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  • #1433
Closed (duplicated) (duplicated)
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Issue created Sep 25, 2019 by Bugzilla Migration User@bugzilla-migration

VDPAU broken in radeonsi by commit 0692ae34

Submitted by Aidan Thornton

Assigned to Default DRI bug account

Link to original bug (#111806)

Description

VDPAU support appears to be broken on radeonsi as of git commit 0692ae34 "ac: move ac_get_num_physical_sgprs into radeon_info". Trying to play back videos using MPV 0.29.1 with it enabled fails with the following error within libvdpau_radeon: "LLVM failed to compile a shader correctly: SGPR:VGPR usage is 56:20, but the hw limit is 0:0" (or 0:256 without the subsequent commit that does the same thing with ac_get_num_physical_vgprs). I assume that information about the limits isn't getting set properly for some reason.

Tested with a Radeon HD 7770 on Linux 5.2 with mpv 0.29.1, ffmpeg 4.2.1, the radeon kernel driver, and xf86-video-ati 19.0.1.

Version: git

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