[Bug 89832] New: [BSW] "testdisplay -a" shows different results on different monitors
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Tue Mar 31 00:40:27 PDT 2015
https://bugs.freedesktop.org/show_bug.cgi?id=89832
Bug ID: 89832
Summary: [BSW] "testdisplay -a" shows different results on
different monitors
Product: DRI
Version: unspecified
Hardware: Other
OS: All
Status: NEW
Severity: normal
Priority: medium
Component: DRM/Intel
Assignee: intel-gfx-bugs at lists.freedesktop.org
Reporter: jeff.zheng at intel.com
QA Contact: intel-gfx-bugs at lists.freedesktop.org
CC: intel-gfx-bugs at lists.freedesktop.org
Created attachment 114747
--> https://bugs.freedesktop.org/attachment.cgi?id=114747&action=edit
dmesg with ASUS PA238Q that has bad output
==System Environment==
--------------------------
HDMI monitor: ASUS PA238Q, ASUS VS239HR
BIOS: V59
Regression: No. This is the first time to compare two monitors in detail
Non-working platforms: BSW
==kernel==
--------------------------
-testing: drm-intel-testing-2015-03-27 (fails)
==Bug detailed description==
-----------------------------
When connected to HDMI monitor (and eDP diconnected) and run "testdisplay -a",
ASUS VS239HR shows good but ASUS PA238Q shows bad.
==Reproduce steps==
----------------------------
1. Disconnect eDP, Connect ASUS PA238Q with HDMI cable and boot
2. "testdisplay -a" shows fine on resolutions "1920x1080 60", 720x*, 640x*, but
shows black on other resolutions.
3. Connect ASUS VS239HR with HDMI cable and boot
4. "testdisplay -a" shows fine on most resolutions. There is resolution
"1680x1050 60" shows black, but it shows fine if I double check with
"testdisplay -o"
Below are details for step 2 and step 4.
Step 2: Below is all resolutions on ASUS PA238Q, and only default mode id 0 and
mode id > 30 shows fine. testdisplay shows black screen on mode id 1 - 30
CRTC(30):[0] 1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x48
148500
CRTC(30):[1] 1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x40
148352
CRTC(30):[2] 1920x1080i 60 1920 2008 2052 2200 1080 1084 1094 1125 0x15 0x40
74250
CRTC(30):[3] 1920x1080i 60 1920 2008 2052 2200 1080 1084 1094 1125 0x15 0x40
74176
CRTC(30):[4] 1920x1080 50 1920 2448 2492 2640 1080 1084 1089 1125 0x5 0x40
148500
CRTC(30):[5] 1920x1080i 50 1920 2448 2492 2640 1080 1084 1094 1125 0x15 0x40
74250
CRTC(30):[6] 1920x1080 30 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x40
74250
CRTC(30):[7] 1920x1080 30 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x40
74176
CRTC(30):[8] 1920x1080 25 1920 2448 2492 2640 1080 1084 1089 1125 0x5 0x40
74250
CRTC(30):[9] 1920x1080 24 1920 2558 2602 2750 1080 1084 1089 1125 0x5 0x40
74250
CRTC(30):[10] 1920x1080 24 1920 2558 2602 2750 1080 1084 1089 1125 0x5 0x40
74176
CRTC(30):[11] 1680x1050 60 1680 1728 1760 1840 1050 1053 1059 1080 0x9 0x40
119000
CRTC(30):[12] 1280x1024 75 1280 1296 1440 1688 1024 1025 1028 1066 0x5 0x40
135000
CRTC(30):[13] 1280x1024 60 1280 1328 1440 1688 1024 1025 1028 1066 0x5 0x40
108000
CRTC(30):[14] 1440x900 60 1440 1488 1520 1600 900 903 909 926 0x9 0x40 88750
CRTC(30):[15] 1280x960 60 1280 1376 1488 1800 960 961 964 1000 0x5 0x40 108000
CRTC(30):[16] 1152x864 75 1152 1216 1344 1600 864 865 868 900 0x5 0x40 108000
CRTC(30):[17] 1280x720 60 1280 1390 1430 1650 720 725 730 750 0x5 0x40 74250
CRTC(30):[18] 1280x720 60 1280 1390 1430 1650 720 725 730 750 0x5 0x40 74176
CRTC(30):[19] 1280x720 50 1280 1720 1760 1980 720 725 730 750 0x5 0x40 74250
CRTC(30):[20] 1440x576 50 1440 1464 1592 1728 576 581 586 625 0xa 0x40 54000
CRTC(30):[21] 1024x768 75 1024 1040 1136 1312 768 769 772 800 0x5 0x40 78800
CRTC(30):[22] 1024x768 70 1024 1048 1184 1328 768 771 777 806 0xa 0x40 75000
CRTC(30):[23] 1024x768 60 1024 1048 1184 1344 768 771 777 806 0xa 0x40 65000
CRTC(30):[24] 1440x480 60 1440 1472 1596 1716 480 489 495 525 0xa 0x40 54054
CRTC(30):[25] 1440x480 60 1440 1472 1596 1716 480 489 495 525 0xa 0x40 54000
CRTC(30):[26] 832x624 75 832 864 928 1152 624 625 628 667 0xa 0x40 57284
CRTC(30):[27] 800x600 75 800 816 896 1056 600 601 604 625 0x5 0x40 49500
CRTC(30):[28] 800x600 72 800 856 976 1040 600 637 643 666 0x5 0x40 50000
CRTC(30):[29] 800x600 60 800 840 968 1056 600 601 605 628 0x5 0x40 40000
CRTC(30):[30] 800x600 56 800 824 896 1024 600 601 603 625 0x5 0x40 36000
CRTC(30):[31] 720x576 50 720 732 796 864 576 581 586 625 0xa 0x40 27000
CRTC(30):[32] 720x480 60 720 736 798 858 480 489 495 525 0xa 0x40 27027
CRTC(30):[33] 720x480 60 720 736 798 858 480 489 495 525 0xa 0x40 27000
CRTC(30):[34] 640x480 75 640 656 720 840 480 481 484 500 0xa 0x40 31500
CRTC(30):[35] 640x480 67 640 704 768 864 480 483 486 525 0xa 0x40 30240
CRTC(30):[36] 640x480 60 640 656 752 800 480 490 492 525 0xa 0x40 25200
CRTC(30):[37] 640x480 60 640 656 752 800 480 490 492 525 0xa 0x40 25175
CRTC(30):[38] 720x400 70 720 738 846 900 400 412 414 449 0x6 0x40 28320
Step 4: Below is all resolutions on ASUS VS239HR, most resolutions are fine.
