A) Video Cable connections are loose:Connection at the motherboard, and the connection at the back of the LCD screen, in the Display Assembly.Both need to be checked.[For Toshiba the Video Cable is termed LVDS Cable.Low-Voltage Differential Signaling Cable. I will just keep referring to it as the Video Cable ]B) Video Cable is damaged:Observe the sheath at the motherboard side of the Video Cable?Is there obvious signs of damage to the sheath of the cable?If so, there may also be damage to the tiny, thin wires inside the sheath, of the Video Cable.Due to the routing of the Video Cable under the left Hinge, the Video Cable may be pulled on. This can create a bad connection.Due to the above also, the Video Cable's sheath may be damaged, and the wires inside. A view of the Video Cable by itself,
http://www.batterystyle.com/toshiba-satellite-a205-s5880-cable-p-484063.htmlIf the Video Cable checks out to be OK, the next item is the screen Inverter.To test a screen Inverter you need a sensitive multimeter. This usually means expensive. { Or use a known to be good, compatible screen Inverter } Just thought I would state that. Don't want you to completely disassemble your laptop, just to fix a Video Cable, or screen Inverter. {Or LCD screen)Most consumers decide to just replace the screen Inverter because;1) If the problem isn't the screen Inverter, it is the LCD screen.(A LOT of people buy an LCD screen, when all they really needed was a screen Inverter)An EXPENSIVE part.(LCD screen? $150 to $400 approximately. Screen Inverter? Usually around $22 to $48 )2) The ease of access to replace.As stated, if the problem isn't the screen Inverter, then it is the LCD screen.1) With ALL power removed, AC adapter (Charger), and Battery, remove the Keyboard Bezel, and the Keyboard.This is the motherboard connection side.Display Assembly removed with Video Cable. Now remove the Display Bezel, and LCD screen assembly, to access the Video Cable connection to the back of the LCD screen. {NOTE*The screen Inverter is mounted at the bottom of the LCD screen, and behind the Display Bezel }This shows the Video Cable, and it's connection at the motherboard side,
http://www.irisvista.com/tech/laptops/toshiba-satellite-a205/laptop-disassembly-2.htmScroll down, click on the photo in Step 9.The Video Cable is the cable to the upper Left side. Has one Red arrow pointing to the left.The photo in Step 10 shows the Video Cable disconnected from the motherboard.(This is Page 2 of a disassembly guide. Pages 1 through 4 are available above, and below. Page1::Page2::Page3::Page4::Find another model,in white. Just thought I would state that. Don't want you to completely
disassemble your laptop, just to fix a Video Cable, or screen Inverter, or LCD screen) )2) LCD screen side:
http://www.irisvista.com/tech/laptops/toshiba-satellite-a215/disassemble-display-panel-4.htmhttp://www.insidemylaptop.com/remove-lcd-screen-from-toshiba-laptop/All three links above will help you with checking the connections, or removing the cable to perform a continuity check. (Test)Also with accessing the screen Inverter, and LCD screen.For additional questions please post in a Comment.Regards,joecoolvette