[Bug 56202] New: [regression][kms] Clock rework causes kms boot regression for NV4E (v3.7-rc1, 3.6+nouveau)

* [Bug 56202] New: [regression][kms] Clock rework causes kms boot regression for NV4E (v3.7-rc1, 3.6+nouveau)
@ 2012-10-19 20:21 bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
       [not found] ` <bug-56202-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
  0 siblings, 1 reply; 7+ messages in thread
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ @ 2012-10-19 20:21 UTC (permalink / raw)
  To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW

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https://bugs.freedesktop.org/show_bug.cgi?id=56202

          Priority: medium
            Bug ID: 56202
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
           Summary: [regression][kms] Clock rework causes kms boot
                    regression for NV4E (v3.7-rc1, 3.6+nouveau)
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: ronald645-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: git
         Component: Driver/nouveau
           Product: xorg

Created attachment 68815
  --> https://bugs.freedesktop.org/attachment.cgi?id=68815&action=edit
v3.6.0+ @ the commit that caused the regression

The following commit causes KMS initialisation to result in a scrambled screen
with mostly blue elements. The screen responds to changes based on actual
content (e.g. system booting, lightdm starting).

drm/nouveau/clock: pull in the implementation from all over the place

I have tested and verified this regression on a 3.6 tree and the recent v3.7
tree pulled from git.kernel.org.

Below you will find some more data about my VGA card.

Attached you will find two dmesg output logs (don't know if they differ):

both are from the v3.7-rc1 tree (they are noted as 3.6.0+ in the logs)
dmesg-good.txt @ the commit before the one that caused the regression
dmesg-bad.txt @ the commit that caused the regression

00:05.0 0300: 10de:0244 (rev a2) (prog-if 00 [VGA controller])
    Subsystem: 103c:30b7
00:05.0 VGA compatible controller: NVIDIA Corporation C51 [GeForce Go 6150]
(rev a2) (prog-if 00 [VGA controller])
    Subsystem: Hewlett-Packard Company Presario V6133CL
    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 18
    Region 0: Memory at b2000000 (32-bit, non-prefetchable) [size=16M]
    Region 1: Memory at c0000000 (64-bit, prefetchable) [size=256M]
    Region 3: Memory at b1000000 (64-bit, non-prefetchable) [size=16M]
    [virtual] Expansion ROM at 40000000 [disabled] [size=128K]
    Capabilities: [48] 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: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
        Address: 0000000000000000  Data: 0000
    Kernel driver in use: nouveau

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