326 2456 VTimings 1568 1600 1626 1923 EndMode Mode "884x888" # vfreq 335.422Hz, hfreq 314.290kHz DotClock 287.890000 HTimings 884 916 1029 916 VTimings 888 943 967 937 EndMode Mode "888x632" # vfreq 389.264Hz, hfreq 264.700kHz DotClock 251.200000 HTimings 888 987 1107 949 VTimings 632 635 648 680 EndMode Mode "1652x1902" # vfreq 16.831Hz, hfreq 45.478kHz DotClock 254.540000 HTimings 1652 1769 1881 5597 VTimings 1902 1957 2005 2702 EndMode EndSection ------------------------------------------------------------------------- Output of "xrandr --verbose" on Ubuntu Oneric, which does not have this problem: ------------------------------------------------------------------------- Screen 0: minimum 320 x 200, current 1600 x 1200, maximum 16384 x 16384 DisplayPort-0 disconnected (normal left inverted right x axis y axis) Identifier: 0x55 Timestamp: 32750 Subpixel: horizontal rgb Clones: CRTCs: 0 1 2 3 4 5 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: underscan vborder: 0 (0x00000000) range: (0,128) underscan hborder: 0 (0x00000000) range: (0,128) underscan: off supported: off on auto coherent: 1 (0x00000001) range: (0,1) DisplayPort-1 disconnected (normal left inverted right x axis y axis) Identifier: 0x56 Timestamp: 32750 Subpixel: horizontal rgb Clones: CRTCs: 0 1 2 3 4 5 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: underscan vborder: 0 (0x00000000) range: (0,128) underscan hborder: 0 (0x00000000) range: (0,128) underscan: off supported: off on auto coherent: 1 (0x00000001) range: (0,1) HDMI-0 disconnected (normal left inverted right x axis y axis) Identifier: 0x57 Timestamp: 32750 Subpixel: horizontal rgb Clones: CRTCs: 0 1 2 3 4 5 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: underscan vborder: 0 (0x00000000) range: (0,128) underscan hborder: 0 (0x00000000) range: (0,128) underscan: off supported: off on auto coherent: 1 (0x00000001) range: (0,1) DVI-0 disconnected (normal left inverted right x axis y axis) Identifier: 0x58 Timestamp: 32750 Subpixel: horizontal rgb Clones: CRTCs: 0 1 2 3 4 5 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: underscan vborder: 0 (0x00000000) range: (0,128) underscan hborder: 0 (0x00000000) range: (0,128) underscan: off supported: off on auto coherent: 1 (0x00000001) range: (0,1) DVI-1 connected 1600x1200+0+0 (0x5a) normal (normal left inverted right x axis y axis) 390mm x 290mm Identifier: 0x59 Timestamp: 32750 Subpixel: horizontal rgb Gamma: 1.0:1.0:1.0 Brightness: 1.0 Clones: CRTC: 0 CRTCs: 0 1 2 3 4 5 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: EDID: 00ffffffffffff005a6309e801010101 260d01031d281ec0eacc58a054479925 0f484cffff80a94f81996159714fc14f c940d140e140a659403062b0324040c0 130086221100001e000000ff0034324b 3033333830303333350a000000fd0032 b41e6e1a000a202020202020000000fc 004732323066620a20202020202000df load detection: 1 (0x00000001) range: (0,1) underscan vborder: 0 (0x00000000) range: (0,128) underscan hborder: 0 (0x00000000) range: (0,128) underscan: off supported: off on auto coherent: 1 (0x00000001) range: (0,1) 1600x1200 (0x5a) 229.5MHz +HSync +VSync *current +preferred h: width 1600 start 1664 end 1856 total 2160 skew 0 clock 106.2KHz v: height 1200 start 1201 end 1204 total 1250 clock 85.0Hz 2048x1536 (0x5b) 267.0MHz -HSync +VSync h: width 2048 start 2200 end 2424 total 2800 skew 0 clock 95.4KHz v: height 1536 start 1537 end 1540 total 1589 clock 60.0Hz 1920x1440 (0x5c) 234.0MHz -HSync +VSync h: width 1920 start 2048 end 2256 total 2600 skew 0 clock 90.0KHz v: height 1440 start 1441 end 1444 total 1500 clock 60.0Hz 1856x1392 (0x5d) 218.2MHz -HSync +VSync h: width 1856 start 1952 end 2176 total 2528 skew 0 clock 86.3KHz v: height 1392 start 1393 end 1396 total 1439 clock 60.0Hz 1792x1344 (0x5e) 261.0MHz -HSync +VSync h: width 1792 start 1888 end 2104 total 2456 skew 0 clock 106.3KHz v: height 1344 start 