hybrid-graphics-linux team mailing list archive

[mtron <mtron@xxxxxx>]

On 12/27/2010 05:29 PM, Raphael Metzler wrote:
> echo "\OSGS 0x03" > /proc/acpi/call

Very cool! Thanks :)

I can confirm that this works here on my 1015pn too.

I also did some fiddling with "hot switching" intel & nvidia without a
reboot today but unfortunately the i915 driver used for the GMA 3150 has
some nasty memory leaks so the kernel devs disabled the possibility to
rmmod the intel driver in 2.6.35. (see drivers/gpu/drm/i915/i915_dma.c ) [1]

This leaves hot switching currently out of reach for me. Any bleeding
edge kernel riders here that could test if rmmoding the intel driver in
current .37 rc's is enabled again?

The second strange thing i came across is that Xorg loads the nvidia glx
module when the binary driver is installed but the intel driver is set
in xorg.conf. (see the Xorg.log at [2]) When temporarily removing the
nvidia-glx.so symlink the binary driver still interferes with libGL.

Did this also occur in your testings or is this a ubuntu specific bug? I
did some digging in their bug tracker and came across lp bug #267269 [3]
which is marked as invalid ...

To enable glx for the intel driver i purged all nvidia* packages from my
system what worked initially but after a reboot (in mode 3) i got a hard
lockup (only reisub helped here) when i tried to disable the nvidia chip
:(. So disabling the nvidia chip only works here if the nvidia binary
driver is installed. Rather strange.

Could you guys please test this behavior to see if this is a ubuntu /
debian specific glitch or has a deeper cause?

Thanks!
mtron

[1] https://patchwork.kernel.org/patch/241181/
[2] http://pastebin.com/xPrdpGiP
[3]
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/267269