Bug#525619: xserver-xorg-video-intel: screen blank after returning to vt7

[Sanjoy Mahajan]

> I see you're running 2.6.37, and it looks like there were some more
> backlight fixes lately, so you might want to try latest 2.6.38-rc from
> experimental.

Thanks, I've just now looked at the shortlog entry related to the
backlight.  However, my backlight is fine: It turns off upon suspend and
turns on upon resume.  The problem is the display itself, which is blank
upon resume (maybe 1 time out of 10).

 seems similar.



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Bug#533090: Acknowledgement (xserver-xorg-video-intel: X server crashed, now virtual consoles not working)

[Sanjoy Mahajan]

I haven't seen the GPU hang recently (running testing/unstable).
Instead when it crashes after S3 resume, the screen is off but the
backlight is on (and the GPU s otherwise working fine).  See Bug#525619.



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Bug#525619: xserver-xorg-video-intel: screen blank after returning to vt7

[Sanjoy Mahajan]

> could we please get an update, with either squeeze or higher?

Alas, yes: I still see the problem.  It happens every couple days where
the screen is blank (but the backlight is on).  A few days ago I had
started filling out a new Debian bug report, but then got the hang
again, rebooted, and lost track of the report -- which I just found and
am appending the version info from it.

When the problem happens, the backlight is on but the screen is blank,
and I can do everything except see what is on the screen -- so I can
switch to vt1, log in as root, and cleanly reboot.  However, I found
nothing interesting in any of the log files, whether Xorg.0.log, the
syslog, xdm.log, or /var/log/messages.

Since then I've added "drm.debug=14 log_buf_len=16M" to all grub
boot-command lines (copied from a Fedora "debugging X" page).  I've also
prepared a script to run (typing blind and loggin in as root) when the
problem next happens in order to get more debugging info:

  d=/root/debug-blank-display
  mkdir -p $d
  dmesg > $d/dmesg.log
  cp -p /var/log/Xorg.0.log $d/
  mount -t debugfs none /sys/kernel/debug
  dd if=/dev/mem of=$d/gpu_rom.dd bs=64k skip=12 count=1
  intel_gpu_dump > $d/gpu_dump.log

Anything to add or subtract from that script?

And here's what was in the half-finished bug report from Feb 20:

Package: xserver-xorg-video-intel
Version: 2:2.14.0-4
Severity: normal

Every few days (so perhaps ten S3 suspend/resume cycles) the following
happens.  

-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 2.6.37 (SMP w/2 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages xserver-xorg-video-intel depends on:
ii  libc6 2.11.2-11  Embedded GNU C Library: Shared lib
ii  libdrm-intel1 2.4.23-3   Userspace interface to intel-speci
ii  libdrm2   2.4.23-3   Userspace interface to kernel DRM 
ii  libpciaccess0 0.12.1-1   Generic PCI access library for X
ii  libudev0  166-1  libudev shared library
ii  libx11-6  2:1.4.1-4  X11 client-side library
ii  libx11-xcb1   2:1.4.1-4  Xlib/XCB interface library
ii  libxcb-aux0   0.3.6-1utility libraries for X C Binding 
ii  libxcb-dri2-0 1.7-2  X C Binding, dri2 extension
ii  libxcb1   1.7-2  X C Binding
ii  libxext6  2:1.2.0-2  X11 miscellaneous extension librar
ii  libxfixes31:4.0.5-1  X11 miscellaneous 'fixes' extensio
ii  libxv12:1.0.6-1  X11 Video extension library
ii  libxvmc1  2:1.0.6-1  X11 Video extension library
ii  xserver-xorg-core [xorg-video 2:1.9.4-2  Xorg X server - core server




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Bug#606340: downgrading worked for me

[Sanjoy Mahajan]

Downgrading xserver-xorg-video-intel to 2.13.0-3 solved the same problem
for me (Thinkpad T60 with Intel 945GM graphics).  I suspected that it
would work based on the Debian Changelog entry for 2.13.0-4:

* Fail intel_pci_probe if we don't have a kernel mode setting driver.
  This allows the X server to fall back to the vesa driver instead.
 
I had messages about not finding the vesa driver.  (I'm sorry that I
didn't keep that Xorg log.)

-Sanjoy



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Bug#601732: xserver-xorg-video-intel: render error upon S3 wakeup

[Sanjoy Mahajan]

Package: xserver-xorg-video-intel
Version: 2:2.12.0+shadow-2
Severity: normal

This is the same problem I saw in
: Upon waking up from S3
sleep, the screen came back very close to black (with just enough
brightness that I could make out where my Emacs window was).  I'm
running vanilla 2.6.36.  The hardware is a Thinkpad T60 with Intel
graphics.