1345 end 1348 total 1417 clock 75.0Hz 1600x1200 (0x5f) 202.5MHz +HSync +VSync h: width 1600 start 1664 end 1856 total 2160 skew 0 clock 93.8KHz v: height 1200 start 1201 end 1204 total 1250 clock 75.0Hz 1280x1024 (0x60) 157.5MHz +HSync +VSync h: width 1280 start 1344 end 1504 total 1728 skew 0 clock 91.1KHz v: height 1024 start 1025 end 1028 total 1072 clock 85.0Hz 1280x1024 (0x61) 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 1152x864 (0x62) 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 1024x768 (0x63) 94.5MHz +HSync +VSync h: width 1024 start 1072 end 1168 total 1376 skew 0 clock 68.7KHz v: height 768 start 769 end 772 total 808 clock 85.0Hz 1024x768 (0x64) 78.8MHz +HSync +VSync h: width 1024 start 1040 end 1136 total 1312 skew 0 clock 60.1KHz v: height 768 start 769 end 772 total 800 clock 75.1Hz 1024x768 (0x65) 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 (0x66) 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 1024x768 (0x67) 44.9MHz +HSync +VSync Interlace h: width 1024 start 1032 end 1208 total 1264 skew 0 clock 35.5KHz v: height 768 start 768 end 776 total 817 clock 43.5Hz 832x624 (0x68) 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 (0x69) 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 (0x6a) 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 (0x6b) 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 (0x6c) 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 (0x6d) 31.5MHz -HSync -VSync h: width 640 start 664 end 704 total 832 skew 0 clock 37.9KHz v: height 480 start 489 end 491 total 520 clock 72.8Hz 640x480 (0x6e) 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 (0x6f) 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 (0x70) 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 60.0Hz 720x400 (0x71) 35.5MHz -HSync -VSync h: width 720 start 738 end 846 total 900 skew 0 clock 39.4KHz v: height 400 start 421 end 423 total 449 clock 87.8Hz 720x400 (0x72) 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 ------------------------------------------------------------------------- Output of "get-edid 2>&1 | parse-edid > get-parse-edid.txt 2>&1" on Ubuntu Oneric: ------------------------------------------------------------------------- parse-edid: parse-edid version 2.0.0 parse-edid: EDID checksum failed - data is corrupt. Continuing anyway. parse-edid: first bytes don't match EDID version 1 header parse-edid: do not trust output (if any). # EDID version 32 revision 118 Section "Monitor" Identifier "NQ@:6765" VendorName "NQ@" ModelName "NQ@:6765" # DPMS capabilities: Active off:yes Suspend:yes Standby:no Mode "623x1902" # vfreq 121.269Hz, hfreq 368.295kHz DotClock 269.960000 HTimings 623 671 783 733 VTimings 1902 1908 1945 3037 EndMode Mode "613x1637" # vfreq 16.090Hz, hfreq 65.018kHz DotClock 263.780000 HTimings 613 729 787 4057 VTimings 1637 1655 1671 4041 EndMode Mode "1652x1900" # vfreq 48.351Hz, hfreq 134.078kHz DotClock 269.900000 HTimings 1652 1757 1867 2013 VTimings 1900 1906 1913 2773 EndMode Mode "1568x1908" # vfreq 19.585Hz, hfreq 49.374kHz DotClock 259.560000 HTimings 1568 1686 1783 5257 VTimings 1908 1930 1949 2521 EndMode EndSection ------------------------------------------------------------------------- Oneric kernel is: $ uname -a Linux dancer 3.0.0-26-generic #43-Ubuntu SMP Tue Sep 25 17:19:22 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux -- You are receiving this mail because: You are the assignee for the bug. --1350524403.Bc2D0.27462 Date: Thu, 18 Oct 2012 01:40:03 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"
Priority medium
Bug ID 56111
Assignee dri-devel@lists.freedesktop.org
Summary EDID not read, results in flickering monitor
Severity normal
Classification Unclassified
OS All
Reporter darxus@chaosreigns.com
Hardware Other
Status NEW
Version unspecified
Component General
Product DRI 

