Radeon XPRESS 200M (RC410) - system lockup on DRI with 2.6.32-rc3 and Fedora 10 userspace

[Alex Deucher]

On Wed, Oct 7, 2009 at 11:18 AM, Alex Villací­s Lasso
<a_villacis at palosanto.com> wrote:
> http://bugzilla.kernel.org/show_bug.cgi?id=14331
>
> I am testing kernel releases on a machine with the following radeon
> chipset as reported by lspci -v:
>
> 01:05.0 VGA compatible controller: ATI Technologies Inc RC410 [Radeon
> Xpress 200] (prog-if 00 [VGA controller])
>    Subsystem: Intel Corporation Device d600
>    Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 17
>    Memory at d8000000 (32-bit, prefetchable) [size=128M]
>    I/O ports at ee00 [size=256]
>    Memory at fdef0000 (32-bit, non-prefetchable) [size=64K]
>    [virtual] Expansion ROM at fde00000 [disabled] [size=128K]
>    Capabilities: [50] Power Management version 2
>    Capabilities: [80] Message Signalled Interrupts: Mask- 64bit-
> Count=1/1 Enable-
>    Kernel modules: radeon
>
> On all of these tests, I use the Fedora 10 distro with kernel
> modesetting disabled and with the latest updates:
>
> xorg-x11-server-common-1.5.3-17.fc10.i386
> xorg-x11-server-Xorg-1.5.3-17.fc10.i386
> xorg-x11-drv-ati-6.10.0-2.fc10.i386
> mesa-dri-drivers-7.2-0.15.fc10.i386
> mesa-libOSMesa-7.2-0.15.fc10.i386
> mesa-libGL-7.2-0.15.fc10.i386
> libdrm-2.4.0-0.21.fc10.i386
>
> I know these versions do not follow the latest developments from xorg,
> but up to vanilla kernel 2.6.31.1, I had somewhat decent DRI and Compiz
> support. So I expected that the changes to radeon kernel support would
> continue to work with the old userspace. However, with 2.6.32-rc3 (and
> now 2.6.32-rc2), I get a system lockup with a black screen and an
> unresponsive keyboard when X starts up. The keyboard leds do not blink,
> so this makes me think that the kernel is caught in a loop instead of
> having a kernel panic. Opened ssh sessions into the machine also become
> unresponsive. When checking the xorg logs, the log stops at the line
> "drmOpenDevice: node name is /dev/dri/card0".
>
> Adding Option "DRI" "off" to xorg.conf allows me to start up X, but I
> lose DRI and compiz.
>
> I would like your opinion about the following issues:
> * Should I expect DRI to continue working for radeon in a setup with a
> newer kernel and old userspace?
> * Have any of you experienced anything similar with 2.6.32-rc2 onwards?

F10 and F11 radeon kernel and userspace are not compatible with
upstream.  Both need to be upgraded to use the latest bits.

Alex