Here is the relevant piece from the syslog:

Oct 28 13:18:19 approx kernel: [175817.958246] render error detected, EIR: 
0x0010
Oct 28 13:18:19 approx kernel: [175817.958248] page table error
Oct 28 13:18:19 approx kernel: [175817.958250]   PGTBL_ER: 0x0012
Oct 28 13:18:19 approx kernel: [175817.958264] [drm:i915_report_and_clear_eir] 
*ERROR* EIR stuck: 0x0010, masking
Oct 28 13:18:19 approx kernel: [175817.958274] render error detected, EIR: 
0x0010
Oct 28 13:18:19 approx kernel: [175817.958276] page table error
Oct 28 13:18:19 approx kernel: [175817.958277]   PGTBL_ER: 0x0012

Soon after that, but before I rebooted, the xdm log got these messages:

Thu Oct 28 13:19:29 2010 xdm info (pid 1850): sourcing /etc/X11/xdm/Xreset
Thu Oct 28 13:19:32 2010 xdm info (pid 1850): sourcing /etc/X11/xdm/Xreset
*** glibc detected *** -:0 : double free or corruption (out): 
0x096039a0 ***
=== Backtrace: =
/lib/i686/cmov/libc.so.6(+0x6b281)[0xb74ba281]
/lib/i686/cmov/libc.so.6(+0x6cad8)[0xb74bbad8]
/lib/i686/cmov/libc.so.6(cfree+0x6d)[0xb74bebbd]
/lib/libpam.so.0(+0x7911)[0xb759c911]
/lib/libpam.so.0(+0x1e7a)[0xb7596e7a]
/lib/libpam.so.0(pam_end+0x39)[0xb7597a09]
-:0 [0x8052f1f]
-:0 [0x8053743]
-:0 [0x804fb80]
-:0 [0x804efaf]
-:0 [0x8050817]
/lib/i686/cmov/libc.so.6(__libc_start_main+0xe6)[0xb7465c76]
-:0 [0x804c571]
=== Memory map: 
08048000-08063000 r-xp  08:02 5063170/usr/bin/xdm
08063000-08065000 rw-p 0001b000 08:02 5063170/usr/bin/xdm
08065000-08066000 rw-p  00:00 0 
095a6000-09635000 rw-p  00:00 0  [heap]
b6fe2000-b6fff000 r-xp  08:02 2133642/lib/libgcc_s.so.1
b6fff000-b700 rw-p 0001c000 08:02 2133642/lib/libgcc_s.so.1
b700-b7021000 rw-p  00:00 0 
b7021000-b710 ---p  00:00 0 
b711a000-b7124000 r-xp  08:02 2134531
/lib/i686/cmov/libnss_files-2.11.2.so
b7124000-b7125000 r--p 9000 08:02 2134531
/lib/i686/cmov/libnss_files-2.11.2.so
b7125000-b7126000 rw-p a000 08:02 2134531
/lib/i686/cmov/libnss_files-2.11.2.so
b7126000-b712e000 r-xp  08:02 2134509
/lib/i686/cmov/libnss_nis-2.11.2.so
b712e000-b712f000 r--p 8000 08:02 2134509
/lib/i686/cmov/libnss_nis-2.11.2.so
b712f000-b713 rw-p 9000 08:02 2134509
/lib/i686/cmov/libnss_nis-2.11.2.so
b7147000-b714e000 r-xp  08:02 2134515/lib/i686/cmov/librt-2.11.2.so
b714e000-b714f000 r--p 6000 08:02 2134515/lib/i686/cmov/librt-2.11.2.so
b714f000-b715 rw-p 7000 08:02 2134515/lib/i686/cmov/librt-2.11.2.so
b715-b7165000 r-xp  08:02 2134513
/lib/i686/cmov/libpthread-2.11.2.so
b7165000-b7166000 r--p 00014000 08:02 2134513
/lib/i686/cmov/libpthread-2.11.2.so
b7166000-b7167000 rw-p 00015000 08:02 2134513
/lib/i686/cmov/libpthread-2.11.2.so
b7167000-b7169000 rw-p  00:00 0 
b7169000-b71a r-xp  08:02 9051679/lib/libdbus-1.so.3.4.0
b71a-b71a1000 r--p 00037000 08:02 9051679/lib/libdbus-1.so.3.4.0
b71a1000-b71a2000 rw-p 00038000 08:02 9051679/lib/libdbus-1.so.3.4.0
b71a2000-b71b5000 r-xp  08:02 2134532/lib/i686/cmov/libnsl-2.11.2.so
b71b5000-b71b6000 r--p 00012000 08:02 2134532/lib/i686/cmov/libnsl-2.11.2.so
b71b6000-b71b7000 rw-p 00013000 08:02 2134532/lib/i686/cmov/libnsl-2.11.2.so
b71b7000-b71b9000 rw-p  00:00 0 
b71be000-b71c4000 r-xp  08:02 2134501
/lib/i686/cmov/libnss_compat-2.11.2.so
b71c4000-b71c5000 r--p 6000 08:02 2134501
/lib/i686/cmov/libnss_compat-2.11.2.so
b71c5000-b71c6000 rw-p 7000 08:02 2134501
/lib/i686/cmov/libnss_compat-2.11.2.so
b71c6000-b71cf000 r-xp  08:02 2134546
/lib/security/pam_gnome_keyring.so
b71cf000-b71d rw-p 8000 08:02 2134546
/lib/security/pam_gnome_keyring.so
b71d-b71dc000 r-xp  08:02 2133614/lib/security/pam_unix.so
b71dc000-b71dd000 rw-p c000 08:02 2133614/lib/security/pam_unix.so
b71dd000-b71e9000 rw-p  00:00 0 
b71e9000-b71ed000 r-xp  08:02 5069232/usr/lib/libXfixes.so.3.1.0
b71ed000-b71ee000 rw-p 3000 08:02 5069232/usr/lib/libXfixes.so.3.1.0
b71ee000-b71f6000 r-xp  08:02 5064756/usr/lib/libXcursor.so.1.0.2
b71f6000-b71f7000 rw-p 7000 08:02 5064756/usr/lib/libXcursor.so.1.0.2
b71f8000-b71fa000 r-xp  08:02 5063710
/usr/lib/libck-connector.so.0.0.0
b71fa000-b71fb000 rw-p 1000 08:02 5063710
/usr/lib/libck-connector.so.0.0.0
b71fb000-b71fd000 r-xp  08:02 2131917
/lib/security/pam_ck_connector.so
b71fd000-b71fe000

