Bug 37525

Summary:

[G45] testdisplay can't show all modes with DVI interface

Product:

DRI

Reporter:

bo.b.wang

Component:

DRM/Intel

Assignee:

Intel GFX Bugs mailing list <intel-gfx-bugs>

Status:

CLOSED INVALID

QA Contact:

Intel GFX Bugs mailing list <intel-gfx-bugs>

Severity:

normal

Priority:

medium

CC:

jbarnes

Version:

XOrg git

Hardware:

Other

OS:

All

Whiteboard:

i915 platform:

i915 features:

Attachments:

Description	Flags
drm.debug=0xe and intel_reg_dumper	none
drm.debug=0xe dmesg info	none
intel_reg_dumper	none
Fontconfig warning dmesg info	none

Description bo.b.wang 2011-05-23 19:20:30 UTC

System Environment:
--------------------------
kernel: (drm-intel-next)commit:9e3c256d7d56a12a3242222945ce8e6347f93fa0
port: DVI port
platform: G45

Bug detailed description:
-------------------------
when do "testdisplay -a 10 -s 10", it can't show all listed mode.Exactly some modes Below 1024x768@60 can't be displayed and screen is black.At the same time "testdisplay -a 10 -s 10" done,the screen can't be lighted.

Reproduce steps:
----------------
1. DVI port
2. testdisplay -a 10 -s 10

Comment 1 Chris Wilson 2011-05-25 08:25:38 UTC

An intel_reg_dumper after running testdisplay would be useful in conjunction with a drm.debug=0xe dmesg.

Comment 2 bo.b.wang 2011-05-25 18:15:38 UTC

Created attachment 47167 [details]
drm.debug=0xe  and intel_reg_dumper

Hello Chris. Attachment are  dmesg and intel_reg_dumper info

Comment 3 bo.b.wang 2011-05-26 00:51:06 UTC

Created attachment 47175 [details]
drm.debug=0xe  dmesg info

Comment 4 bo.b.wang 2011-05-26 00:52:14 UTC

Created attachment 47176 [details]
 intel_reg_dumper

Comment 5 bo.b.wang 2011-08-11 22:45:54 UTC

Hello, this time I do testdisplay in the same machine and same DVI port on kernel commit as follow:

Kernel: (drm-intel-fixes)d7d39e20cc5e44f915d6c5687f65839632c44381
Some additional commit info:
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date:   Wed Aug 3 12:59:21 2011 -0700

    drm/i915: enable/disable spread spectrum as needed on mode set

and exists the same issue.

and 

[root@x-g45b tests]# ./testdisplay -a 10
  1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x48 148500
  1280x1024 75 1280 1296 1440 1688 1024 1025 1028 1066 0x5 0x40 135000
  1280x1024 60 1280 1328 1440 1688 1024 1025 1028 1066 0x5 0x40 108000
  1152x864 75 1152 1216 1344 1600 864 865 868 900 0x5 0x40 108000
  1024x768 75 1024 1040 1136 1312 768 769 772 800 0x5 0x40 78800
  1024x768 60 1024 1048 1184 1344 768 771 777 806 0xa 0x40 65000
Fontconfig warning: Directory/file mtime in the future. New fonts may not be detected
  800x600 75 800 816 896 1056 600 601 604 625 0x5 0x40 49500
  800x600 60 800 840 968 1056 600 601 605 628 0x5 0x40 40000
  640x480 75 640 656 720 840 480 481 484 500 0xa 0x40 31500
  640x480 60 640 656 752 800 480 490 492 525 0xa 0x40 25200
  720x400 70 720 738 846 900 400 412 414 449 0x6 0x40 28320

Comment 6 bo.b.wang 2011-08-11 22:47:37 UTC

Created attachment 50151 [details]
Fontconfig warning dmesg info

Comment 7 Daniel Vetter 2012-11-13 12:48:37 UTC

Oops, this bug here is old. Ping for a retest on latest dinq. If the hw disappeared meanwhile I think we just have to close this.

Comment 8 Jesse Barnes 2012-12-11 21:17:21 UTC

timeout

Comment 9 Guang Yang 2012-12-12 05:11:25 UTC

The issue still occurs, such as the bug47034.

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