REGRESSION: video driver stuck after screen blank

2008-05-17 Thread Stephen Hemminger
After the screensaver does it's idle shut off of the monitor, it never
comes back. This is a new problem and only shows up post 2.6.25.

Console log messages:
Note: this message should be WARN_ON_ONCE() since it fills the disk!

May 16 14:12:16 extreme kernel: [17192412.800268] trying to get vblank count 
for disabled pipe 0
May 16 14:12:16 extreme kernel: [17192412.800268] trying to get vblank count 
for disabled pipe 0
May 16 14:12:16 extreme kernel: [17192412.822388] trying to get vblank count 
for disabled pipe 0
May 16 14:12:16 extreme kernel: [17192412.838770] trying to get vblank count 
for disabled pipe 0
May 16 14:12:16 extreme kernel: [17192412.858769] trying to get vblank count 
for disabled pipe 0
May 16 14:12:16 extreme kernel: [17192412.878769] trying to get vblank count 
for disabled pipe 0
May 16 14:12:16 extreme kernel: [17192412.898769] trying to get vblank count 
for disabled pipe 0
May 16 14:12:16 extreme kernel: [17192412.918769] trying to get vblank count 
for disabled pipe 0
May 16 14:12:16 extreme kernel: [17192412.938769] trying to get vblank count 
for disabled pipe 0
May 16 14:12:16 extreme kernel: [17192412.962768] trying to get vblank count 
for disabled pipe 0
May 16 14:12:16 extreme kernel: [17192412.980269] trying to get vblank count 
for disabled pipe 0
May 16 14:12:16 extreme kernel: [17192412.998769] trying to get vblank count 
for disabled pipe 0
May 16 14:12:16 extreme kernel: [17192413.018769] trying to get vblank count 
for disabled pipe 0
May 16 14:12:16 extreme kernel: [17192413.038769] trying to get vblank count 
for disabled pipe 0
May 16 14:12:16 extreme kernel: [17192413.058769] trying to get vblank count 
for disabled pipe 0


Video involved is:

00:02.0 VGA compatible controller: Intel Corporation 82G33/G31 Express 
Integrated Graphics Controller (rev 02) (prog-if 00 [VGA controller])
Subsystem: Elitegroup Computer Systems Unknown device 2639
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast TAbort- TAbort- 
MAbort- SERR- PERR-
Latency: 0
Interrupt: pin A routed to IRQ 16
Region 0: Memory at fe98 (32-bit, non-prefetchable) [size=512K]
Region 1: I/O ports at cc00 [size=8]
Region 2: Memory at d000 (32-bit, prefetchable) [size=256M]
Region 3: Memory at fe80 (32-bit, non-prefetchable) [size=1M]
Capabilities: [90] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 
Enable-
Address:   Data: 
Capabilities: [d0] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA 
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-


I suspect:

Committer: Dave Airlie [EMAIL PROTECTED]  2008-04-26 01:01:07
Parent: 7b832b56bd971348329c3f4c753ca0abfdf3a3d1 (drm/i915: Handle tiled 
buffers in vblank tasklet)
Branches: master, origin
Follows: v2.6.25
Precedes: v2.6.26-rc1

drm/vbl rework: rework how the drm deals with vblank.

Other Authors: Michel Dänzer [EMAIL PROTECTED]
mga: Ian Romanick [EMAIL PROTECTED]
via: Thomas Hellstrom thomas-at-tungstengraphics-dot-com

This re-works the DRM internals to provide a better interface for drivers
to expose vblank on multiple crtcs.

It also includes work done by Michel on making i915 triple buffering and 
pageflipping work properly.

Signed-off-by: Dave Airlie [EMAIL PROTECTED]


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How to get software rendering

2008-05-17 Thread Philipp Klaus Krause
I tried (as documented in the wiki at
http://dri.freedesktop.org/wiki/TestingAndDebugging)

export LIBGL_SOFTWARE_RENDERING=1
glxinfo

and got

OpenGL renderer string: Mesa DRI Intel(R) 965GM 4.1.3002

Philipp

P.S.:
I know such questions should go to dri-users, but I couldn't get an
answear there.

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Re: [Mesa3d-dev] How to get software rendering

2008-05-17 Thread Michel Dänzer
On Sat, 2008-05-17 at 18:23 +0200, Philipp Klaus Krause wrote: 
 I tried (as documented in the wiki at
 http://dri.freedesktop.org/wiki/TestingAndDebugging)
 
 export LIBGL_SOFTWARE_RENDERING=1

I hadn't heard of that before; according to grep it's ffb driver
specific.

All current drivers seem to support the driconf option no_rast. As with
all driconf options, it can be overridden with an environment variable
of the same name, so try setting

no_rast=true


-- 
Earthling Michel Dänzer   |  http://tungstengraphics.com
Libre software enthusiast |  Debian, X and DRI developer


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