| Priority | medium |
|---|---|
| Bug ID | 71083 |
| Assignee | dri-devel@lists.freedesktop.org |
| Summary | (struct drm_encoder_helper_funcs)->mode_set not re-called after display (and EDID) change |
| Severity | normal |
| Classification | Unclassified |
| OS | All |
| Reporter | zajec5@gmail.com |
| Hardware | Other |
| Status | NEW |
| Version | unspecified |
| Component | DRM/other |
| Product | DRI |
I use my DCE5 Barts (HD69xx) with AV-receiver Onkyo TX-SR605 and one of the following displays: 1) TV Sony Bravia KDL-52X3500 2) Projector Epson EH-TW6100 My problem is that when I change display connected to the Onkyo's output EDID changes, but drm doesn't call mode_set as long as I use the same resolution. To force drm to call mode_set I've to change resolution (xrandr --output HDMI-0 --mode X) and then swtich back to the mode I want. While the display seems to be working fine without that mode_set call, the audio engine doesn't. As part of the modesetting handler we read ELD-related info from EDID and write it to the audio engine of the GPU. Without this happening I can't play correctly audio (because also sees info about previous device, not the current one). I think mode_set should be called every time EDID changes. Is that right? In case someone's curious: 1) EDID with Onkyo + Sony TV: 00ffffffffffff003dcb610700000000 0011010380a05a780a0dc9a057479827 12484c21080081800101010101010101 010101010101023a801871382d40582c 450040846300001e011d007251d01e20 6e28550040846300001e000000fc0054 582d53523630350a20202020000000fd 00303e0e460f000a2020202020200185 02034c705c1f03041213051420071610 15110206010f1e0b1a191d0e0a242625 2335097f070f7f071707503f06c05706 005f7e01671e00834f00006c030c0012 00b82dc000000000e3050301023a80d0 72382d40102c458040846300001e011d 00bc52d01e20b828554040846300001e 00000000000000000000000000000078 2) EDID with Onkyo + Epson projector: 00ffffffffffff004ca333d000000000 0c150104952616780aa0558d515a962a 1c505400000001010101010101010101 0101010101016a4d80a07038fc413020 36007ed710000018d49a80a07038fc41 302036007ed710000038000000fc0053 414d53554e470a2020202020000000fc 00313733485430322d4330310a200035
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