Bug#589787: xserver-xorg-video-intel: render error and then server crashes

[Sanjoy Mahajan]

> Not sure it's going to help, but well, having an updated bug status
> would be nice.

For a week or so I've been running xserver-xorg-video-intel
2.12.0+shadow-2 (and shadow-1 for a week before that).  Good news: The
problem has not reappeared.



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Bug#589787: xserver-xorg-video-intel: render error and then server crashes

[Sanjoy Mahajan]

> Is this reproducible with 2.12.0 from experimental?

I am trying 2.12.0 now.  But I get several problems:

1. One time it wouldn't resume from S3 sleep.

2. Regularly the mouse does not work.

I'll try some more tests and see what I can reproduce and capture in the
log and be back in touch in a couple weeks.

-Sanjoy



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Bug#589787: xserver-xorg-video-intel: render error and then server crashes

[Sanjoy Mahajan]

> Is this reproducible with 2.12.0 from experimental?

I will try that.



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Bug#525619: xserver-xorg-video-intel: screen blank after returning to vt7

[Sanjoy Mahajan]

>> In both cases, the backlight was still on, but the screen was blank.
>> And switching back to vt1 or any other non-X vt, then back to vt7,
>> did not solve it.  However, putting the laptop into S3 sleep and then
>> resuming solved the problem.

> can you still reproduce this with latest intel driver and kernel (with
> kernel mode setting)?

I see a similar, perhaps identical problem.

Twice now (today and a few days ago), the laptop has woken up with the
screen almost completely black.  I can barely see the windows, but the
laptop is otherwise fine; for example, I can edit in Emacs if I could do
it all without reading the characters.  Cycling S3 sleep doesn't restore
the brightness, nor does restarting xdm and the X server -- I need to
reboot and then the screen is back to normal brightness.

This is with xserver-xorg-video-intel 2.9.1-3 and kernel 2.6.33 (vanilla).
I imagine that it has KMS -- I didn't do anything special to disable
that when I compiled the kernel.



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Bug#564159: xserver-xorg-video-intel: crashed with assertion failure

[Sanjoy Mahajan]

I've been running current kernels and libdrm (2.4.18 from unstable) and
haven't seen the problem recur.



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Bug#564946: xserver-xorg-video-intel: screen flickers, tears, turns pink

[Sanjoy Mahajan]

> At least the flickering and 'screen turns to pink' issues are a kernel
> bug (or multiple kernel bugs).  Adding i915.powersave=0 to the kernel
> command line should work around that.

Thanks.  That fixed the pink screen and the flickering (and the 'tearing').



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Bug#564946: xserver-xorg-video-intel: screen flickers, tears, turns pink

[Sanjoy Mahajan]

Package: xserver-xorg-video-intel
Version: 2:2.9.1-2
Severity: grave

The flickering in #56 has returned since I upgraded the X server
and kernel a couple days ago (I'm tracking 'unstable').  Now it
flickers a once or twice per minute.

In addition, one of the Firefox windows often gets shifted to the left
by a few hundred pixels: not the toolbar, just the part displaying a
webpage, leaving the toolbar where it was.  Sending that Firefox
window behind other windows and then bringing it forward often fixes it.

Also, as I was writing this email, the whole screen turned pink.
Suspending and resuming (S3) restored the screen to its normal state.

The hardware is a Thinkpad T60 with Intel graphics and wireless.

-- Package-specific info:
/var/lib/x11/X.roster does not exist.

/var/lib/x11/X.md5sum does not exist.

