| Summary: | [ILK] Some modes can't light up on DP display | ||||||||||
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| Product: | DRI | Reporter: | shui yangwei <yangweix.shui> | ||||||||
| Component: | DRM/Intel | Assignee: | shui yangwei <yangweix.shui> | ||||||||
| Status: | CLOSED FIXED | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||||||
| Severity: | major | ||||||||||
| Priority: | medium | CC: | bingx.a.yan, przanoni | ||||||||
| Version: | unspecified | ||||||||||
| Hardware: | Other | ||||||||||
| OS: | All | ||||||||||
| Whiteboard: | |||||||||||
| i915 platform: | i915 features: | ||||||||||
| Attachments: |
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Description
shui yangwei
2012-12-27 03:50:24 UTC
New more modes can not light up on this commit. Environment: ------------------------- Kernel: (drm-intel-next-queued)fa22c28522f53b63c1b287da1b69dc5700eaa09f Some additional commit info: Author: Ben Widawsky <ben@bwidawsk.net> Date: Fri Jan 18 19:18:19 2013 -0800 drm/i915: re-add dropped dma_mask configuration Description: ------------------------- Testing these modes below, monitor can't light up.: CRTS(3):[0] 1920x1080 50 1920 2448 2492 2640 1080 1084 1089 1125 0x5 0x40 148500 CRTS(3):[0] 1600x1200 60 1600 1664 1856 2160 1200 1201 1204 1250 0x5 0x40 162000 CRTS(3):[0] 1400x1050 60 1400 1488 1632 1864 1050 1053 1057 1089 0x6 0x40 121750 CRTS(3):[0] 1440x900 75 1440 1536 1688 1936 900 903 909 942 0x6 0x40 136750 Testing these modes below, monitor can light up be in a certain probability,and after light up it also be a bug in bug 54687: CRTS(3):[0] 1920x1080i 50 1920 2448 2492 2640 1080 1084 1094 1125 0x15 0x40 74250 CRTS(3):[0] 1920x1080i 60 1920 2008 2052 2200 1080 1084 1094 1125 0x15 0x40 74250 I also add the dmesg called modes-cannot-lightup.dmesg Created attachment 73356 [details]
modes-cannot-lightup.dmesg
Hi Does the following patch fix the problem? https://bugs.freedesktop.org/attachment.cgi?id=74877 Thanks, Paulo (In reply to comment #3) > Hi > > Does the following patch fix the problem? > > https://bugs.freedesktop.org/attachment.cgi?id=74877 > > Thanks, > Paulo I retest with this patch and the issue is be fixed. Patch landed in upstream drm-next tree (and is now also included in -nightly): commit 196e077dc165a307efbd9e7569f81bbdbcf18f65 Author: Paulo Zanoni <paulo.r.zanoni@intel.com> Date: Fri Feb 15 13:36:27 2013 -0200 drm: don't add inferred modes for monitors that don't support them Created attachment 78912 [details] dmesg: some dp display mode can't light up Environment: ------------------------ Kernel: (drm-intel-next-queued)2b87f3b1bab1df814057ff551f4fc49c22a7fde9 Some additional commit info: Author: Jesse Barnes <jbarnes@virtuousgeek.org> Date: Thu May 2 15:30:47 2013 -0700 drm/i915: fix Haswell pfit power well check v2 Description: ------------------------ In this round testing, this bug is reproduced, when test display with DP mode, the resolution below can't light up. [0] 1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x48 148500 [1] 1920x1080 50 1920 2448 2492 2640 1080 1084 1089 1125 0x5 0x40 148500 [2] 1920x1080 60 1920 1968 2000 2080 1080 1083 1088 1110 0x9 0x40 138500 [3] 1920x1080i 50 1920 2448 2492 2640 1080 1084 1094 1125 0x15 0x40 74250 [4] 1920x1080i 60 1920 2008 2052 2200 1080 1084 1094 1125 0x15 0x40 74250 [5] 1600x1200 60 1600 1664 1856 2160 1200 1201 1204 1250 0x5 0x40 162000 [7] 1280x1024 75 1280 1296 1440 1688 1024 1025 1028 1066 0x5 0x40 135000 Hm, that patch is included in -fixes/dinq now, so the regression should be a new bug. Can you please file a new bug for this (this one here is getting messy), with a reference to this one? Also please try to bisect where this bug has been introduced, thanks. Closing old verified. |
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