Created attachment 68741 [details]
Ubuntu Oneric dmesg output, not having this problem

Debian bug:  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=690794
Ubuntu bug, possibly the same, fixed, but I don't know how: 
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/958439

Installed Debian Wheezy, then installed package linux-image-3.5-trunk-amd64
from Experimental, which I guess is an unmodified mainline kernel:

$ uname -a
Linux dancer 3.5-trunk-amd64 #1 SMP Debian 3.5.5-1~experimental.1 x86_64
GNU/Linux

EDID is not read properly, resulting in (CRT) monitor flickering (looks like
60hz).

gnome-control-center says the display is "Unknown".

xrandr --verbose does not mention the EDID.

I previously had these problems on Ubuntu, reported in the above Ubuntu bug. 
It persisted when I changed video cards from Nvidia to AMD Radeon.  It went
away with a kernel upgrade.  Not sure what the change was.

"xrandr --verbose" output:

-------------------------------------------------------------------------
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 400, current 1600 x 1200, maximum 1920 x 1440
default connected 1600x1200+0+0 (0x13b) normal (normal) 0mm x 0mm
        Identifier: 0x137
        Timestamp:  40607
        Subpixel:   no subpixels
        Clones:    
        CRTC:       0
        CRTCs:      0
        Transform:  1.000000 0.000000 0.000000
                    0.000000 1.000000 0.000000
                    0.000000 0.000000 1.000000
                   filter: 
  1920x1440 (0x138)    0.0MHz
        h: width  1920 start    0 end    0 total 1920 skew    0 clock    0.0KHz
        v: height 1440 start    0 end    0 total 1440           clock    0.0Hz
  1856x1392 (0x139)    0.0MHz
        h: width  1856 start    0 end    0 total 1856 skew    0 clock    0.0KHz
        v: height 1392 start    0 end    0 total 1392           clock    0.0Hz
  1792x1344 (0x13a)    0.0MHz
        h: width  1792 start    0 end    0 total 1792 skew    0 clock    0.0KHz
        v: height 1344 start    0 end    0 total 1344           clock    0.0Hz
  1600x1200 (0x13b)    0.0MHz *current
        h: width  1600 start    0 end    0 total 1600 skew    0 clock    0.0KHz
        v: height 1200 start    0 end    0 total 1200           clock    0.0Hz
  1280x1024 (0x13c)    0.0MHz
        h: width  1280 start    0 end    0 total 1280 skew    0 clock    0.0KHz
        v: height 1024 start    0 end    0 total 1024           clock    0.0Hz
  1152x864 (0x13d)    0.0MHz
        h: width  1152 start    0 end    0 total 1152 skew    0 clock    0.0KHz
        v: height  864 start    0 end    0 total  864           clock    0.0Hz
  1024x768 (0x13e)    0.0MHz
        h: width  1024 start    0 end    0 total 1024 skew    0 clock    0.0KHz
        v: height  768 start    0 end    0 total  768           clock    0.0Hz
  800x600 (0x13f)    0.0MHz
        h: width   800 start    0 end    0 total  800 skew    0 clock    0.0KHz
        v: height  600 start    0 end    0 total  600           clock    0.0Hz
  640x480 (0x140)    0.0MHz
        h: width   640 start    0 end    0 total  640 skew    0 clock    0.0KHz
        v: height  480 start    0 end    0 total  480           clock    0.0Hz
  720x400 (0x141)    0.0MHz
        h: width   720 start    0 end    0 total  720 skew    0 clock    0.0KHz
        v: height  400 start    0 end    0 total  400           clock    0.0Hz
-------------------------------------------------------------------------

"get-edid 2>&1 | parse-edid > get-parse-edid.txt 2>&1" output:

-------------------------------------------------------------------------
parse-edid: parse-edid version 2.0.0
parse-edid: EDID checksum failed - data is corrupt. Continuing anyway.
parse-edid: first bytes don't match EDID version 1 header
parse-edid: do not trust output (if any).

        # EDID version 32 revision 118
Section "Monitor"
        Identifier "NQ@:6765"
        VendorName "NQ@"
        ModelName "NQ@:6765"
        # DPMS capabilities: Active off:yes  Suspend:yes  Standby:no

        Mode    "1110x1568"     # vfreq 17.559Hz, hfreq 33.766kHz
                DotClock        82.930000
                HTimings        1110 1218 1326 2456
                VTimings        1568 1600 1626 1923
        EndMode
        Mode    "884x888"       # vfreq 335.422Hz, hfreq 314.290kHz
                DotClock        287.890000
                HTimings        884 916 1029 916
                VTimings        888 943 967 937
        EndMode
        Mode    "888x632"       # vfreq 389.264Hz, hfreq 264.700kHz
                DotClock        251.200000
                HTimings        888 987 1107 949
                VTimings        632 635 648 680
        EndMode
        Mode    "1652x1902"     # vfreq 16.831Hz, hfreq 45.478kHz
                DotClock        254.540000
                HTimings        1652 1769 1881 5597
                VTimings        1902 1957 2005 2702
        EndMode
EndSection
-------------------------------------------------------------------------