X server symlink status:
lrwxrwxrwx 1 root root 13 Jan 27  2008 /etc/X11/X -> /usr/bin/Xorg
-rwxr-xr-x 1 root root 1712764 Jan  7 14:31 /usr/bin/Xorg

/var/lib/x11/xorg.conf.roster does not exist.

VGA-compatible devices on PCI bus:
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 
943/940GML Express Integrated Graphics Controller (rev 03)

/var/lib/x11/xorg.conf.md5sum does not exist.

Xorg X server configuration file status:
-rw-r--r-- 1 root root 1371 Jun 10  2009 /etc/X11/xorg.conf

Contents of /etc/X11/xorg.conf:
# xorg.conf (X.Org X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the xorg.conf manual page.
# (Type "man xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "InputDevice"
Identifier  "Generic Keyboard"
Driver  "kbd"
Option  "XkbRules"  "xorg"
Option  "XkbModel"  "pc104"
Option  "XkbLayout" "us"
EndSection

Section "InputDevice"
Identifier  "Configured Mouse"
Driver  "mouse"
EndSection

Section "ServerFlags"
   Option "DontZap" "false"
EndSection

#Section "Device"
#   Identifier  "Configured Video Device"
#EndSection

Section "Device"
Identifier  "Intel Corporation Mobile Integrated Graphics 
Controller"
#   Driver  "i810"
#   BusID   "PCI:0:2:0"
  Option "MonitorLayout" "CRT,LFP"
  Option "Clone" "true"
  Option "DevicePresence" "true"
EndSection

Section "Monitor"
Identifier  "Configured Monitor"
EndSection

Section "Screen"
Identifier  "Default Screen"
Monitor "Configured Monitor"
EndSection


Xorg X server log files on system:
-rw-r--r-- 1 root root 34418 Jan 12 17:14 /var/log/Xorg.0.log

Contents of most recent Xorg X server log file
/var/log/Xorg.0.log:

This is a pre-release version of the X server from The X.Org Foundation.
It is not supported in any way.
Bugs may be filed in the bugzilla at http://bugs.freedesktop.org/.
Select the "xorg" product for bugs you find in this release.
Before reporting bugs in pre-release versions please check the
latest version in the X.Org Foundation git repository.
See http://wiki.x.org/wiki/GitPage for git access instructions.

X.Org X Server 1.7.3.902 (1.7.4 RC 2)
Release Date: 2009-12-26
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.32.2-dsa-ia32 i686 Debian
Current Operating System: Linux approx 2.6.32-trunk-686 #1 SMP Sun Jan 10 
06:32:16 UTC 2010 i686
Kernel command line: BOOT_IMAGE=//vmlinuz-2.6.32-trunk-686 
root=UUID=96e6c8e5-fa38-4ac1-a749-4499ebc58575 ro quiet
Build Date: 07 January 2010  07:24:24PM
xorg-server 2:1.7.3.902-1 (bui...@murphy.debian.org) 
Current version of pixman: 0.16.4
Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Mon Jan 11 17:03:59 2010
(==) Using config file: "/etc/X11/xorg.conf"
(==) No Layout section.  Using the first Screen section.
(**) |-->Screen "Default Screen" (0)
(**) |   |-->Monitor "Configured Monitor"
(==) No device specified for screen "Default Screen".
Using the first device section listed.
(**) |   |-->Device "Intel Corporation Mobile Integrated Graphics Controller"
(**) Option "DontZap" "false"
(==) Automatically adding devices
(==) Automatically enabling devices
(WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
Entry deleted from font path.
(==) FontPath set 

Bug#523969: xserver-xorg: crash and assertion failure after running mplayer

[Sanjoy Mahajan]

Julien Cristau  wrote:

> It's quite likely that this is fixed with newer libdrm and/or
> xserver-xorg-video-intel.  Can you confirm?

I'm now using libdrm 2.4.15-1 and xserver-xorg-video-intel 2.9.1-1, and
I just retested the .mp4 files on my system (not sure which .mp4 file I
had used back in April).  They worked fine with mplayer.

The only assertion message was the following (after I typed Ctrl-Q in
the mplayer window to exit):

Inconsistency detected by ld.so: dl-close.c: 731: _dl_close: Assertion 
`map->l_init_called' failed!

But that may be an mplayer issue.

-Sanjoy



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Bug#522226: xserver-xorg-video-intel: screen briefly flashes/flickers a few times an hour

[Sanjoy Mahajan]

The flickering seems absent since this morning, when I installed and
rebooted with the latest and greatest 2.6.30 kernel package
(linux-image-2.6.30-1-686 version 2.6.30-5).



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Bug#522226: xserver-xorg-video-intel: screen briefly flashes/flickers a few times an hour

[Sanjoy Mahajan]

> Please send your config and log.

