https://bugs.freedesktop.org/show_bug.cgi?id=56202
Priority: medium
Bug ID: 56202
Assignee: [email protected]
Summary: [regression][kms] Clock rework causes kms boot
regression for NV4E (v3.7-rc1, 3.6+nouveau)
QA Contact: [email protected]
Severity: normal
Classification: Unclassified
OS: Linux (All)
Reporter: [email protected]
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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