From: Andreas Schwab <hidden> Date: 2012-07-23 07:04:39
Benjamin Herrenschmidt [off-list ref] writes:
This updates the g5 defconfig to include nouveau instead of nvidiafb
(which works much better nowadays, in fact the latter crashes on modern
distros),
Does it? Nvidiafb is super stable here, whereas nouveau has a lot of
problems.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
From: Benjamin Herrenschmidt <benh@kernel.crashing.org> Date: 2012-07-23 07:06:19
On Mon, 2012-07-23 at 09:04 +0200, Andreas Schwab wrote:
Benjamin Herrenschmidt [off-list ref] writes:
quoted
This updates the g5 defconfig to include nouveau instead of nvidiafb
(which works much better nowadays, in fact the latter crashes on modern
distros),
Does it? Nvidiafb is super stable here, whereas nouveau has a lot of
problems.
nvidiafb crashes solid here when X gets involved.
What do you mean by "lots of problems" ? I've been using nouveau for a
long time now on my two quad g5's including 3D, gnome-shell etc...
without anything more than a glitch or two on the edge of windows...
Also can you remind me what machine model and what video card variant ?
Cheers,
Ben.
From: Benjamin Herrenschmidt <benh@kernel.crashing.org> Date: 2012-07-23 07:39:27
On Mon, 2012-07-23 at 09:27 +0200, Andreas Schwab wrote:
Benjamin Herrenschmidt [off-list ref] writes:
quoted
What do you mean by "lots of problems" ?
For example, only half of the screen is drawn. There is a bug open
about this, but no comments.
quoted
Also can you remind me what machine model and what video card variant ?
PowerMac7,3 with NV34 [GeForce FX 5200 Ultra] (rev a1).
Ah ok, I haven't seen these problems.
Ben, any idea ? I was trying to make nouveau the default instead of
nvidiafb on G5's but it seems like some old G5's with those NV34 aren't
happy.
BTW. Are we trying to use AGP on these things ? If yes, I would suggest
we just blacklist AGP on all powermac unless specifically requested via
a kernel command line arg. That would be half of the problems solved...
I have access to an iMac G5 with an old 5200 variant as well which I
could dig out & try if there's anything I can do to help debug that.
(On my G5s it's all PCIe so that problem doesn't happen).
Cheers,
Ben.
From: Andreas Schwab <hidden> Date: 2012-07-31 08:09:26
It's even worse. Since ec9b3a9de6b2a8a08c5250b466db92adf82b8d65
(drm/nouveau/i2c: resume use of i2c-algo-bit, rather than custom stack)
the system is just powered off in the middle of booting. Since nothing
is calling pmu_request with PMU_SHUTDOWN it must be some kind of bit
banging that causes the PMU to freak out.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
On Mon, 2012-07-23 at 09:04 +0200, Andreas Schwab wrote:
quoted
Benjamin Herrenschmidt[off-list ref] writes:
quoted
This updates the g5 defconfig to include nouveau instead of nvidiafb
(which works much better nowadays, in fact the latter crashes on modern
distros),
Does it? Nvidiafb is super stable here, whereas nouveau has a lot of
problems.
nvidiafb crashes solid here when X gets involved.
What do you mean by "lots of problems" ? I've been using nouveau for a
long time now on my two quad g5's including 3D, gnome-shell etc...
without anything more than a glitch or two on the edge of windows...
Also can you remind me what machine model and what video card variant ?
Cheers,
Ben.
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nouveau doesn't work on my machine. There is a bug in Xorg project
https://bugs.freedesktop.org/show_bug.cgi?id=21273 It need to make
a workaround for correct initialization of video card. Unfortunately,
I am not skilled enough for it.
Nvidiafb worked fine for me, but I am not using it.
Andrey