=== /etc/X11/xorg.conf =

# xorg.conf (X.Org X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the xorg.conf manual page.
# (Type "man xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "InputDevice"
Identifier  "Generic Keyboard"
Driver  "kbd"
Option  "XkbRules"  "xorg"
Option  "XkbModel"  "pc104"
Option  "XkbLayout" "us"
EndSection

Section "InputDevice"
Identifier  "Configured Mouse"
Driver  "mouse"
EndSection

Section "ServerFlags"
   Option "DontZap" "false"
EndSection

#Section "Device"
#   Identifier  "Configured Video Device"
#EndSection

Section "Device"
Identifier  "Intel Corporation Mobile Integrated Graphics 
Controller"
#   Driver  "i810"
#   BusID   "PCI:0:2:0"
  Option "MonitorLayout" "CRT,LFP"
  Option "Clone" "true"
  Option "DevicePresence" "true"
EndSection

Section "Monitor"
Identifier  "Configured Monitor"
EndSection

Section "Screen"
Identifier  "Default Screen"
Monitor "Configured Monitor"
EndSection

=== end /etc/X11/xorg.conf =


= /var/log/Xorg.0.log =

X.Org X Server 1.6.3
Release Date: 2009-7-31
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.31-rc3-686 i686 Debian
Current Operating System: Linux approx 2.6.30-1-686 #1 SMP Thu Jul 30 14:45:30 
UTC 2009 i686
Build Date: 01 August 2009  07:00:08AM
xorg-server 2:1.6.3-1 (bgog...@debian.org) 
Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Sat Aug  1 22:07:10 2009
(==) Using config file: "/etc/X11/xorg.conf"
(==) No Layout section.  Using the first Screen section.
(**) |-->Screen "Default Screen" (0)
(**) |   |-->Monitor "Configured Monitor"
(==) No device specified for screen "Default Screen".
Using the first device section listed.
(**) |   |-->Device "Intel Corporation Mobile Integrated Graphics Controller"
(**) Option "DontZap" "false"
(==) Automatically adding devices
(==) Automatically enabling devices
(WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
Entry deleted from font path.
(==) FontPath set to:
/usr/share/fonts/X11/misc,
/usr/share/fonts/X11/100dpi/:unscaled,
/usr/share/fonts/X11/75dpi/:unscaled,
/usr/share/fonts/X11/Type1,
/usr/share/fonts/X11/100dpi,
/usr/share/fonts/X11/75dpi,
/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType,
built-ins
(==) ModulePath set to "/usr/lib/xorg/modules"
(II) Cannot locate a core pointer device.
(II) Cannot locate a core keyboard device.
(II) The server relies on HAL to provide the list of input devices.
If no devices become available, reconfigure HAL or disable 
AllowEmptyInput.
(II) Loader magic: 0x3e40
(II) Module ABI versions:
X.Org ANSI C Emulation: 0.4
X.Org Video Driver: 5.0
X.Org XInput driver : 4.0
X.Org Server Extension : 2.0
(II) Loader running on linux
(++) using VT number 7

(WW) xf86OpenConsole: setpgid failed: Operation not permitted
(WW) xf86OpenConsole: setsid failed: Operation not permitted
(--) PCI:*(0:0:2:0) 8086:27a2:17aa:201a Intel Corporation Mobile 945GM/GMS, 
943/940GML Express Integrated Graphics Controller rev 3, Mem @ 
0xee10/524288, 0xd000/268435456, 0xee20/262144, I/O @ 0x1800/8
(II) Open ACPI successful (/var/run/acpid.socket)
(II) System resource ranges:
[0] -1  0   0x - 0x (0x1) MX[B]
[1] -1  0   0x000f - 0x000f (0x1) MX[B]
[2] -1  0   0x000c - 0x000e (0x3) MX[B]
[3] -1  0   0x - 0x0009 (0xa) MX[B]
[4] -1  0   0x - 0x (0x1) IX[B]
[5] -1  0   0x - 0x (0x1) IX[B]
(II) LoadModule: "extmod"
(II) Loading /usr/lib/xorg/modules/extensions//libextmod.so
(II) Module extmod: vendor="X.Org Foundation"
compiled for 1.6.3, module version = 1.0.0
Module class: X.Org Server Extension
ABI class: X.Org Server Extension, version 2.0
(II) Loading extension SELinux
(II) Loading e

Bug#522226: xserver-xorg-video-intel: screen briefly flashes/flickers a few times an hour

[Sanjoy Mahajan]

The screen flickering has returned after aptitude upgrading a few days
ago.  It happens every few minutes.

The upgrade switched to these xserver-xorg packages:

  xserver-xorg-core 2:1.6.3-1
  xserver-xorg-video-intel 2:2.8.0-2

The hardware is a TP T60 with Intel graphics.  From lspci:

00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML 
Express Integrated Graphics Controller (rev 03)



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Bug#533090: Acknowledgement (xserver-xorg-video-intel: X server crashed, now virtual consoles not working)

[Sanjoy Mahajan]

I haven't rebooted since the server crash (and won't unless I have to
because of another crash).  So I can reproduce the console problem any
time, and can run lspci or any other diagnostics that might help track
it down.