Output of "xrandr --verbose" on Ubuntu Oneric, which does not have this
problem:

-------------------------------------------------------------------------
Screen 0: minimum 320 x 200, current 1600 x 1200, maximum 16384 x 16384
DisplayPort-0 disconnected (normal left inverted right x axis y axis)
        Identifier: 0x55
        Timestamp:  32750
        Subpixel:   horizontal rgb
        Clones:    
        CRTCs:      0 1 2 3 4 5
        Transform:  1.000000 0.000000 0.000000
                    0.000000 1.000000 0.000000
                    0.000000 0.000000 1.000000
                   filter: 
        underscan vborder: 0 (0x00000000)       range:  (0,128)
        underscan hborder: 0 (0x00000000)       range:  (0,128)
        underscan:      off
                supported: off          on           auto        
        coherent: 1 (0x00000001)        range:  (0,1)
DisplayPort-1 disconnected (normal left inverted right x axis y axis)
        Identifier: 0x56
        Timestamp:  32750
        Subpixel:   horizontal rgb
        Clones:    
        CRTCs:      0 1 2 3 4 5
        Transform:  1.000000 0.000000 0.000000
                    0.000000 1.000000 0.000000
                    0.000000 0.000000 1.000000
                   filter: 
        underscan vborder: 0 (0x00000000)       range:  (0,128)
        underscan hborder: 0 (0x00000000)       range:  (0,128)
        underscan:      off
                supported: off          on           auto        
        coherent: 1 (0x00000001)        range:  (0,1)
HDMI-0 disconnected (normal left inverted right x axis y axis)
        Identifier: 0x57
        Timestamp:  32750
        Subpixel:   horizontal rgb
        Clones:    
        CRTCs:      0 1 2 3 4 5
        Transform:  1.000000 0.000000 0.000000
                    0.000000 1.000000 0.000000
                    0.000000 0.000000 1.000000
                   filter: 
        underscan vborder: 0 (0x00000000)       range:  (0,128)
        underscan hborder: 0 (0x00000000)       range:  (0,128)
        underscan:      off
                supported: off          on           auto        
        coherent: 1 (0x00000001)        range:  (0,1)
DVI-0 disconnected (normal left inverted right x axis y axis)
        Identifier: 0x58
        Timestamp:  32750
        Subpixel:   horizontal rgb
        Clones:    
        CRTCs:      0 1 2 3 4 5
        Transform:  1.000000 0.000000 0.000000
                    0.000000 1.000000 0.000000
                    0.000000 0.000000 1.000000
                   filter: 
        underscan vborder: 0 (0x00000000)       range:  (0,128)
        underscan hborder: 0 (0x00000000)       range:  (0,128)
        underscan:      off
                supported: off          on           auto        
        coherent: 1 (0x00000001)        range:  (0,1)
DVI-1 connected 1600x1200+0+0 (0x5a) normal (normal left inverted right x axis
y axis) 390mm x 290mm
        Identifier: 0x59
        Timestamp:  32750
        Subpixel:   horizontal rgb
        Gamma:      1.0:1.0:1.0
        Brightness: 1.0
        Clones:    
        CRTC:       0
        CRTCs:      0 1 2 3 4 5
        Transform:  1.000000 0.000000 0.000000
                    0.000000 1.000000 0.000000
                    0.000000 0.000000 1.000000
                   filter: 
        EDID:
                00ffffffffffff005a6309e801010101
                260d01031d281ec0eacc58a054479925
                0f484cffff80a94f81996159714fc14f
                c940d140e140a659403062b0324040c0
                130086221100001e000000ff0034324b
                3033333830303333350a000000fd0032
                b41e6e1a000a202020202020000000fc
                004732323066620a20202020202000df
        load detection: 1 (0x00000001)  range:  (0,1)
        underscan vborder: 0 (0x00000000)       range:  (0,128)
        underscan hborder: 0 (0x00000000)       range:  (0,128)
        underscan:      off
                supported: off          on           auto        
        coherent: 1 (0x00000001)        range:  (0,1)
  1600x1200 (0x5a)  229.5MHz +HSync +VSync *current +preferred
        h: width  1600 start 1664 end 1856 total 2160 skew    0 clock  106.2KHz
        v: height 1200 start 1201 end 1204 total 1250           clock   85.0Hz
  2048x1536 (0x5b)  267.0MHz -HSync +VSync
        h: width  2048 start 2200 end 2424 total 2800 skew    0 clock   95.4KHz
        v: height 1536 start 1537 end 1540 total 1589           clock   60.0Hz
  1920x1440 (0x5c)  234.0MHz -HSync +VSync
        h: width  1920 start 2048 end 2256 total 2600 skew    0 clock   90.0KHz
        v: height 1440 start 1441 end 1444 total 1500           clock   60.0Hz
  1856x1392 (0x5d)  218.2MHz -HSync +VSync
        h: width  1856 start 1952 end 2176 total 2528 skew    0 clock   86.3KHz
        v: height 1392 start 1393 end 1396 total 1439           clock   60.0Hz
  1792x1344 (0x5e)  261.0MHz -HSync +VSync
        h: width  1792 start 1888 end 2104 total 2456 skew    0 clock  106.3KHz
        v: height 1344 start 1345 end 1348 total 1417           clock   75.0Hz
  1600x1200 (0x5f)  202.5MHz +HSync +VSync
        h: width  1600 start 1664 end 1856 total 2160 skew    0 clock   93.8KHz
        v: height 1200 start 1201 end 1204 total 1250           clock   75.0Hz
  1280x1024 (0x60)  157.5MHz +HSync +VSync
        h: width  1280 start 1344 end 1504 total 1728 skew    0 clock   91.1KHz
        v: height 1024 start 1025 end 1028 total 1072           clock   85.0Hz
  1280x1024 (0x61)  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
  1152x864 (0x62)  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
  1024x768 (0x63)   94.5MHz +HSync +VSync
        h: width  1024 start 1072 end 1168 total 1376 skew    0 clock   68.7KHz
        v: height  768 start  769 end  772 total  808           clock   85.0Hz
  1024x768 (0x64)   78.8MHz +HSync +VSync
        h: width  1024 start 1040 end 1136 total 1312 skew    0 clock   60.1KHz
        v: height  768 start  769 end  772 total  800           clock   75.1Hz
  1024x768 (0x65)   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 (0x66)   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
  1024x768 (0x67)   44.9MHz +HSync +VSync Interlace
        h: width  1024 start 1032 end 1208 total 1264 skew    0 clock   35.5KHz
        v: height  768 start  768 end  776 total  817           clock   43.5Hz
  832x624 (0x68)   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 (0x69)   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 (0x6a)   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 (0x6b)   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 (0x6c)   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 (0x6d)   31.5MHz -HSync -VSync
        h: width   640 start  664 end  704 total  832 skew    0 clock   37.9KHz
        v: height  480 start  489 end  491 total  520           clock   72.8Hz
  640x480 (0x6e)   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 (0x6f)   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 (0x70)   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   60.0Hz
  720x400 (0x71)   35.5MHz -HSync -VSync
        h: width   720 start  738 end  846 total  900 skew    0 clock   39.4KHz
        v: height  400 start  421 end  423 total  449           clock   87.8Hz
  720x400 (0x72)   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
-------------------------------------------------------------------------


