* [Bug 75620] New: [NVAA] nouveau: tearing regression
@ 2014-02-28 19:56 bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
[not found] ` <bug-75620-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
0 siblings, 1 reply; 2+ messages in thread
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ @ 2014-02-28 19:56 UTC (permalink / raw)
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
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https://bugs.freedesktop.org/show_bug.cgi?id=75620
Priority: medium
Bug ID: 75620
Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Summary: [NVAA] nouveau: tearing regression
QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org
Severity: normal
Classification: Unclassified
OS: All
Reporter: alexanders83-S0/GAf8tV78@public.gmane.org
Hardware: Other
Status: NEW
Version: unspecified
Component: Driver/nouveau
Product: xorg
Created attachment 94915
--> https://bugs.freedesktop.org/attachment.cgi?id=94915&action=edit
git bisect log
I noticed mplayer showing some tearing starting from kernel version v3.10.7
which wasn't there in v3.8.
I could bisect it down to commit 1d7c71a3e2f77336df536855b0efd2dc5bdeb41b
(drm/nouveau/disp: port vblank handling to event interface).
Unfortunately c7d73f6a8ad71f9d9f58c86981322c6e48093a4f introduced a
NULL-pointer dereference regression. Luckily I found
526810adb93554e17bdb83023a01cfa8758960b2 which fixes that. Doing the bisect I
had to cherry-pick that each time until I tried commit 1d7c71a. At this commit
I additionally need to cherry-pick c8f28f8.
After adding those 2 commits I could run mplayer again and could clearly see
the tearing effect.
My hardware:
02:00.0 VGA compatible controller: NVIDIA Corporation C77 [GeForce 8300] (rev
a2) (prog-if 00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. Device 82f2
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 20
Region 0: Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at f0000000 (64-bit, prefetchable) [size=128M]
Region 3: Memory at fa000000 (64-bit, prefetchable) [size=32M]
Region 5: I/O ports at ec00 [size=128]
Expansion ROM at feae0000 [disabled] [size=128K]
Capabilities: [60] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Kernel driver in use: nouveau
Kernel modules: nouveau
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2014-02-28 19:56 [Bug 75620] New: [NVAA] nouveau: tearing regression bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
[not found] ` <bug-75620-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
2014-03-26 22:05 ` [Bug 75620] " bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
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