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Bug#498884: xserver-xorg: Error in I830WaitLpRing()

[Sanjoy Mahajan]

I'm using the intel driver from unstable (2.7.1), and I have not noticed
the problem.

2.7.1 also fixed other hangs I often noticed with 2.7.0.  The fix was
probably this change:

* Fix multiplication error when computing required batch space.
  This could fix any number of cases where the driver did
  inexplicable things (due to having computed the wrong
  size). [Keith Packard ]

-Sanjoy



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Bug#523969: xserver-xorg: crash and assertion failure after running mplayer

[Sanjoy Mahajan]

Package: xserver-xorg
Version: 1:7.4+1
Severity: normal

When running mplayer on an .mp4 file, it complained about LIRC
something or other, then the X server crashed.  In /var/log/xdm.log
there were these lines including an assertion failure:

I830PMEvent: Capability change
I830PMEvent: Capability change
exaCopyDirty: Pending damage region empty!
I830PMEvent: Capability change
I830PMEvent: Capability change
I830PMEvent: Capability change
I830PMEvent: Capability change
I830PMEvent: Capability change
I830PMEvent: Capability change
I830PMEvent: Capability change
I830PMEvent: Capability change
I830PMEvent: Capability change
I830PMEvent: Capability change
I830PMEvent: Capability change
I830PMEvent: Capability change
I830PMEvent: Capability change
X: ../../../libdrm/intel/intel_bufmgr_fake.c:1107: drm_intel_fake_bo_validate: 
Assertion `bo_fake->block->bo == &bo_fake->bo' failed.
Mon Apr 13 20:38:44 2009 xdm info (pid 5274): sourcing /etc/X11/xdm/Xreset
Mon Apr 13 20:38:44 2009 xdm error (pid 5235): Server for display :0 terminated 
unexpectedly: 1536
Mon Apr 13 20:38:44 2009 xdm info (pid 5274): sourcing /etc/X11/xdm/Xreset


-- Package-specific info:
Contents of /var/lib/x11/X.roster:
xserver-xorg

/var/lib/x11/X.md5sum does not exist.

X server symlink status:
lrwxrwxrwx 1 root root 13 2008-01-27 19:51 /etc/X11/X -> /usr/bin/Xorg
-rwxr-xr-x 1 root root 1694172 2009-04-09 09:28 /usr/bin/Xorg

Contents of /var/lib/x11/xorg.conf.roster:
xserver-xorg

VGA-compatible devices on PCI bus:
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 
943/940GML Express Integrated Graphics Controller (rev 03)

/etc/X11/xorg.conf does not match checksum in /var/lib/x11/xorg.conf.md5sum.

Xorg X server configuration file status:
-rw-r--r-- 1 root root 1309 2009-04-07 01:28 /etc/X11/xorg.conf

Contents of /etc/X11/xorg.conf:
# xorg.conf (X.Org X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the xorg.conf manual page.
# (Type "man xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "InputDevice"
Identifier  "Generic Keyboard"
Driver  "kbd"
Option  "XkbRules"  "xorg"
Option  "XkbModel"  "pc104"
Option  "XkbLayout" "us"
EndSection

Section "InputDevice"
Identifier  "Configured Mouse"
Driver  "mouse"
EndSection

#Section "Device"
#   Identifier  "Configured Video Device"
#EndSection

Section "Device"
Identifier  "Intel Corporation Mobile Integrated Graphics 
Controller"
#   Driver  "i810"
#   BusID   "PCI:0:2:0"
  Option "MonitorLayout" "CRT,LFP"
  Option "Clone" "true"
  Option "DevicePresence" "true"
EndSection

Section "Monitor"
Identifier  "Configured Monitor"
EndSection

Section "Screen"
Identifier  "Default Screen"
Monitor "Configured Monitor"
EndSection


Xorg X server log files on system:
-rw-r--r-- 1 root root 27563 2009-04-13 20:38 /var/log/Xorg.0.log

Contents of most recent Xorg X server log file
/var/log/Xorg.0.log:

X.Org X Server 1.6.0
Release Date: 2009-2-25
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.26-2-amd64 i686 Debian
Current Operating System: Linux approx 2.6.29pmdebug #1 SMP Fri Apr 3 15:07:48 
EDT 2009 i686
Build Date: 09 April 2009  01:23:13PM
xorg-server 2:1.6.0-1 (bui...@puccini.debian.org) 
Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Mon Apr 13 20:38:44 2009
(==) Using config file: "/etc/X11/xorg.conf"
(==) No Layout section.  Using the first Screen section.
(**) |-->Screen "Default Screen" (0)
(**) |   |-->Monitor "Configured Monitor"
(==) No device specified for screen "Default Screen".
Using the first device section listed.
(**) |   |-->Device "Intel Corporation Mobile Integrated Graphics Controller"
(==) Automatically adding devices
(==) Automatically enabling devices
(WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
Entry deleted from font path.
(==) FontPath set to:
/usr/share/fonts/X11/misc,
/usr/share/fonts/X11/100dpi/:unscaled,
/usr/share/fonts/X11/75dpi/:unscaled,
/usr/share/fonts/X11/Type1,
/usr/share/fonts/X11/100dpi,

Bug#522226: xserver-xorg-video-intel: screen briefly flashes/flickers a few times an hour

[Sanjoy Mahajan]

> Don't use make install. Just copy src/.libs/intel.so into
> /usr/lib/xorg/modules/drivers/ (after having moved the old intel.so
> from there).

