Re: Buffer Image

2006-05-20 Thread James R. Van Zandt

Indraveni [EMAIL PROTECTED] writes:

 Whenever I am rebooting my system an image is being displayed on my
 screen, which is the last logout screen of the system.

I suggest you replace any stored image at boot time, e.g. with code
like this in /etc/lilo.conf:
  
  # Enable graphical boot menu:
  # bitmap= conflicts with message=
  bitmap=/boot/debian-bootscreen-woody.bmp
  install=/boot/boot-bmp.b
  bmp-colors=1,,0,2,,0
  bmp-table=120p,173p,1,15,17
  bmp-timer=254p,432p,1,0,0

 - Jim Van Zandt


-- 
To UNSUBSCRIBE, email to [EMAIL PROTECTED] 
with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]



Re: Buffer Image

2006-05-15 Thread Hamish Moffatt
On Mon, May 15, 2006 at 06:43:20AM +0100, Indraveni wrote:
   I am using debian and I am findng a bug in this. Whenever I am rebooting my 
 system an image is being displayed on my screen, which is the last logout 
 screen of the system.
  
   At which ever state I am logging out that same image is being displayed 
 before i login my OS.
  
   ahy this image is displyed. Can any one tell me from where this Image is 
 coming and how can I resolve it.

I think it comes from the RAM on your video card. Basically nothing
overwrote the image that was there last time the card was in that mode.
Text mode uses a much smaller (and possibly different) section of the
RAM.

  Anybody there who is working on it.

Is it a problem?

You could blank the RAM somehow if it's important.

Hamish
-- 
Hamish Moffatt VK3SB [EMAIL PROTECTED] [EMAIL PROTECTED]


-- 
To UNSUBSCRIBE, email to [EMAIL PROTECTED] 
with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]



Re: Buffer Image

2006-05-15 Thread Mihira Fernando
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Hamish Moffatt wrote:
 On Mon, May 15, 2006 at 06:43:20AM +0100, Indraveni wrote:
 
  I am using debian and I am findng a bug in this. Whenever I am rebooting my 
 system an image is being displayed on my screen, which is the last logout 
 screen of the system.
 
  At which ever state I am logging out that same image is being displayed 
 before i login my OS.
 
  ahy this image is displyed. Can any one tell me from where this Image is 
 coming and how can I resolve it.
I found this to happen when VESA or FBDEV drivers are being used for X.
It did resolve when I configured X to use the proper driver for the
Video card.

Ace.

- --
Random Quotes From Megas XLR
Coop: You see? The mysteries of the Universe are revealed when you break
stuff.
Jamie: When in doubt, blow up a planet.
Kiva: It's an 80 foot robot, if we can't see it, absolutely it's not here.
Glorft Technician: Unnecessary use of force in capturing the Earthers
has been approved.

-BEGIN PGP SIGNATURE-
Version: GnuPG v1.4.2.1 (MingW32)
Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org

iD8DBQFEaEEK7U+DAAbUYg0RAti0AKCJCjipCXCDzHepx+Gr02kndIUlvQCeOLlF
tUgKglMaN9fPwquJSMrUwfk=
=suqZ
-END PGP SIGNATURE-


-- 
To UNSUBSCRIBE, email to [EMAIL PROTECTED] 
with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]



Re: Buffer Image

2006-05-15 Thread Petter Reinholdtsen

[Indraveni]
 ahy this image is displyed. Can any one tell me from where this Image is
 coming and how can I resolve it.

As far as I know this image is stored in the video memory of your
video card, and is displayed after the video mode is switched and
before the X server manage to replace the content of the video memory
with the new content.

 Anybody there who is working on it.

I have no idea.  I'm not sure if anyone in the X consider it a
problem.

Friendly,
-- 
Petter Reinholdtsen


-- 
To UNSUBSCRIBE, email to [EMAIL PROTECTED] 
with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]



Re: Buffer Image

2006-05-15 Thread Kent West
Petter Reinholdtsen wrote:
 [Indraveni]
   
 ahy this image is displyed. Can any one tell me from where this Image is
 coming and how can I resolve it.
 

 As far as I know this image is stored in the video memory of your
 video card, and is displayed after the video mode is switched and
 before the X server manage to replace the content of the video memory
 with the new content.

   
 Anybody there who is working on it.
 

 I have no idea.  I'm not sure if anyone in the X consider it a
 problem.
   
I've not given it much thought before, but it seems like it could be a
security issue. Wouldn't want the boss seeing an image flash by of your
application for a job with the competitor, etc.

-- 
Kent


-- 
To UNSUBSCRIBE, email to [EMAIL PROTECTED] 
with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]



Re: Buffer Image

2006-05-15 Thread Uwe Hermann
Hi,

On Mon, May 15, 2006 at 06:21:24PM +1000, Hamish Moffatt wrote:
 I think it comes from the RAM on your video card. Basically nothing
 overwrote the image that was there last time the card was in that mode.
 Text mode uses a much smaller (and possibly different) section of the
 RAM.
 
   Anybody there who is working on it.
 
 Is it a problem?
 
 You could blank the RAM somehow if it's important.

How would you do that (in a portable manner)? I think this could be
privacy-relevant sometimes.

I have the following snippet in my .bash_logout for similar reasons:

#--
# When leaving the console clear the screen to increase privacy.
# Also clears the scroll-back buffer.
#--
case $(tty) in
  /dev/tty[0-9])
t=$(v=`tty` ; echo ${v##*ty})
clear
chvt 63; chvt $t
  ;;

  /dev/tty[0-9][0-9])
t=$(v=`tty` ; echo ${v##*ty})
clear
chvt 63; chvt $t
  ;;

  *)
  ;;
esac


Uwe.
-- 
Uwe Hermann 
http://www.hermann-uwe.de
http://www.it-services-uh.de  | http://www.crazy-hacks.org 
http://www.holsham-traders.de | http://www.unmaintained-free-software.org


signature.asc
Description: Digital signature