| Summary: | [BYT] DP monitor fail to be lighted up on every interlaced scanning resolution | ||||||
|---|---|---|---|---|---|---|---|
| Product: | DRI | Reporter: | liulei <lei.a.liu> | ||||
| Component: | DRM/Intel | Assignee: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
| Status: | CLOSED FIXED | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
| Severity: | normal | ||||||
| Priority: | medium | CC: | christophe.prigent, intel-gfx-bugs, jinxianx.guo | ||||
| Version: | unspecified | ||||||
| Hardware: | Other | ||||||
| OS: | Linux (All) | ||||||
| Whiteboard: | |||||||
| i915 platform: | BYT | i915 features: | display/DP | ||||
| Attachments: |
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Here is my latest test result. "Lighted up" below mean DP monitor can be lighted up on interlaced resolution. And the same as "Not lighted up". +----------------------------------------------+ |time | February | March | April | +----------------------------------------------+ |status | enable | disable | enable | +----------------------------------------------+ |result | lighted | | Fails to | | | (vertical is | |be lighted | | | compressed to | | up | | | 1/2 ) | | | +----------------------------------------------+ Bug scrub: Looks like same as https://bugs.freedesktop.org/show_bug.cgi?id=88963 Priority upadted to medium Please, try this patch on top of the latest drm-intel-nightly. It may solve the testdisplay issue you are experiencing. This bug is similar to https://bugs.freedesktop.org/show_bug.cgi?id=88963 Timeout, closing. Please reopen if the problem persists with latest kernels. |
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Created attachment 106294 [details] dmesg ==System Environment== -------------------------- I fail to find a good commit. Non-working platforms: Baytrail ==kernel== -------------------------- -nightly: 43df30da20447e2856b2761215ff274886a9f931 (fails) drm-intel-nightly: 2014y-09m-12d-15h-35m-20s UTC integration manifest -queued: 648fb42d1e77cf90cddea2b1cf1f4ac4453e65e6 (fails) drm/i915: Extend BIOS stolen mem handling to all platform -fixes: e76c8c5979021483a3a6b480cfe360c644a403c0 (fails) drm/i915: Fix SRC_COPY width on 830/845g ==Bug detailed description== ----------------------------- Monitor Manufacturer: ASUS Monitor mode veision : PA238Q DP monitor fail to be lighted up on every interlaced scanning resolution. Resolution details: 1920x1080i 60 1920 2008 2052 2200 1080 1084 1094 1125 0x15 0x40 74250 1920x1080i 60 1920 2008 2052 2200 1080 1084 1094 1125 0x15 0x40 74176 1920x1080i 50 1920 2448 2492 2640 1080 1084 1094 1125 0x15 0x40 74250 ==Reproduce steps== ---------------------------- 1. ./testdisplay -a 2. check interlaced scanning resolution