Output of "get-edid 2>&1 | parse-edid > get-parse-edid.txt 2>&1" on
Ubuntu Oneric:

-------------------------------------------------------------------------
parse-edid: parse-edid version 2.0.0
parse-edid: EDID checksum failed - data is corrupt. Continuing anyway.
parse-edid: first bytes don't match EDID version 1 header
parse-edid: do not trust output (if any).

        # EDID version 32 revision 118
Section "Monitor"
        Identifier "NQ@:6765"
        VendorName "NQ@"
        ModelName "NQ@:6765"
        # DPMS capabilities: Active off:yes  Suspend:yes  Standby:no

        Mode    "623x1902"      # vfreq 121.269Hz, hfreq 368.295kHz
                DotClock        269.960000
                HTimings        623 671 783 733
                VTimings        1902 1908 1945 3037
        EndMode
        Mode    "613x1637"      # vfreq 16.090Hz, hfreq 65.018kHz
                DotClock        263.780000
                HTimings        613 729 787 4057
                VTimings        1637 1655 1671 4041
        EndMode
        Mode    "1652x1900"     # vfreq 48.351Hz, hfreq 134.078kHz
                DotClock        269.900000
                HTimings        1652 1757 1867 2013
                VTimings        1900 1906 1913 2773
        EndMode
        Mode    "1568x1908"     # vfreq 19.585Hz, hfreq 49.374kHz
                DotClock        259.560000
                HTimings        1568 1686 1783 5257
                VTimings        1908 1930 1949 2521
        EndMode
EndSection
-------------------------------------------------------------------------

Oneric kernel is:

$ uname -a
Linux dancer 3.0.0-26-generic #43-Ubuntu SMP Tue Sep 25 17:19:22 UTC 2012
x86_64 x86_64 x86_64 GNU/Linux

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