Blank screen after startup

hey,

running windows xp home on an ibm laptop.

I disabled the vga driver and after restart cant see anything after the windows logo / splash screen.

-> restarting in vga mode still wont let me see anything
-> restarting in safe mode hangs at .../Drivers/Mup.sys

not sure how to re enable the vga driver...

thanks for your time.

deez

Reboot your computer, press F8 during the boot process, use the arrow keys to highlight Last Known Good Configuration, and then press ENTER.

last good configuration no good

I have tried that ... unfortunately the last good configuration seems to be with a blank screen aswell.


since... I have attempted to recover with the xp home cd.
from there I could see that the video driver "viaIde" was Disabled.

I enabled it using: "enable viaide service_boot_start" and restarted.

still no good.

->restarting in vga enabled mode still leads to blank screen
->still hangs on ../drivers/mup.sys in safe mode start up.


any other suggestions are much appreciated.

deez

Did a quick search on google found this help thread, near the bottom are some good answers. http://www.cyberiapc.com/forums/index.php?showtopic=5288

Cheers,

nope .. disabling mup.sys didnt help

thanks for your reply.. however

after disabling mup.sys the safe mode startup hangs at ndis.sys

does anyone know the default 'startup_type' value for viaide ?

i've searched around and i think it might be "SERVICE_BOOT_START"

is this a good approach to fixing my blank screen problem ?


thanks

deez

U might just keep running into one hang after another if you keep disabling window services.

Did you try this guys solution?:
I had the same problem with a machine with a ECS K7S5A-Pro. The machine ran fine once built, but after a few months it would not load WinXP and would reboot everytime after loading mup.sys. Having gone through numerrous threads I undertood that this is a motherboard problem where it cannot access/read/boot from certain Hard drives. To fix the problem I booted from WinXP disk (you can use floppy or cd rom) then choose repair option. Then use the fixboot option to fix the bootstrap (the command is similar to fixboot cant remember exactly). You can see the right command by typing help in the repair console. Once I fixed the bootstrap, the problem was fixed.
or this solution?:
Hi there. I am a PC Tech and have come accross this several times.
The main cause of this, is BIOS level virus protection. Mostly Trend Chipguard. What this does, is prevent changes being made to the MBR (Master Boot Record)
To stop this from happening, you will need to go into your BIOS and turn off bios protection. (Or simply restore defaults. This feature is NOT turned on by default, for a very good reason.)
It can also be caused when upgrading if you have multiple UNC protocols installed, for example Client for Novell Networks.
If this is the case, booting to the recovery console and typing disable MUP will work. If caused by bios virus guard however, this will do nothing. An update writes to the MBR saying do this before you next restart, but if this sector is protected, this can not happen - therefore, stall.
and finally this guy writes:
I had this problem today when I installed SP2 for XP. Boot would lock up, safe mode indicated it was locking up at MUP.SYS. I updated the MB BIOS (Asus P42800 mobo) and it booted fine.

problem not mup.sys

hi again.

so my problem originated when i manually disabled the vga video card in windows xp home.

ever since .. nothing is displayed after the windows splash screen.

I have tried those solutions and nothing allows me to reboot in safe mode without hanging at mup.sys.

however the couse of my problem seems totally different then all the others mentioned.

I am hoping there is a way to enable the vga driver that i disabled and just restart normally and not in safemode.

thanks

Physically remove that vid card from the system and do a clean boot...
Now power down and re-install the vid card and re-boot...
Windows will recognise new hardware and ask for the drivers...

patio.

cant physically remove video card from laptop

sorry, I am unable to remove anything from the laptop.

Does anyone know if I there are other drivers that I need to manipulate in the xp recovery console that will reverse my disabling the vga driver ?

thanks

deez

Because it's on-board video and you can't do what Patio suggested you need to either "fix" the Mup.sys prob (as above) so you can get into safe mode or prob just easier, reinstall XP over itself. Did you/can you? get into BIOS and make sure on-board video is turned on?

IBM BIOS Setup Utility

I am able to enter the IBM BIOS Setup Utility by pressing F1 during startup.

however I am not sure what to look for.

I have reset everything to defaults (F9) ..but still no progress.


How can I find if the onboard video is turned on?
Is there another means to enter the BIOS ?

thanks again

try re installing xp.

If you set the BIOS to fail safe defaults, then on-board video would be enabled. So that's a dead end again. Once Windows loads your video is turned off. Your best solution I think is re-install XP. This can be done without losing your data. Some things will be over written, like all the drivers will be set to default windows drivers, but your personnal files will remain.

re install question

I have the XP home cd and I have attempted to repair the installation but it changed nothing.

How can I reinstall XP without losing all my files ?

Is anyone aware of any good resources that can aid me in reinstalling xp home without losing my info ?

thanks

deez

Win XP can install itself again without losing your data.
Here's a link: http://michaelstevenstech.com/XPrepairinstall.htm
EDIT: or this one at MS help:http://support.microsoft.com/default.aspx?scid=kb;en-us;315341

blank screen fixed but hanging at Mup.sys

Kirock, thanks for your time and suggestions...

I did the repair/ reinstall and now after the Windows XP home spash screen the system hangs at a blue Windows XP Home screen that says:

"Setup is being restarted ......."

Starting in safe mode hangs at Mup.sys

I've tried to repair the boot.ini file using previous posts... but with no success.

Maybe some specific instructions to fix the Mup.sys problem will help.

thanks again

Hi, boy you just are having no luck with this "macheen"!
From my previous post 10/27/05 I read the MUP.sys prob is related to a boot.ini error so you might try the following procedure.

Possible Fix by reconfiguring boot.ini using Recovery Console.

1.Boot with XP CD or 6 floppy boot disk set.

2. Press R to load the Recovery Console.

3. Type bootcfg.

4. This should fix any boot.ini errors causing setup not to see the XP OS
install.

5. Try the repair install.


One more suggestion from MVP Alex Nichol

"Reboot, this time taking the immediate R option, and if the CD letter is say K: give these commands

copy K:\i386\ntldr C:\
copy K:\i386\ntdetect.com C:\


(two other files needed - just in case)

1. Type: attrib -h -r -s C:\boot.ini del C:\boot.ini

2. Type: BootCfg /Rebuild

which will get rid of any damaged boot.ini, search the disk for systems and make a new one. This might even result in a damaged windows reappearing; but gives another chance of getting at the repair

now looping at startup after mup.sys

okay,

so i tried the 'bootcfg' \rebuild command using

"Microsoft Windows XP Home edition" as the load identifier

and

"/fastdetect" as the OS load option.

also deleted the boot.ini file...

now im looping during startup... safemode shows its happening after mup.sys

son of a %$@*!!!

Im getting desperate.

Thanks for your help so far, I appreciate any more suggestions

deez

formatted .. lost all my info..

Sorry guys,

I gave up.

thanks for your help

Deeznuts

Sorry Deez,
I didn't respond because I was trying to solicit some more help for you, another member or two with more knowledge then me.:knock:
Tell me the reformat worked! What a bummer though. :dead: