Bug 87198

Summary: [Regression] xorg-server: black screen with Git commit c1455f76c6
Product: xorg Reporter: Kai <kai>
Component: Server/GeneralAssignee: Xorg Project Team <xorg-team>
Status: RESOLVED FIXED QA Contact: Xorg Project Team <xorg-team>
Severity: major    
Priority: medium    
Version: git   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:

Description Kai 2014-12-10 17:47:37 UTC 
In light of the security announcement I wanted to update from commit c52a2b1eba to c1455f76c6. But with the latter my screen stays black. In fact, the connector (DVI-D) seems to get disabled, since my monitor shows the "searching for signal" screen, where it cycles through its inputs. I can't even access the TTYs.

There is no error logged to Xorg.0.log nor dmesg. Reverting (via SSH from another machine) to a build of c52a2b1eba gives me back access to the TTYs and a KDE session without a reboot. Just launching the older X.org is enough.

The failing stack was (Debian testing as a base, fully updated):
GPU: Hawaii PRO [Radeon R9 290] (ChipID = 0x67b1)
Mesa: Git:master/a2f2eebfdf
libdrm: Git:master/00847fa48b
LLVM: SVN:trunk/r223220 (3.6 devel)
X.Org: Git:master/c1455f76c6
Linux: Git:<git://people.freedesktop.org/~agd5f/linux>:drm-next-3.19-wip/f66d9660a0
Firmware: <http://people.freedesktop.org/~agd5f/radeon_ucode/>
> 9e05820da42549ce9c89d147cf1f8e19  hawaii_ce.bin
> c8bab593090fc54f239c8d7596c8d846  hawaii_mc.bin
> 3618dbb955d8a84970e262bb2e6d2a16  hawaii_me.bin
> c000b0fc9ff6582145f66504b0ec9597  hawaii_mec.bin
> 0643ad24b3beff2214cce533e094c1b7  hawaii_pfp.bin
> ba6054b7d78184a74602fd81607e1386  hawaii_rlc.bin
> 11288f635737331b69de9ee82fe04898  hawaii_sdma.bin
> 284429675a5560e0fad42aa982965fc2  hawaii_smc.bin
libclc: Git:master/229064524b
DDX: Git:master/c9f8f642fd

Let me know, if you need something else.
Comment 1 Michel Dänzer 2014-12-11 02:43:41 UTC 
Probably the glamor ABI breakage fixed by http://lists.x.org/archives/xorg-devel/2014-December/044808.html . If so, you should see a message about glamor_egl_destroy_textured_pixmap being unresolved in the Xorg stderr output.
Comment 2 Michel Dänzer 2014-12-11 03:38:44 UTC 
Please reopen if it still happens with this fix:

commit 91651e7c15892aa846fc406fbb13b37f094dd3f0
Author: Michel Dänzer <michel.daenzer@amd.com>
Date:   Wed Dec 10 16:21:44 2014 +0900

    glamor: Reinstate glamor_(egl_)destroy_textured_pixmap
    
    They are part of the ABI.
Comment 3 Kai 2014-12-11 15:56:09 UTC 
(In reply to Michel Dänzer from comment #2)
> Please reopen if it still happens with this fix:
> 
> commit 91651e7c15892aa846fc406fbb13b37f094dd3f0
> Author: Michel Dänzer <michel.daenzer@amd.com>
> Date:   Wed Dec 10 16:21:44 2014 +0900
> 
>     glamor: Reinstate glamor_(egl_)destroy_textured_pixmap
>     
>     They are part of the ABI.

I can confirm, that this commit fixes this bug. Thanks Michel!

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