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Message #34031
[Bug 1388928] Re: high CPU load and system caught in loop when external monitor connected
The problem stays after updating to Kubuntu 14.10.
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https://bugs.launchpad.net/bugs/1388928
Title:
high CPU load and system caught in loop when external monitor
connected
Status in “xorg” package in Ubuntu:
New
Bug description:
When connecting my notebook to a specific projector and changing to
the external display with xrandr (xrandr --output VGA1 --mode 1024x768
--output LVDS1 --mode 1024x768), the system is caught in some kind of
loop, with high CPU load and the graphical user interface getting
unresponsive (mouse cursor jumps every few seconds). The problem
"disappears" when the external display is turned off.
The Xorg log file contains (repeating endlessly):
[ 10219.665] (II) intel(0): EDID vendor "NEC", prod id 31181
[ 10219.665] (II) intel(0): Using hsync ranges from config file
[ 10219.665] (II) intel(0): Using vrefresh ranges from config file
[ 10219.665] (II) intel(0): Printing DDC gathered Modelines:
[ 10219.665] (II) intel(0): Modeline "1280x800"x0.0 83.50 1280 1352 1480 1680 800 803 809 831 -hsync +vsync (49.7 kHz eP)
[ 10219.665] (II) intel(0): Modeline "800x600"x0.0 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz e)
[ 10219.665] (II) intel(0): Modeline "800x600"x0.0 36.00 800 824 896 1024 600 601 603 625 +hsync +vsync (35.2 kHz e)
[ 10219.665] (II) intel(0): Modeline "640x480"x0.0 31.50 640 656 720 840 480 481 484 500 -hsync -vsync (37.5 kHz e)
[ 10219.665] (II) intel(0): Modeline "640x480"x0.0 31.50 640 664 704 832 480 489 492 520 -hsync -vsync (37.9 kHz e)
[ 10219.665] (II) intel(0): Modeline "640x480"x0.0 30.24 640 704 768 864 480 483 486 525 -hsync -vsync (35.0 kHz e)
[ 10219.665] (II) intel(0): Modeline "640x480"x0.0 25.18 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz e)
[ 10219.665] (II) intel(0): Modeline "720x400"x0.0 28.32 720 738 846 900 400 412 414 449 -hsync +vsync (31.5 kHz e)
[ 10219.665] (II) intel(0): Modeline "1280x1024"x0.0 135.00 1280 1296 1440 1688 1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
[ 10219.665] (II) intel(0): Modeline "1024x768"x0.0 78.75 1024 1040 1136 1312 768 769 772 800 +hsync +vsync (60.0 kHz e)
[ 10219.665] (II) intel(0): Modeline "1024x768"x0.0 75.00 1024 1048 1184 1328 768 771 777 806 -hsync -vsync (56.5 kHz e)
[ 10219.665] (II) intel(0): Modeline "1024x768"x0.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz e)
[ 10219.665] (II) intel(0): Modeline "832x624"x0.0 57.28 832 864 928 1152 624 625 628 667 -hsync -vsync (49.7 kHz e)
[ 10219.665] (II) intel(0): Modeline "800x600"x0.0 49.50 800 816 896 1056 600 601 604 625 +hsync +vsync (46.9 kHz e)
[ 10219.665] (II) intel(0): Modeline "800x600"x0.0 50.00 800 856 976 1040 600 637 643 666 +hsync +vsync (48.1 kHz e)
[ 10219.665] (II) intel(0): Modeline "1152x864"x0.0 108.00 1152 1216 1344 1600 864 865 868 900 +hsync +vsync (67.5 kHz e)
[ 10219.665] (II) intel(0): Modeline "1280x960"x0.0 108.00 1280 1376 1488 1800 960 961 964 1000 +hsync +vsync (60.0 kHz e)
[ 10219.665] (II) intel(0): Modeline "1400x1050"x0.0 121.75 1400 1488 1632 1864 1050 1053 1057 1089 -hsync +vsync (65.3 kHz e)
[ 10219.665] (II) intel(0): Modeline "1600x1200"x0.0 162.00 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync (75.0 kHz e)
[ 10219.665] (II) intel(0): Modeline "1280x1024"x0.0 108.00 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync (64.0 kHz e)
[ 10219.665] (II) intel(0): Modeline "1280x720"x60.0 74.48 1280 1336 1472 1664 720 721 724 746 -hsync +vsync (44.8 kHz e)
[ 10219.665] (II) intel(0): Modeline "1600x900"x60.0 119.00 1600 1696 1864 2128 900 901 904 932 -hsync +vsync (55.9 kHz e)
[ 10219.665] (II) intel(0): Modeline "1920x1080"x60.0 172.80 1920 2040 2248 2576 1080 1081 1084 1118 -hsync +vsync (67.1 kHz e)
[ 10220.237] (II) intel(0): EDID vendor "NEC", prod id 31181
