Bug#569135: xserver-xorg-video-intel: corruption on external VGA display

2011-08-17 Thread Christophe Rhodes
Jonathan Nieder jrnie...@gmail.com writes:

 Hi Christophe,

 Christophe Rhodes wrote:

 A note to let you know that I've tested the vanilla kernel, and at least
 v2.6.36-rc3 seems free of the VGA corruption that led me to write this
 bug report.
 [...]
 This means that the problem described in this bug is now solved for my
 purposes; unfortunately, it doesn't mean that the problem is solved in
 squeeze...

 Thanks for the nice report last year.  There have been some fixes in
 this area of the kernel in squeeze since then, so if you get a chance
 to test a recent 2.6.32.y kernel, that would be interesting.

I've just tested Debian version 2.6.32-5-686 (which I think corresponds
roughly with 2.6.32.41, at least according to changelog.Debian.gz).
Unfortunately the corruption on the external display is still present
under the same conditions (no corruption when nothing changes on either
display; large corruptions on motion).  Is that a recent enough kernel
for the test to be interesting, or should I be building my own using
higher patches (i.e. is there relevant stuff between .41 and .45 that I
should be looking at?  A quick grep for i915 didn't suggest so, but I
could be wrong.)

Thanks,

Christophe



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Bug#569135: xserver-xorg-video-intel: corruption on external VGA display

2011-08-17 Thread Jonathan Nieder
fixed 569135 linux-2.6/2.6.36~rc5-1~experimental.1
found 569135 linux-2.6/2.6.32-35
quit

Christophe Rhodes wrote:

 I've just tested Debian version 2.6.32-5-686 (which I think corresponds
 roughly with 2.6.32.41, at least according to changelog.Debian.gz).
 Unfortunately the corruption on the external display is still present
 under the same conditions (no corruption when nothing changes on either
 display; large corruptions on motion).  Is that a recent enough kernel
 for the test to be interesting, or should I be building my own using
 higher patches

Thanks for checking.  Yep, I don't know of any drm fixes backported
since then worth mentioning here.

Could you get output from dmesg at bootup and when triggering the
corruption with drm.debug=0x6 on the kernel command line?



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Bug#569135: xserver-xorg-video-intel: corruption on external VGA display

2011-08-10 Thread Jonathan Nieder
Hi Christophe,

Christophe Rhodes wrote:

 A note to let you know that I've tested the vanilla kernel, and at least
 v2.6.36-rc3 seems free of the VGA corruption that led me to write this
 bug report.
[...]
 This means that the problem described in this bug is now solved for my
 purposes; unfortunately, it doesn't mean that the problem is solved in
 squeeze...

Thanks for the nice report last year.  There have been some fixes in
this area of the kernel in squeeze since then, so if you get a chance
to test a recent 2.6.32.y kernel, that would be interesting.

Ciao,
Jonathan



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Bug#569135: xserver-xorg-video-intel: corruption on external VGA display

2010-02-10 Thread Christophe Rhodes
Package: xserver-xorg-video-intel
Version: 2:2.9.1-2
Severity: normal

Hi,

With the update to 2.9.1-2 (I believe from the version _before_ 2.9.1-1, but I
can't be sure), using an external display (projector or monitor) is no longer
possible, because the external display (only, not the LVDS display in my X40
Thinkpad) does not update correctly.  It's a bit difficult to describe the
symptom; if nothing at all changes on either display, then both screens
display what they ought to; however, any change in the displayed graphics
(for example, by moving the mouse cursor, or going from one slide to the next)
causes of the order of one or two seconds of garbled output on the external
display before it settles down.

I suspect the upgrade of this package is at fault, but I can't actually verify
that; I tried turning off KMS in /etc/modprobe.d/i915-kms.conf, but that gives
me a blank screen on boot.

Please let me know if there's any thing else I should try to help resolve this.

Best,

Christophe

-- 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 Nov  6  2006 /etc/X11/X - /usr/bin/Xorg
-rwxr-xr-x 1 root root 1710344 Jan 20 23:01 /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 82852/855GM Integrated 
Graphics Device (rev 02)

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

Xorg X server configuration file status:
-rw-r--r-- 1 root root 3376 Sep 20 17:51 /etc/X11/xorg.conf

Contents of /etc/X11/xorg.conf:
# /etc/X11/xorg.conf (xorg 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 /etc/X11/xorg.conf manual page.
# (Type man /etc/X11/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 Files
FontPath/usr/share/fonts/X11/misc
FontPath/usr/X11R6/lib/X11/fonts/misc
FontPath/usr/share/fonts/X11/cyrillic
FontPath/usr/X11R6/lib/X11/fonts/cyrillic
FontPath/usr/share/fonts/X11/100dpi/:unscaled
FontPath/usr/X11R6/lib/X11/fonts/100dpi/:unscaled
FontPath/usr/share/fonts/X11/75dpi/:unscaled
FontPath/usr/X11R6/lib/X11/fonts/75dpi/:unscaled
FontPath/usr/share/fonts/X11/Type1
FontPath/usr/X11R6/lib/X11/fonts/Type1
FontPath/usr/share/fonts/X11/100dpi
FontPath/usr/X11R6/lib/X11/fonts/100dpi
FontPath/usr/share/fonts/X11/75dpi
FontPath/usr/X11R6/lib/X11/fonts/75dpi
# path to defoma fonts
FontPath/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType
EndSection

Section Module
Loadbitmap
Loadddc
Loaddri
Loadextmod
Loadfreetype
Loadglx
Loadint10
Loadvbe
EndSection

Section InputDevice
Identifier  Generic Keyboard
Driver  kbd
Option  CoreKeyboard
Option  XkbRules  xorg
Option  XkbModel  pc101
Option  XkbLayout gb
Option  XkbOptionsctrl:nocaps
EndSection

Section InputDevice
Identifier  Configured Mouse
Driver  mouse
Option  CorePointer
Option  Device/dev/input/mice
Option  Protocol  ImPS/2
Option  Emulate3Buttons   true
EndSection

Section InputDevice
Identifier  Synaptics Touchpad
Driver  synaptics
Option  SendCoreEventstrue
Option  Device/dev/psaux
Option  Protocol  auto-dev
Option  HorizScrollDelta  0
EndSection

Section Device
Identifier  Intel Corporation 82852/855GM Integrated Graphics 
Device
Driver  intel
BusID   PCI:0:2:0
EndSection

Section Monitor
Identifier  Generic Monitor
Option  DPMS
HorizSync   28-61
VertRefresh 43-60
EndSection

Section Screen
Identifier  Default Screen
Device  Intel Corporation 82852/855GM Integrated Graphics 
Device
Monitor Generic Monitor
DefaultDepth24
SubSection Display
Depth   1
Modes   1024x768 800x600 640x480
EndSubSection