Sounds like a driver issue. Check your drivers by going to: Start>Control Panel>Performance and Maintenance>System>Hardware Tab>Device Manager. Look for any yellow exclamation marks. This means the driver is bad and needs to be reloaded. Hope this helps.
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1.FIRST YOU DO ONE THING IF YOU USING XP OS MEANS CHANGE THE SATA MODE TO IDE OTHER WISE CHANGE THE SATA MODE TO AICH. 2.IF BOOT WITH CD MEANS CHANGE BOOT PRIORITY CD/DVD ROM 2.IF YOU BOOT WITH HDD MEANS CHOOSE HDD. BIOS OPTION----CONTINUOSLY PRESS F2 KEY.
Hi, Restart your computer press F8 key from the displayed option select safe mode. After entering in to the safe mode go to device manager in my computer property, Hardware option. In that remove the display driver and restart your PC.
When you power up the computer press F8 key 5 to 6 times then you can see safe mode and other menu enter in "Enable vga mode" then go to start->control panel->display->settings. Change screen resolution to 1024*768 then apply . But if you are not able to enter in VGA mode . Then enter in safe mode and uninstall graphic driver then reinstall then set screen resolution to 1024*768 then apply. Let me know if you need further assistance. Thanks for using FixYa.
This is unfortunate, as that points at a display problem which in my
experience with these laptops comes with very little chance of repair. In
my opinion it is caused by overheating of graphics processor due to the
portege's relative small build. The fix would require dissasembly of
entire laptop and re-soldering of graphics processor. This takes a
technician using a microscope equipped station,( my father does this and makes over $40 an hour and I bet his company charges more. It is not cheaper than
some new laptop models available today. The non-expensive fix but risky,
would be to disassemble board and attempt to re-flow graphics processor
connections by heating with heat gun. When I attempted this I lost
entire display. My recommendation is to use external monitor if possible,
which may prove futile since issue with graphics will likely be visible
on that too. good luck
You can press F8 repeatedly while booting to get the Boot options screen. It should contain a VGA Mode - this will boot your regular desktop with a lower resolution. Once in windows adjust the screen resolution to one that your Monitor supports.
Right click the desktop anywhere. Choose properties. Go to the right most tab "settings". Slide the screen resolution option until its where you want it. Click Apply. Do Not Hit any keys on the keyboard. Wait until it finishes changing resolution than click Ok. Close the Window.
If your screen goes black during this waiting 30 seconds should automatically revert it to the previous settings.