[ 10220.237] (II) intel(0): Using hsync ranges from config file
[ 10220.237] (II) intel(0): Using vrefresh ranges from config file
[ 10220.237] (II) intel(0): Printing DDC gathered Modelines:
[ 10220.237] (II) intel(0): Modeline "1280x800"x0.0 83.50 1280 1352 1480 1680 800 803 809 831 -hsync +vsync (49.7 kHz eP)
[ 10220.237] (II) intel(0): Modeline "800x600"x0.0 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz e)
[ 10220.237] (II) intel(0): Modeline "800x600"x0.0 36.00 800 824 896 1024 600 601 603 625 +hsync +vsync (35.2 kHz e)
[ 10220.237] (II) intel(0): Modeline "640x480"x0.0 31.50 640 656 720 840 480 481 484 500 -hsync -vsync (37.5 kHz e)
[ 10220.237] (II) intel(0): Modeline "640x480"x0.0 31.50 640 664 704 832 480 489 492 520 -hsync -vsync (37.9 kHz e)
[ 10220.237] (II) intel(0): Modeline "640x480"x0.0 30.24 640 704 768 864 480 483 486 525 -hsync -vsync (35.0 kHz e)
[ 10220.237] (II) intel(0): Modeline "640x480"x0.0 25.18 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz e)
[ 10220.237] (II) intel(0): Modeline "720x400"x0.0 28.32 720 738 846 900 400 412 414 449 -hsync +vsync (31.5 kHz e)
[ 10220.237] (II) intel(0): Modeline "1280x1024"x0.0 135.00 1280 1296 1440 1688 1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
[ 10220.237] (II) intel(0): Modeline "1024x768"x0.0 78.75 1024 1040 1136 1312 768 769 772 800 +hsync +vsync (60.0 kHz e)
[ 10220.237] (II) intel(0): Modeline "1024x768"x0.0 75.00 1024 1048 1184 1328 768 771 777 806 -hsync -vsync (56.5 kHz e)
[ 10220.237] (II) intel(0): Modeline "1024x768"x0.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz e)
[ 10220.237] (II) intel(0): Modeline "832x624"x0.0 57.28 832 864 928 1152 624 625 628 667 -hsync -vsync (49.7 kHz e)
[ 10220.237] (II) intel(0): Modeline "800x600"x0.0 49.50 800 816 896 1056 600 601 604 625 +hsync +vsync (46.9 kHz e)
[ 10220.237] (II) intel(0): Modeline "800x600"x0.0 50.00 800 856 976 1040 600 637 643 666 +hsync +vsync (48.1 kHz e)
[ 10220.237] (II) intel(0): Modeline "1152x864"x0.0 108.00 1152 1216 1344 1600 864 865 868 900 +hsync +vsync (67.5 kHz e)
[ 10220.237] (II) intel(0): Modeline "1280x960"x0.0 108.00 1280 1376 1488 1800 960 961 964 1000 +hsync +vsync (60.0 kHz e)
[ 10220.237] (II) intel(0): Modeline "1400x1050"x0.0 121.75 1400 1488 1632 1864 1050 1053 1057 1089 -hsync +vsync (65.3 kHz e)
[ 10220.237] (II) intel(0): Modeline "1600x1200"x0.0 162.00 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync (75.0 kHz e)
[ 10220.237] (II) intel(0): Modeline "1280x1024"x0.0 108.00 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync (64.0 kHz e)
[ 10220.237] (II) intel(0): Modeline "1280x720"x60.0 74.48 1280 1336 1472 1664 720 721 724 746 -hsync +vsync (44.8 kHz e)
[ 10220.237] (II) intel(0): Modeline "1600x900"x60.0 119.00 1600 1696 1864 2128 900 901 904 932 -hsync +vsync (55.9 kHz e)
[ 10220.237] (II) intel(0): Modeline "1920x1080"x60.0 172.80 1920 2040 2248 2576 1080 1081 1084 1118 -hsync +vsync (67.1 kHz e)
[ 10226.737] (II) intel(0): EDID vendor "NEC", prod id 31181
[ 10226.737] (II) intel(0): Using hsync ranges from config file
[ 10226.737] (II) intel(0): Using vrefresh ranges from config file
[ 10226.737] (II) intel(0): Printing DDC gathered Modelines:
[ 10226.737] (II) intel(0): Modeline "1280x800"x0.0 83.50 1280 1352 1480 1680 800 803 809 831 -hsync +vsync (49.7 kHz eP)
[ 10226.737] (II) intel(0): Modeline "800x600"x0.0 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz e)
[ 10226.737] (II) intel(0): Modeline "800x600"x0.0 36.00 800 824 896 1024 600 601 603 625 +hsync +vsync (35.2 kHz e)
[ 10226.737] (II) intel(0): Modeline "640x480"x0.0 31.50 640 656 720 840 480 481 484 500 -hsync -vsync (37.5 kHz e)
[ 10226.737] (II) intel(0): Modeline "640x480"x0.0 31.50 640 664 704 832 480 489 492 520 -hsync -vsync (37.9 kHz e)
[ 10226.737] (II) intel(0): Modeline "640x480"x0.0 30.24 640 704 768 864 480 483 486 525 -hsync -vsync (35.0 kHz e)
[ 10226.737] (II) intel(0): Modeline "640x480"x0.0 25.18 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz e)
[ 10226.737] (II) intel(0): Modeline "720x400"x0.0 28.32 720 738 846 900 400 412 414 449 -hsync +vsync (31.5 kHz e)
[ 10226.737] (II) intel(0): Modeline "1280x1024"x0.0 135.00 1280 1296 1440 1688 1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
[ 10226.737] (II) intel(0): Modeline "1024x768"x0.0 78.75 1024 1040 1136 1312 768 769 772 800 +hsync +vsync (60.0 kHz e)
[ 10226.737] (II) intel(0): Modeline "1024x768"x0.0 75.00 1024 1048 1184 1328 768 771 777 806 -hsync -vsync (56.5 kHz e)
[ 10226.737] (II) intel(0): Modeline "1024x768"x0.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz e)
[ 10226.737] (II) intel(0): Modeline "832x624"x0.0 57.28 832 864 928 1152 624 625 628 667 -hsync -vsync (49.7 kHz e)
[ 10226.737] (II) intel(0): Modeline "800x600"x0.0 49.50 800 816 896 1056 600 601 604 625 +hsync +vsync (46.9 kHz e)
[ 10226.737] (II) intel(0): Modeline "800x600"x0.0 50.00 800 856 976 1040 600 637 643 666 +hsync +vsync (48.1 kHz e)
[ 10226.737] (II) intel(0): Modeline "1152x864"x0.0 108.00 1152 1216 1344 1600 864 865 868 900 +hsync +vsync (67.5 kHz e)
[ 10226.737] (II) intel(0): Modeline "1280x960"x0.0 108.00 1280 1376 1488 1800 960 961 964 1000 +hsync +vsync (60.0 kHz e)
[ 10226.737] (II) intel(0): Modeline "1400x1050"x0.0 121.75 1400 1488 1632 1864 1050 1053 1057 1089 -hsync +vsync (65.3 kHz e)
[ 10226.737] (II) intel(0): Modeline "1600x1200"x0.0 162.00 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync (75.0 kHz e)
[ 10226.737] (II) intel(0): Modeline "1280x1024"x0.0 108.00 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync (64.0 kHz e)
[ 10226.737] (II) intel(0): Modeline "1280x720"x60.0 74.48 1280 1336 1472 1664 720 721 724 746 -hsync +vsync (44.8 kHz e)
[ 10226.737] (II) intel(0): Modeline "1600x900"x60.0 119.00 1600 1696 1864 2128 900 901 904 932 -hsync +vsync (55.9 kHz e)
[ 10226.737] (II) intel(0): Modeline "1920x1080"x60.0 172.80 1920 2040 2248 2576 1080 1081 1084 1118 -hsync +vsync (67.1 kHz e)
Syslog contains these lines:
Nov 3 17:50:51 XXXXXXX dbus[726]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)
Nov 3 17:50:51 XXXXXXX dbus[726]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Nov 3 17:52:30 XXXXXXX kernel: [10067.836664] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 245
Nov 3 17:52:30 XXXXXXX kernel: [10067.836672] Raw EDID:
Nov 3 17:52:30 XXXXXXX kernel: [10067.836677] 00 ff ff ff ff ff ff 00 38 a3 cd 79 01 01 01 01
Nov 3 17:52:30 XXXXXXX kernel: [10067.836679] 25 14 01 03 0f 00 00 78 2a 7c dd a1 5e 4f a9 23
Nov 3 17:52:30 XXXXXXX kernel: [10067.836682] 0e 47 58 bf ef 80 71 4f 81 40 90 40 a9 40 81 80
Nov 3 17:52:30 XXXXXXX kernel: [10067.836684] 81 c0 a9 c1 ff ff ff ff ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.836686] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.836689] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.836691] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.836693] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.849004] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 2
Nov 3 17:52:30 XXXXXXX kernel: [10067.849010] Raw EDID:
Nov 3 17:52:30 XXXXXXX kernel: [10067.849013] 00 ff ff ff ff ff ff 00 38 a3 cd 79 01 01 01 01
Nov 3 17:52:30 XXXXXXX kernel: [10067.849015] 25 14 01 03 0f 01 ff ff ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.849017] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.849020] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.849022] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.849024] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.849027] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.849029] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.861308] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 75
Nov 3 17:52:30 XXXXXXX kernel: [10067.861313] Raw EDID:
Nov 3 17:52:30 XXXXXXX kernel: [10067.861316] 00 ff ff ff ff ff ff 00 38 a3 cd 79 01 01 01 01
Nov 3 17:52:30 XXXXXXX kernel: [10067.861318] 25 14 01 03 0f 00 00 78 2a 7c dd a1 5e 4f a9 23
