[Bug 56986] xf86-video-ati 7.0.0.-1: segmentation fault

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Nov 15 23:59:07 PST 2012


--- Comment #7 from foobarnix at mailmetrash.com ---
Radeon driver hangs here. X starts but suffers intermittent segfaulting. The
machine never segfaults in terminal (without X running).

Early KMS, zero-nada-nil-no power saving or sleep stuff. That's all switched
off from BIOS, up through terminal, up to X. Yes, I physically switch off the
PC at shutdown. I'm not seeing any flavor of sleep mode.

The LCD screen just blanks every now and then; no recovery. Can't get out of X
or see terminals. Keyboard is 100% unresponsive. A segfault would explain it.

That's what happens now. Under previous settings, I would get a freeze, but the
screen would not go blank. It would just hang in place.

I tried different AGP and KMS things. I got regular hangs at 8x, so dropped to
4x, which is stable, except videos. Then it's a dice roll. If I set to PCI mode
(AGP speed -1) then it's more stable, but videos look garbage.

I had to turn off OpenGL in cairo composite manager and use the cairo back end.
OpenGL hanged regularly. It's an old machine but ran for many years just fine.
I am fairly confident this problem is a video driver and/or settings issue.
Here's the data dump. Thanks for your hard work on radeon.

# uname -a
Linux fooboxen 3.6.6-1-ARCH #1 SMP PREEMPT Mon Nov 5 13:14:42 CET 2012 i686
# cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-linux root=UUID=b23c3f71-eb3c-4dd2-bf19-1d4ba621de4e
ro acpi=off noswap noresume radeon.agpmode=4 radeon.modeset=1 rootfstype=ext4
# lspci -nn | grep VGA
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices [AMD] nee ATI
RV350 AS [Radeon 9550] [1002:4153]
# lsmod | grep radeon
radeon                788284  1 
i2c_algo_bit            4583  1 radeon
drm_kms_helper         28941  1 radeon
ttm                    46763  1 radeon
drm                   180042  3 ttm,drm_kms_helper,radeon
i2c_core               16943  6
# pacman -Q xorg-server xf86-video-ati
xorg-server 1.13.0-4
xf86-video-ati 1:7.0.0-1
# cat /etc/X11/xorg.conf.d/10-ati-radeon-9550.conf
Section "Device"
  Identifier  "DEVICE ATI Radeon 9550"
  Driver      "radeon"
  Option      "AGPMode"                 "4"
  Option      "AGPFastWrite"            "no"
  Option      "AccelMethod"             "EXA"
  Option      "MigrationHeuristic"      "greedy"
  Option      "AccelDFS"                "true"
  Option      "EnablePageFlip"          "false"
  Option      "EnableDepthMoves"        "true"

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