Video Problem

HP Pavilion Elite e9240f desktop computer
Windows 7 Home Premium (64 bit)
ATI Radeon HD4650 video card

Everything was fine until I booted up this morning. Now, all I get is a
blinking cursor in the lower left corner of a black screen and white lines
running back and forth along the very bottom of the screen. Here is what
I've tried so far:

* F8 and F11 (System Recovery) - same result
* unscrewed the caps for the integrated VGA and DVI inputs, and tried those
instead - same result
* removed ATI Radeon video card and tried another standalone video card -
same result

This is really perplexing and I can't think of anything else to try. Does
anyone have any other ideas? All input is appreciated.

Thanks!

On Sun, 10 Jun 2012 08:30:39 -0700, "Dell Christopher"
<> wrote:

>HP Pavilion Elite e9240f desktop computer
>Windows 7 Home Premium (64 bit)
>ATI Radeon HD4650 video card
>
>Everything was fine until I booted up this morning. Now, all I get is a
>blinking cursor in the lower left corner of a black screen and white lines
>running back and forth along the very bottom of the screen. Here is what
>I've tried so far:
>
>* F8 and F11 (System Recovery) - same result
>* unscrewed the caps for the integrated VGA and DVI inputs, and tried those
>instead - same result
>* removed ATI Radeon video card and tried another standalone video card -
>same result
>
>This is really perplexing and I can't think of anything else to try. Does
>anyone have any other ideas? All input is appreciated.
>
>Thanks!

I'd try using a trusted monitor lead, and then another monitor. If you
haven't got them, try using your monitor and lead on another PC to
eliminate them from your bin list.

On 10/06/2012 16:30, Dell Christopher wrote:
> HP Pavilion Elite e9240f desktop computer
> Windows 7 Home Premium (64 bit)
> ATI Radeon HD4650 video card
>
> Everything was fine until I booted up this morning. Now, all I get is a
> blinking cursor in the lower left corner of a black screen and white lines
> running back and forth along the very bottom of the screen. Here is what
> I've tried so far:
>
> * F8 and F11 (System Recovery) - same result
> * unscrewed the caps for the integrated VGA and DVI inputs, and tried those
> instead - same result
> * removed ATI Radeon video card and tried another standalone video card -
> same result
>
> This is really perplexing and I can't think of anything else to try. Does
> anyone have any other ideas? All input is appreciated.
>
> Thanks!
>

Can you boot to the Bios screen?

--

Jeff

Jeff Layman wrote:
> On 10/06/2012 16:30, Dell Christopher wrote:
>> HP Pavilion Elite e9240f desktop computer
>> Windows 7 Home Premium (64 bit)
>> ATI Radeon HD4650 video card
>>
>> Everything was fine until I booted up this morning. Now, all I get is a
>> blinking cursor in the lower left corner of a black screen and white
>> lines
>> running back and forth along the very bottom of the screen. Here is what
>> I've tried so far:
>>
>> * F8 and F11 (System Recovery) - same result
>> * unscrewed the caps for the integrated VGA and DVI inputs, and tried
>> those
>> instead - same result
>> * removed ATI Radeon video card and tried another standalone video card -
>> same result
>>
>> This is really perplexing and I can't think of anything else to try. Does
>> anyone have any other ideas? All input is appreciated.
>>
>> Thanks!
>>
>
> Can you boot to the Bios screen?
>

That would rule out a blown monitor.

Ed

Ed Cryer wrote:

> Jeff Layman wrote:
>
>> Dell Christopher wrote:
>>
>>> Everything was fine until I booted up this morning. Now, all I get
>>> is a blinking cursor in the lower left corner of a black screen and
>>> white lines running back and forth along the very bottom of the
>>> screen.
>>
>> Can you boot to the Bios screen?
>
> That would rule out a blown monitor.

