LinuxAnswers - the LQ Linux tutorial section.
Go Back > Forums > Linux Forums > Linux - Newbie
User Name
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!


Search this Thread
Old 03-07-2013, 01:24 PM   #1
LQ Newbie
Registered: Sep 2011
Location: UK
Distribution: Puppy 528
Posts: 20

Rep: Reputation: Disabled
curious black lines on screen, just started appearing

I've been running a full-install Puppy 5.28 on this machine trouble-free for about a year now, (and very happy with it!) but have encountered a problem today which is making life virtually impossible.

The problem seems to be specific to this installation; I have other OS's on this machine which are starting normally, and I am at this moment working normally in an instance of Puppy loaded from a live CD, so I feel reasonably sure it's not the hardware that's the problem.

When switched off last night, everything working normally, and I have done no recent fiddling with any settings, so the fault is apparently spontaneous. My screen is showing random vertical and horizontal black lines, sometimes angled ones, sometimes fanned ones, occasionally a small black box. Initial screen display on starting up builds very slowly indeed, and icons take a long time to appear, and are sometimes corrupted. When I click on any icon or work through any menu, any response takes a good 30-60 seconds, which makes me think that all the system resources are being soaked up by the system's efforts to put something sensible on the screen?

The only thing it's occurred to me to try is to run Puppy's XOrg 'Wizard', which probes the hardware and reports back that everything should work normally. The wizard exits the X session to do its work... it's when it restarts X that things go wrong again.

Hugely grateful in advance! In the forlorn hope that it might help, here is my xorg.conf

#Special base config file used in Puppy Linux.

# **********************************************************************
# Module section -- this  section  is used to specify
# which dynamically loadable modules to load.
# **********************************************************************
Section "Module"

# This loads the DBE extension module.

    Load        "dbe"  	# Double buffer extension

# This loads the miscellaneous extensions module, and disables
# initialisation of the XFree86-DGA extension within that module.
    SubSection  "extmod"
      Option    "omit xfree86-dga"   # don't initialise the DGA extension

# This loads the font modules
#    Load        "type1"
#    Load        "freetype"

# This loads xtrap extension, used by xrandr
#   Load       "xtrap"

# This loads the GLX module (if present). xorg 7.4/5 need explicit disable to disable...
    Load    "glx" #LOADGLX

# This loads dri module (if present). 7.4 loads it by default, have to disable...
   Load       "dri" #LOADDRI
#    Disable "dri"


# **********************************************************************
# Files section.  This allows default font paths to be set
# **********************************************************************

Section "Files"

# Multiple FontPath entries are allowed (which are concatenated together),
# as well as specifying multiple comma-separated entries in one FontPath
# command (or a combination of both methods)

    FontPath   "/usr/share/X11/fonts/misc/"
    FontPath   "/usr/share/X11/fonts/Type1/"
    FontPath   "/usr/share/X11/fonts/TTF/"


# **********************************************************************
# Server flags section.
# **********************************************************************

Section "ServerFlags"

# Uncomment this to disable the <Crtl><Alt><Fn> VT switch sequence
# (where n is 1 through 12).  This allows clients to receive these key
# events.

#    Option "DontVTSwitch"

# Enables mode switching with xrandr
# There is a report that this can cause Xorg not to work on some
# video hardware, so default is commented-out...
# but i want to use it in xorgwizard so leave on...

    Option "RandR" "on"

# With this, Xorg won't talk to HAL to add evdev devices and you'll be back
# with the old Xorg behavior (pre-7.4)...

    Option "AutoAddDevices" "false"

# For no-Hal, kirk also suggests this...

#    Option "AllowMouseOpenFail" "true"

# Xorg 7.4, Ubuntu Jaunty, CTRL-ALT-BACKSPACE is disabled by default...

    Option "DontZap" "false"


#everything past here is auto-generated by Puppy's Xorg Wizard...

Section "ServerLayout"
	Identifier     " Configured"
	Screen      0  "Screen0" 0 0
	InputDevice    "Mouse0" "CorePointer"
	InputDevice    "Keyboard0" "CoreKeyboard"

Section "InputDevice"
	Identifier  "Keyboard0"
	Driver      "kbd"
	Option      "XkbRules" "xorg"
	Option      "XkbModel" "pc102"
	Option      "XkbLayout" "gb" #xkeymap0

Section "InputDevice"
	Identifier  "Mouse0"
	Driver      "mouse"
	Option	    "Protocol" "IMPS/2" #mouse0protocol
	Option	    "Device" "/dev/mouse"
	#Option      "Emulate3Buttons"
	#Option      "Emulate3Timeout" "50"
	#Option      "ZAxisMapping" "4 5" #scrollwheel

Section "Monitor"
	Identifier   "Monitor0"
	VendorName   "Monitor Vendor"
	ModelName    "Monitor Model"
	HorizSync    31.5-100
	VertRefresh  59-75
	#UseModes     "Modes0" #monitor0usemodes
	Option      "PreferredMode" "1440x900"
Section "Modes"
	Identifier "Modes0"

Section "Device"
	Identifier  "Card0"
	Driver      "nvidia" #card0driver
	VendorName  "nVidia Corporation"
	BoardName   "NV44A [GeForce 6200]"
	BusID       "PCI:1:0:0"

Section "Screen"
	Identifier "Screen0"
	Device     "Card0"
	Monitor    "Monitor0"
	DefaultDepth 16
	#Option         "metamodes" "1440x900_60 +0+0" #METAMODES_0
	Subsection "Display"
		Depth       16
		Modes       "1440x900"

Old 03-07-2013, 01:30 PM   #2
Registered: Oct 2012
Location: Maryland
Distribution: Fedora, Slackware, Debian, Ubuntu, Knoppix, Helix,
Posts: 290
Blog Entries: 7

Rep: Reputation: 43
I don't use puppy, but this sounds like a driver problem if it is starting right in all of your other OSs.
Old 03-07-2013, 04:16 PM   #3
LQ Newbie
Registered: Sep 2011
Location: UK
Distribution: Puppy 528
Posts: 20

Original Poster
Rep: Reputation: Disabled
Thanks for that thought. I'm sorry, but I really am a bit of a newbie. Now that I know that it's a driver problem, what the heck do I *do* about it?

I kind of thought that what the wizard would do, would be to install (or re-install) the driver once it had probed the hardware. I'd be grateful for any advice on how to re-install the driver manually, because that's something I've never done!


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
black screen on bootup after a few lines (slack 13.37) Agni Slackware 23 08-06-2013 09:42 PM
Can't shut down screen is all white with black lines Mr.Carioca Ubuntu 1 02-03-2008 09:12 AM
Started up Mandrake 10.1 and screen goes black. ajh30 Linux - Laptop and Netbook 2 02-15-2006 08:39 AM
KDS VS-195e -- Black lines on screen? Adrohak Linux - Hardware 2 07-28-2004 02:12 PM
KDS VS-195e -- Black lines on screen? Adrohak Linux - General 1 07-27-2004 04:22 PM

All times are GMT -5. The time now is 08:01 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration