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SubjectRe: Problems with AGPGART/drm and X11 2D-acceleration (i8xx)
On Fri, Mar 06, 2009 at 03:33:16PM -0500, Alan Stern wrote:
> I've been experiencing problems running X with recent kernels.
> Without 2D-acceleration everything seems to work okay, but scrolling is
> uncomfortably slow. With acceleration enabled...
>
> Under 2.6.28.7, X fails during startup and exits with an error message.
> Dmesg says:
>
> [ 63.129319] [drm] Initialized drm 1.1.0 20060810
> [ 63.196690] pci 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
> [ 63.196704] pci 0000:00:02.0: setting latency timer to 64
> [ 63.197679] [drm] Initialized i915 1.6.0 20080730 on minor 0
> [ 63.457664] [drm:i915_gem_object_bind_to_gtt] *ERROR* GTT full, but LRU list empty
> [ 63.457673] [drm:i915_gem_object_pin] *ERROR* Failure to bind: -12
>
> Under 2.6.29-rc6, X hangs during startup. I have to reboot the machine
> to recover. Dmesg says only:
>
> [ 57.001997] [drm] Initialized drm 1.1.0 20060810
> [ 57.121966] pci 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
> [ 57.121980] pci 0000:00:02.0: setting latency timer to 64
> [ 57.127739] [drm] Initialized i915 1.6.0 20080730 on minor 0
>
> Relevant device info:
>
> # lspci -v -s 0:2.0
> 00:02.0 VGA compatible controller: Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device (rev 03) (prog-if 00 [VGA controller])
> Subsystem: Intel Corporation Device 5247
> Flags: bus master, fast devsel, latency 0, IRQ 16
> Memory at f0000000 (32-bit, prefetchable) [size=128M]
> Memory at ffa80000 (32-bit, non-prefetchable) [size=512K]
> Capabilities: [d0] Power Management version 1
> Kernel modules: intelfb
>
> I use XAA because the default EXA method causes X to hang during
> startup even under 2.6.27.

There is a warning about XAA on other chipsets here:
http://marc.info/?l=linux-kernel&m=123536263005071&w=1 but I don't know
if that would apply in your case.

I notice gem messages in your logs... are you using a new enough Intel
Xorg driver? What version are you currently using (see
http://marc.info/?l=dri-devel&m=123578388323843&w=1 for details)? If
it's not new enough you will have to disable kernel mode setting (e.g.
via nomodesetting on the kernel command line).

Finally there is a warning about 8xx being notoriously problematic here:
http://marc.info/?l=linux-kernel&m=123585107823835&w=1 .

HTH.

--
Sitsofe | http://sucs.org/~sits/


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