The resolution "1680x1050 60" (id) shows black screen when running "testdisplay
-a", but "testdisplay -o 41,6" shows fine:
[0] 1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x48 148500
[1] 1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x40 148352
[2] 1920x1080i 60 1920 2008 2052 2200 1080 1084 1094 1125 0x15 0x40 74250
[3] 1920x1080i 60 1920 2008 2052 2200 1080 1084 1094 1125 0x15 0x40 74176
[4] 1920x1080 50 1920 2448 2492 2640 1080 1084 1089 1125 0x5 0x40 148500
[5] 1920x1080i 50 1920 2448 2492 2640 1080 1084 1094 1125 0x15 0x40 74250
[6] 1680x1050 60 1680 1728 1760 1840 1050 1053 1059 1080 0x9 0x40 119000
[7] 1280x1024 75 1280 1296 1440 1688 1024 1025 1028 1066 0x5 0x40 135000
[8] 1280x1024 60 1280 1328 1440 1688 1024 1025 1028 1066 0x5 0x40 108000
[9] 1440x900 60 1440 1488 1520 1600 900 903 909 926 0x9 0x40 88750
[10] 1280x960 60 1280 1376 1488 1800 960 961 964 1000 0x5 0x40 108000
[11] 1280x800 60 1280 1328 1360 1440 800 803 809 823 0x9 0x40 71000
[12] 1152x864 75 1152 1216 1344 1600 864 865 868 900 0x5 0x40 108000
[13] 1280x720 60 1280 1390 1430 1650 720 725 730 750 0x5 0x40 74250
[14] 1280x720 60 1280 1390 1430 1650 720 725 730 750 0x5 0x40 74176
[15] 1280x720 50 1280 1720 1760 1980 720 725 730 750 0x5 0x40 74250
[16] 1440x576 50 1440 1464 1592 1728 576 581 586 625 0xa 0x40 54000
[17] 1024x768 75 1024 1040 1136 1312 768 769 772 800 0x5 0x40 78800
[18] 1024x768 70 1024 1048 1184 1328 768 771 777 806 0xa 0x40 75000
[19] 1024x768 60 1024 1048 1184 1344 768 771 777 806 0xa 0x40 65000
[20] 1440x480 60 1440 1472 1596 1716 480 489 495 525 0xa 0x40 54054
[21] 1440x480 60 1440 1472 1596 1716 480 489 495 525 0xa 0x40 54000
[22] 832x624 75 832 864 928 1152 624 625 628 667 0xa 0x40 57284
[23] 800x600 75 800 816 896 1056 600 601 604 625 0x5 0x40 49500
[24] 800x600 72 800 856 976 1040 600 637 643 666 0x5 0x40 50000
[25] 800x600 60 800 840 968 1056 600 601 605 628 0x5 0x40 40000
[26] 800x600 56 800 824 896 1024 600 601 603 625 0x5 0x40 36000
[27] 720x576 50 720 732 796 864 576 581 586 625 0xa 0x40 27000
[28] 720x480 60 720 736 798 858 480 489 495 525 0xa 0x40 27027
[29] 720x480 60 720 736 798 858 480 489 495 525 0xa 0x40 27000
[30] 640x480 75 640 656 720 840 480 481 484 500 0xa 0x40 31500
[31] 640x480 67 640 704 768 864 480 483 486 525 0xa 0x40 30240
[32] 640x480 60 640 656 752 800 480 490 492 525 0xa 0x40 25200
[33] 640x480 60 640 656 752 800 480 490 492 525 0xa 0x40 25175
[34] 720x400 70 720 738 846 900 400 412 414 449 0x6 0x40 28320
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