I also find it curious you are using 16 bit depth instead of 24.

On Fri, 30 May 2008, Nick Schmansky wrote:

Jenifer,

I see you have this in your /etc/X11/xorg.conf file:


Section "Module"
        Load  "glx"
EndSection


Others having the recent tksurfer problem should make sure they have
these lines as well, as tksurfer uses glx.

Also, fyi, you can get a higher display resolution than the default.
Try changing this line:

                Modes    "1024x768" "800x600" "640x480"

to something like this:

Modes  "1600x1200" "1280x1024" "1024x768" "800x600" "640x480"


It will use the first mode in the list, and if that doesnt work, it will
try the next one.  You can delete ones that dont work.  In other words,
put your desired resolution first in the list.

Nick




On Fri, 2008-05-30 at 13:37 -0500, Juranek, Jenifer wrote:
Hi Nick,
I've attached the current /etc/X11/xorg.conf as a text file.

Let me know if I can provide any additional info

Cheers,
Jenifer

-----Original Message-----
From: Nick Schmansky [mailto:[EMAIL PROTECTED]
Sent: Fri 5/30/2008 1:31 PM
To: Juranek, Jenifer
Cc: Freesurfer Mailing List
Subject: Re: [Freesurfer] tksurfer display broken: fixed

Jenifer,

Thanks for the detailed info!  Just to be clear, does your
current /etc/X11/xorg.conf have the line:

  Load "glx"


glx is OpenGL on X-Windows, allowing X windows apps, like tksurfer, to
run using OpenGL, for accelerated graphics.  Ideally, you want to load
glx.

Nick


On Fri, 2008-05-30 at 12:42 -0500, Juranek, Jenifer wrote:
Not exactly sure how or what happened...but did manage to "fix" my tksurfer 
display problem.
Since others on the list had reported similar problems, I thought I'd post what I did to "fix" the 
problem. Since I'm not a Linux guru, my "fix" is probably just a "bandaid"...but it did 
work...and hopefully the info provides some assistance to others.

Just to note the following particulars of my system:
RHEL5 (DELL Precision 690n box went live April 16, 2008)
Linux_x86_64 architecture

2 kernels:
drwxr-xr-x 18 root root 4096 May  9 13:50 2.6.18-53.1.19.el5-x86_64
drwxr-xr-x 18 root root 4096 May 27 15:02 2.6.18-92.el5-x86_64

NVIDIA Quadro Fx 3450/4000 SDI
Driver Version 1.0-9746

"Friendly" software also installed on the same box=fslv404
MATLAB r2008a is also installed (currently running -lgi on bert...I'll update on the 
outcome of this "friendliness" test)


As of yesterday, had several possible scenarios outlined:
1) rpm -e dell-nvidia-rhel5-169.12-1dkms.x86_64.rpm
   rpm -ivh dell-nvidia-9746-7dkms.x86_64.rpm
--> should return to a well-behaved (albeit "older") nvidia
driver...same as "out of the box"

2) restore original "out of the box" settings for entire system via
/usr/var/dell/reinstall.sh
--> should return ALL system settings to original "out of the box"...good for 
freesurfer and fsl apps but not so good for matlab...

3) boot into older kernel (I apparently have a total of 2 listed in
/usr/src/kernels)
[EMAIL PROTECTED] kernels]# ls -l
total 16
drwxr-xr-x 18 root root 4096 May  9 13:50 2.6.18-53.1.19.el5-x86_64
drwxr-xr-x 18 root root 4096 May 27 15:02 2.6.18-92.el5-x86_64

I attempted (1) first. However, the driver was not well-behaved for bert 
(tkmedit or tksurfer).
I attempted (3) second. However, no change in behavior.
While tarballing to prepare for (3)...since everything worked perfectly fine right 
out of the box -- before Matlab and before any package updates...I found my 
*original* /etc/X11/xorg.conf file (from April 16) and cp it into 
/etc/X11/xorg.conf & rebooted.