Great, that's a much simpler recipe.  I did that and restarted the X
server (with just one server), and got this in the log

(II) LoadModule: "intel"
(II) Loading /usr/lib/xorg/modules/drivers//intel_drv.so
dlopen: /usr/lib/xorg/modules/drivers//intel_drv.so: undefined symbol: 
PictureScreenPrivateKey
(EE) Failed to load /usr/lib/xorg/modules/drivers//intel_drv.so
(II) UnloadModule: "intel"
(EE) Failed to load module "intel" (loader failed, 7)

Perhaps I compiled against incompatible header files?

But, the good news is that in looking at that log file, I noticed i810
being loaded.  My xorg.conf (until 2 days ago) had the i810 and
PCI:0:2:0 lines commented in (see snippet below).  I think those lines
were needed long ago, and got inherited.  When I commented out those two
lines, and returned to the intel 2.3.2 driver, the flicker seems to have
gone away.  I'll keep watching for it and report if I see it return.

Section "Device"
Identifier  "Intel Corporation Mobile Integrated Graphics 
Controller"
#   Driver  "i810"
#   BusID   "PCI:0:2:0"
  Option "MonitorLayout" "CRT,LFP"
  Option "Clone" "true"
  Option "DevicePresence" "true"
EndSection



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Bug#522226: xserver-xorg-video-intel: screen briefly flashes/flickers a few times an hour

[Sanjoy Mahajan]

> I'm using the intel driver from the experimental repo on a system
> otherwise using unstable without any ill effects. The problem is that
> even the experimental version is too old (2.6.1). Upstream has had a
> large number of bug fixes since then (most importantly to me - XV
> tearing fixes and the sync fixes we're discussing right now), so I'm
> hoping a more recent version will appear in experimental or unstable
> soon.

I compiled xf86-video-intel-2.6.99.902 from upstream.  It also didn't
have the sync fix.  But it was the only version to which the sync patch
applied cleanly (2.6.1 and 2.6.3 had a few hunks failing).  The 'make
install' put the modules went into /usr/local/lib/xorg/

I cannot quite figure out how to run the regular server (1.4.2) but with
the latest intel driver.  I tried adding a vt8 line to the end of
/etc/X11/xdm/Xservers

:0 local /usr/bin/X :0 vt7 -nolisten tcp
:1 local /usr/bin/Xorg :0 vt8 -nolisten tcp -modulepath 
/usr/local/lib/xorg/modules/drivers/,/usr/lib/xorg/modules

but didn't have any luck getting the server to start that way or when
starting it by hand.

I'm quite confused about how all the X pieces with together, so I'm just
taking random stabs in the dark.  How should/can I run the new driver
compiled by hand alongside the rest of the Debian unstable X install?



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Bug#522226: xserver-xorg-video-intel: screen briefly flashes/flickers a few times an hour

[Sanjoy Mahajan]

> I'm pretty certain that what you're seeing is already reported upstream:
> https://bugs.freedesktop.org/show_bug.cgi?id=17805

I just read through that thread.  It looks similar but I'm not too sure.
The reports there were of the whole display blanking for a (short)
while.  Mine doesn't go blank.  Instead a portion of it jitters rapidly
sideways, then recovers (all under 0.1 seconds).  Seen out of the corner
of the eye, it looks like a flash.

But it seems similar to those reports in that sync timings are a likely
culprit.

I'll either wait for a new driver to make it into Debian unstable, or
compile 2.5.1 + patch myself.  Is it reasonable to try the version in
'experimental'?  That seems like it would be a big change to the xorg
file or package layout, so I was a bit worried about using those
packages.

By the way, I just saw the same flash now running 2.6.27.4, so the
problem is not a kernel problem (or not only a kernel problem).  I
wonder why I didn't notice it before though.

-Sanjoy



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Bug#498884: xserver-xorg: Error in I830WaitLpRing()

[Sanjoy Mahajan]

Package: xserver-xorg
Version: 1:7.3+16
Severity: normal

After about a day of uptime, the X server suddenly crashed; xdm tried
to restart it but the server kept crashing.  Restarting xdm didn't
help, but rebooting did.

The machine is a Thinkpad T60 with Intel integrated graphics.

Here is the xdm.log.1 file, which contains the X server error message
("Error in I830WaitLpRing()") with other debugging info.  I don't
think I can reproduce the error as I've not seen it happen any other
time.

