[PREVIEW] Nouveau on FreeBSD (Take 2)

[Robert Noland]

On Mon, 2009-03-23 at 00:15 +0300, Anonymous wrote:
> Robert Noland <rnoland at FreeBSD.org> writes:
> 
> > Ok, this patch should work on NV50 chips also.
> >
> > What you get is EXA and Xv.
> >
> > You still need:
> >
> > A recent -CURRENT or -STABLE.
> >
> > git master of libdrm and xf86-video-nouveau.
> >
> > This patch.
> >
> > Things I've figured out since the last patch...
> >
> > On NV50 class hardware you need to have a compositing manager running
> > for Xv to work.  That means xcompmgr, metacity with composite enabled,
> > xfce (rumored to work as well, haven't tried).  If your running Gnome
> > with metacity, open gconf-editor and go to apps->metacity->general and
> > check the composite box.
> [...]
> >
> > http://people.freebsd.org/~rnoland/drm-nouveau-032109.patch
> >
> > robert.
> 
> Here is my Xorg.log - http://pastebin.com/m6fab6feb (Xserver is from git master)
> and kernel messages logged via syslog DRM_DEBUG - http://pastebin.com/m263af8da
> They are with successfull `xcompmgr -a' run
> 
> - Compared to previous patch now I get
> 
> @@ -237,6 +237,7 @@
>  (II) NOUVEAU(0): nv50_output_detect is called.
>  (II) NOUVEAU(0): NV50ConnectorDDCDetect is called.
>  (II) NOUVEAU(0): I2C device "DVI-0:ddc2" registered at address 0xA0.
> +(II) NOUVEAU(0): I2C device "DVI-0:DDC control interface" registered at address 0x6E.
>  (II) NOUVEAU(0): Detected a Digital output on DVI-0
>  (II) NOUVEAU(0): Found a suitable output, index 1
>  (II) NOUVEAU(0): nv50_output_detect is called.
> @@ -382,8 +383,8 @@
>  	[4] -1	0	0x00000000 - 0x000000ff (0x100) IX[B]
>  (==) NOUVEAU(0): Write-combining range (0xa0000,0x10000) was already clear
>  (II) NOUVEAU(0): Allocated 128MiB VRAM for framebuffer + offscreen pixmaps, at offset 0x20000000
> -(II) NOUVEAU(0): AGPGART: 512MiB available
> -(EE) NOUVEAU(0): Unable to allocate GART memory
> +(II) NOUVEAU(0): AGPGART: 32MiB available
> +(II) NOUVEAU(0): GART: Allocated 16MiB as a scratch buffer
>  (II) NOUVEAU(0): [drm] Using the DRM lock SAREA also for drawables.
>  (II) NOUVEAU(0): [drm] framebuffer handle = 0xe0000000
>  (II) NOUVEAU(0): [drm] added 1 reserved context for kernel
> 
> - This error in Xorg.log is still present
> 
>       (II) NOUVEAU(0): [DRI] installation complete
>       (EE) NOUVEAU(0): [dri] unable to reference front buffer: -19

Ok, update your libdrm... this was fixed in the last few days.

robert.

>   Should I ignore it?
> 
> - Got these errors in dmesg
> 
>       error: [drm:pid1424:drm_alloc_resource] *ERROR* Couldn't find resource 0x2
> 
> and
> 
>       info: [drm] PGRAPH_ERROR - nSource:info: [drm] PROTECTION_ERRORinfo: [drm] DMA_R_PROTECTIONinfo: [drm] , nStatus:info: [drm] 
>       info: [drm] PGRAPH_ERROR - Ch 2/2 Class 0x8297 Mthd 0x15e0 Data 0x00000000:0x00000000
>       error: [drm:pid11:nv50_pgraph_irq_handler] *ERROR* magic set 1:
>       error: [drm:pid11:nv50_pgraph_irq_handler] *ERROR* 	0x00408900: 0x80000000
>       error: [drm:pid11:nv50_pgraph_irq_handler] *ERROR* 	0x00408904: 0xfdb76b7b
> 
>   Should I ignore them?
> 
> - Scrolling (shift+pgup/pgdn) in xterm is *slower* with DRM than
>   without it but still faster than with NoAccel. I'm using xterm with
>   TTF font (DejaVu Sans Mono). It's yet more noticeable when scrolling
>   in less(1)/screen(1) when redrawing affects whole screen not half.
>   Besides, there is more flickering with highly updating cli apps when
>   using DRM. However, launching xcompmgr fixes this sluggishness.
> 
> - XVideo works fine
> 
> - EXAPixmaps uses DRI2 and works fine. I wasn't able to test with xcompmgr.
> 
> - Launching `xcompmgr -a' is tricky. Most of the time it just leaves
>   screen in unusable state, it's not possible to switch to console or
>   move pointer. I want to help debug this one. Here are logs:
>   http://pastebin.com/m1ca3fc2f
>   http://pastebin.com/m579d358e
-- 
Robert Noland <rnoland at FreeBSD.org>
FreeBSD
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