RESULTS:
Was *very* happy to see tksurfer & tkmedit behave properly for bert.
Proper behavior for tksurfer & tkmedit was observed in both kernels (after the 
xorg.conf file replacement).
Still waiting to see if matlab behaves for bert's -lgi.

I diff'd the "original" xorg.conf with the "broken" one and the following lines 
were returned:

Hope this helps others find their "bandaid" solution to get them up and running 
again.
Cheers,
Jenifer

[EMAIL PROTECTED] X11]# diff xorg.conf.backup.OLD xorg.conf.backup
1,4c1,2
<
< # nvidia-xconfig: X configuration file generated by nvidia-xconfig
< # nvidia-xconfig:  version 1.0  ([EMAIL PROTECTED])  Fri Dec 15 10:40:27 PST 
2006
< # Xorg configuration created by system-config-display
---
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 1.0  ([EMAIL PROTECTED])  Fri Dec 15 10:40:57 PST 
2006
7,10c5,8
<       Identifier     "Default Layout"
<       Screen      0  "Screen0" 0 0
<       InputDevice    "Mouse0" "CorePointer"
<       InputDevice    "Keyboard0" "CoreKeyboard"
---
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"

13a12,13
    RgbPath         "/usr/lib64/X11/rgb"
    FontPath        "unix/:7100"
17c17,21
<       Load  "glx"
---
    Load           "dbe"
    Load           "extmod"
    Load           "type1"
    Load           "freetype"
    Load           "glx"
21c25
<       Option      "AllowMouseOpenFail" "yes"
---
    Option         "Xinerama" "0"
25d28
<
27,32c30,35
<       Identifier  "Mouse0"
<       Driver      "mouse"
<       Option      "Protocol" "auto"
<       Option      "Device" "/dev/input/mice"
<       Option      "Emulate3Buttons" "no"
<       Option      "ZAxisMapping" "4 5"
---
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/input/mice"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
36,39c39,43
<       Identifier  "Keyboard0"
<       Driver      "kbd"
<       Option      "XkbModel" "pc105"
<       Option      "XkbLayout" "us"
---
    # generated from data in "/etc/sysconfig/keyboard"
    Identifier     "Keyboard0"
    Driver         "kbd"
    Option         "XkbLayout" "us"
    Option         "XkbModel" "pc105"
43,49c47,53
<       Identifier   "Monitor0"
<       VendorName   "Unknown"
<       ModelName    "Unknown"
<  ### Comment all HorizSync and VertSync values to use DDC:
<       HorizSync    30.0 - 110.0
<       VertRefresh  50.0 - 150.0
<       Option      "DPMS"
---
    # HorizSync source: edid, VertRefresh source: edid
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "DELL 2007WFP"
    HorizSync       30.0 - 83.0
    VertRefresh     56.0 - 76.0
    Option         "DPMS"
53,55c57,60
<       Identifier  "Videocard0"
<       Driver      "nvidia"
<       BoardName   "NVIDIA PCI-Express Quadro FX 3450"
---
    Identifier     "Videocard0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "Quadro FX 3450/4000 SDI"
59,71c64,72
<       Identifier "Screen0"
<       Device     "Videocard0"
<       Monitor    "Monitor0"
<       DefaultDepth     16
<       SubSection "Display"
<               Viewport   0 0
<               Depth     24
<       EndSubSection
<       SubSection "Display"
<               Viewport   0 0
<               Depth     16
<               Modes    "1024x768" "800x600" "640x480"
<       EndSubSection
---
    Identifier     "Screen0"
    Device         "Videocard0"
    Monitor        "Monitor0"
    DefaultDepth    16
    Option         "metamodes" "1024x768 +0+0; 1600x1024 +0+0; 800x600 +0+0; 640x480 
+0+0; 1280x1024 +0+0"
    SubSection     "Display"
        Depth       16
        Modes      "1600x1200" "1280x1024" "1024x768" "800x600" "640x480"
    EndSubSection
[EMAIL PROTECTED] X11]#






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--
---------------------------------------------------------------
Paul Raines                email: raines at nmr.mgh.harvard.edu
MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging
149 (2301) 13th Street     Charlestown, MA 02129            USA


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