Tue Sep  9 17:32:48 2008 xdm info (pid 4923): starting
Tue Sep  9 17:32:48 2008 xdm info (pid 4923): starting X server on :0

X.Org X Server 1.4.2
Release Date: 11 June 2008
X Protocol Version 11, Revision 0
Build Operating System: Linux Debian (xorg-server 2:1.4.2-5)
Current Operating System: Linux approx 2.6.26-1-686 #1 SMP Thu Aug 28 12:00:54 
UTC 2008 i686
Build Date: 26 August 2008  07:32:05PM
 
Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
Module Loader present
Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Tue Sep  9 17:32:48 2008
(==) Using config file: "/etc/X11/xorg.conf"
(WW) intel: No matching Device section for instance (BusID PCI:0:2:1) found
(II) Module "ddc" already built-in
(II) Module "i2c" already built-in
(II) Module "ramdac" already built-in
Tue Sep  9 17:32:55 2008 xdm info (pid 4951): sourcing /etc/X11/xdm/Xsetup
Tue Sep  9 17:33:02 2008 xdm info (pid 4951): sourcing /etc/X11/xdm/Xstartup
Tue Sep  9 17:33:02 2008 xdm info (pid 5001): executing session 
/etc/X11/xdm/Xsession
SetClientVersion: 0 9
I830PMEvent: Capability change
I830PMEvent: Capability change
I830PMEvent: Capability change
I830PMEvent: Capability change
ReopenLogFileNotify handling SIGUSR2
I830PMEvent: Capability change
I830PMEvent: Capability change
I830PMEvent: Capability change
I830PMEvent: Capability change
I830PMEvent: Capability change
I830PMEvent: Capability change
The XKEYBOARD keymap compiler (xkbcomp) reports:
> Warning:  Duplicate shape name ""
>   Using last definition
> Warning:  Duplicate shape name ""
>   Using last definition
> Warning:  Duplicate shape name ""
>   Using last definition
> Warning:  Duplicate shape name ""
>   Using last definition
> Warning:  Duplicate shape name ""
>   Using last definition
> Warning:  Duplicate shape name ""
>   Using last definition
> Warning:  Duplicate shape name ""
>   Using last definition
> Warning:  Duplicate shape name ""
>   Using last definition
> Warning:  Duplicate shape name ""
>   Using last definition
> Warning:  Duplicate shape name ""
>   Using last definition
> Warning:  Duplicate shape name ""
>   Using last definition
> Warning:  Duplicate shape name ""
>   Using last definition
> Warning:  Duplicate shape name ""
>   Using last definition
> Warning:  Duplicate shape name ""
>   Using last definition
> Error:Section defined without a name
>   Definition ignored
> Error:Section defined without a name
>   Definition ignored
> Error:Section defined without a name
>   Definition ignored
> Error:Section defined without a name
>   Definition ignored
> Warning:  Multiple doodads named ""
>   Using first definition
> Warning:  Multiple doodads named ""
>   Using first definition
> Warning:  Multiple doodads named ""
>   Using first definition
> Warning:  Multiple doodads named ""
>   Using first definition
> Warning:  Multiple doodads named ""
>   Using first definition
> Warning:  Multiple doodads named ""
>   Using first definition
Errors from xkbcomp are not fatal to the X server
(EE) Error compiling keymap (server-0)
(EE) XKB: Couldn't compile keymap
AUDIT: Thu Sep 11 14:16:07 2008: 4950 X: client 15 rejected from local host 
(uid 0)
AUDIT: Thu Sep 11 14:16:07 2008: 4950 X: client 15 rejected from local host 
(uid 0)
AUDIT: Thu Sep 11 14:16:08 2008: 4950 X: client 15 rejected from local host 
(uid 0)
AUDIT: Thu Sep 11 14:16:08 2008: 4950 X: client 15 rejected from local host 
(uid 0)
AUDIT: Thu Sep 11 14:16:08 2008: 4950 X: client 15 rejected from local host 
(uid 0)
AUDIT: Thu Sep 11 14:16:08 2008: 4950 X: client 15 rejected from local host 
(uid 0)
AUDIT: Thu Sep 11 14:17:41 2008: 4950 X: client 15 rejected from local host

Bug#365134: which X server is correct?

[Sanjoy Mahajan]

I just ran into this problem as well, and was about to report the same
workaround (changing /usr/bin/X11/xdm to /usr/bin/xdm in /etc/init.d/xdm
and /etc/X11/default-display-manager).  But I'm still not sure which X
server to use in /etc/X11/xdm/Xservers.  There's

-rwxr-xr-x 1 root root 1878204 2006-04-03 23:44 /usr/bin/X11/Xorg
[from xserver-xorg   6.9.0.dfsg.1-6]

or

-rwsr-sr-x 1 root root 7800 2006-04-03 23:44 /usr/bin/X11/X
[from xserver-common 6.9.0.dfsg.1-6]

Is one better than the other?

-Sanjoy

`A society of sheep must in time beget a government of wolves.'
   - Bertrand de Jouvenal


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