Nov 3 17:52:30 XXXXXXX kernel: [10067.861321] 0e 47 58 bf ef 80 71 4f 81 40 90 40 a9 40 81 80
Nov 3 17:52:30 XXXXXXX kernel: [10067.861323] 81 c0 a9 c0 d1 c0 9e 20 00 90 51 20 1f 30 48 80
Nov 3 17:52:30 XXXXXXX kernel: [10067.861325] 36 00 00 00 00 00 00 1c 00 00 00 fd 00 30 78 18
Nov 3 17:52:30 XXXXXXX kernel: [10067.861328] 64 11 00 0a 41 ff ff ff ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.861330] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.861333] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.873643] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 130
Nov 3 17:52:30 XXXXXXX kernel: [10067.873648] Raw EDID:
Nov 3 17:52:30 XXXXXXX kernel: [10067.873651] 00 ff ff ff ff ff ff 00 ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.873653] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.873655] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.873658] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.873660] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.873663] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.873665] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.873667] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Nov 3 17:52:30 XXXXXXX kernel: [10067.873675] i915 0000:00:02.0: VGA-1: EDID block 0 invalid.
Nov 3 17:52:30 XXXXXXX kernel: [10068.583543] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:52:31 XXXXXXX kernel: [10069.101498] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:52:33 XXXXXXX kernel: [10071.257747] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:52:36 XXXXXXX kernel: [10074.279801] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:52:38 XXXXXXX kernel: [10076.053107] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:52:43 XXXXXXX wpa_supplicant[1173]: wlan0: CTRL-EVENT-SCAN-STARTED
Nov 3 17:52:44 XXXXXXX kernel: [10082.410901] xrandr[3400]: segfault at 2c ip 0804a00b sp bf904df0 error 4 in xrandr[8048000+c000]
Nov 3 17:52:46 XXXXXXX kernel: [10084.206987] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:52:46 XXXXXXX kernel: [10084.251982] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:52:47 XXXXXXX kernel: [10085.096379] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:52:47 XXXXXXX kernel: [10085.668160] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:52:48 XXXXXXX wpa_supplicant[1173]: nl80211: send_and_recv->nl_recvmsgs failed: -33
Nov 3 17:52:50 XXXXXXX kernel: [10088.771639] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:52:52 XXXXXXX kernel: [10090.467130] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:53:02 XXXXXXX kernel: [10100.112901] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:53:05 XXXXXXX kernel: [10103.159608] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:53:05 XXXXXXX kernel: [10103.505162] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:53:07 XXXXXXX kernel: [10105.414435] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:53:07 XXXXXXX kernel: [10105.670495] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:53:09 XXXXXXX kernel: [10107.234431] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:53:09 XXXXXXX kernel: [10107.757700] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:53:10 XXXXXXX kernel: [10108.411594] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:53:11 XXXXXXX kernel: [10109.182628] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:53:15 XXXXXXX kernel: [10113.007676] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:53:15 XXXXXXX kernel: [10113.482325] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:53:16 XXXXXXX kernel: [10113.857971] i2c i2c-1: sendbytes: NAK bailout.
Nov 3 17:53:20 XXXXXXX kernel: [10118.038460] i2c i2c-1: sendbytes: NAK bailout.
This error is critical since I cannot give presentations in certain
situations.
Connecting another projector, the system worked perfectly.
I also tried different external resolutions, but this did not seem to
matter.
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