http://bugs.freedesktop.org/show_bug.cgi?id=11787
Summary: radeon driver: X hangs on startup with
Product: DRI
Version: XOrg CVS
Platform: x86 (IA32)
OS/Version: FreeBSD
Status: NEW
Severity: normal
Priority: medium
Component: DRM modules
AssignedTo: dri-devel@lists.sourceforge.net
ReportedBy: [EMAIL PROTECTED]
my machine is IBM ThinkPad T43p [ATI FireGL M24 GL 3154 (PCIE)], but other
people report this with different hardware, the issue seems to be the same as
reported here:
http://lists.freebsd.org/pipermail/freebsd-questions/2003-September/019065.html
here:
http://lists.freebsd.org/pipermail/freebsd-x11/2006-May/002926.html
here:
http://archive.netbsd.se/?ml=freebsd-multimedia&a=2006-02&t=1781223
and here:
http://forums.pcbsd.org/viewtopic.php?p=43974&sid=f5e235d25315c50a686e5e8e4dd799ba
...among other places.
what seems to be happening is that card's FIFO gets full and X.org gets stuck
calling DRM_IOCTL_RADEON_CP_IDLE that keeps returning EBUSY and never succeeds.
what is interesting, though, is that in 2 out of [many] tries X.org did
actually manage to start and worked fine from then on until next reboot. so it
seems to be intitialization issue. perhaps a race of some kind?
anyway, i recompiled the kernel with DRM_DEBUG, enabled RADEON_FIFO_DEBUG in
radeon_cp.c and got some debug info[1] which may be useful. complete Xorg.0.log
is also available[2].
the visible effect is that the video mode changes, but the screen stays blank.
machine is responsive, sshd works, but switching virtual consoles is not
possible.
i am very much willing to assist with applying patches and providing more info.
[1] http://rojer.pp.ru/misc/radeon_DRM_DEBUG.log
[2] http://rojer.pp.ru/misc/radeon_drm_Xorg.0.log
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