Messages in this thread | | | Date | Wed, 29 Apr 2009 08:49:47 +0100 | Subject | Re: 2.6.30-rc2 + xorg-intel-2.7.0 + DRM_I915_KMS = corruption | From | Alex Bennee <> |
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2009/4/28 Jesse Barnes <jbarnes@virtuousgeek.org>: > On Tue, 28 Apr 2009 06:37:10 +0100 > Alex Bennee <kernel-hacker@bennee.com> wrote: > >> 2009/4/27 Florian Mickler <florian@mickler.org>: >> > On Sun, 19 Apr 2009 07:27:35 +0100 >> > Alex Bennee <kernel-hacker@bennee.com> wrote: >> > >> >> Heading the warnings in the menuconfig I did try and ensure I have >> >> all the up to date parts of user-space. With KMS enabled GDM >> >> starts up but then corrupts the display with vertical lines. >> >> Disabling the kernel config and everything starts up fine, UXA >> >> acceleration seems OK and the speed of compiz is finally back up >> >> to ~60fps thanks to the A17 fix. >> >> >> >> Am I missing another bit of user space for KMS to work properly? >> >> Apparently I was missing a key bit and had to enable fbdev from the >> command line: >> >> kernel /kernel-2.6-drm root=/dev/sda2 >> video=intelfb:mode=1440x900-32@75,accel,hwcursor >> >> However I still saw the same corruption kick in when GDM started. I >> couldn't switch mode either which kinda defeated the point. > > The above seems to indicate that you have some FB drivers built into > your kernel; that will likely fail in weird ways. Try disabling all > the FB drivers, but keep CONFIG_FRAMEBUFFER_CONSOLE enabled. Then when > you load the i915 driver you should get a nice console.
Ahh, I was under the (mistaken) impression that the kernel frame-buffer drivers where linked to the console frame buffer driver and needed for it to work well. Disabling them all and I do indeed get a lovely framebuffer console on boot up but still the same corruption when GDM starts. I'm also still not able to switch back to the console like I can with KMS disabled.
I've attached my .config, a dump of the dmesg of the failing case and a broken and working Xorg.log (working being no KMS and the Linus tree rather than the intel-drm tree, although I have tested the Linus tree fails with KMS enabled in the same way).
-- Alex, homepage: http://www.bennee.com/~alex/ CV: http://www.bennee.com/~alex/cv.php [unhandled content-type:application/octet-stream][unhandled content-type:application/octet-stream][unhandled content-type:application/octet-stream][unhandled content-type:application/octet-stream] | |