That's what I was thinking, especially if it were a CRT monitor. The OP
mentioned DVI and few CRT monitors had a digital signal input; however,
the IBM P260, a CRT monitor, had a DVI input. It didn't use any digital
info, just analog via DVI-A (DVI analog only). If it were a CRT
monitor, having all the lines squashed together in one place means there
is a vertical scan problem so the deflection yoke or the circuits to it
(e.g., bad capacitor, flyback diode) are defective.

http://www.repairfaq.org/REPAIR/F_mo...tml#MONFAQ_013

In any case, the symptom described looks to be a problem with the
monitor. Adjusting the vertical sync rate (on the monitor) beyond the
capability of the logic could also result in lack of vertical scanning.
The OP didn't say if the problem exists at a cold boot when the BIOS
screen is displayed (which doesn't involve any OS or any drivers
installed in it) or only after Windows has loaded (which could be the
result of tweaking the display qualities to outside the specs the
monitor can handle).

On Sun, 10 Jun 2012 18:26:35 +0100, Ed Cryer wrote:

>>> Everything was fine until I booted up this morning. Now, all I get is a
>>> blinking cursor in the lower left corner of a black screen and white
>>> lines
>>> running back and forth along the very bottom of the screen. Here is what
>>> I've tried so far:
>>>
>>> * F8 and F11 (System Recovery) - same result
>>> * unscrewed the caps for the integrated VGA and DVI inputs, and tried
>>> those
>>> instead - same result
>>> * removed ATI Radeon video card and tried another standalone video card -
>>> same result
>>>
>>> This is really perplexing and I can't think of anything else to try. Does
>>> anyone have any other ideas? All input is appreciated.
>>>
>>> Thanks!
>>>
>>
>> Can you boot to the Bios screen?
>>
>
>That would rule out a blown monitor.

Doesn't the blinking cursor also rule out a blown monitor?

--
Regards - Rodney Pont
The from address exists but is mostly dumped,
please send any emails to the address below
e-mail rpont (at) gmail (dot) com

"Dell Christopher" <> wrote in message
news...
> HP Pavilion Elite e9240f desktop computer
> Windows 7 Home Premium (64 bit)
> ATI Radeon HD4650 video card
>
> Everything was fine until I booted up this morning. Now, all I get is a
> blinking cursor in the lower left corner of a black screen and white lines
> running back and forth along the very bottom of the screen. Here is what
> I've tried so far:
>
> * F8 and F11 (System Recovery) - same result
> * unscrewed the caps for the integrated VGA and DVI inputs, and tried
> those instead - same result
> * removed ATI Radeon video card and tried another standalone video card -
> same result
>
> This is really perplexing and I can't think of anything else to try. Does
> anyone have any other ideas? All input is appreciated.
>
> Thanks!

It's a video problem.
OK, you tried system recovery and changed your video card. The latter is the
most important. I would think it's Windows or your Mobo.
Try to reinstall Windows and try to save your personal files beforehand on a
USB drive. Recover them afterwards.
Otherwise, try another Mobo.

Fokke

Jeff Layman wrote:
> On 10/06/2012 16:30, Dell Christopher wrote:
>> HP Pavilion Elite e9240f desktop computer
>> Windows 7 Home Premium (64 bit)
>> ATI Radeon HD4650 video card
>>
>> Everything was fine until I booted up this morning. Now, all I get is a
>> blinking cursor in the lower left corner of a black screen and white
>> lines
>> running back and forth along the very bottom of the screen. Here is what
>> I've tried so far:
>>
>> * F8 and F11 (System Recovery) - same result
>> * unscrewed the caps for the integrated VGA and DVI inputs, and tried
>> those
>> instead - same result
>> * removed ATI Radeon video card and tried another standalone video card -
>> same result
>>
>> This is really perplexing and I can't think of anything else to try.
>> Does
>> anyone have any other ideas? All input is appreciated.
>>
>> Thanks!
>>
>
> Can you boot to the Bios screen?
>

I think trying to enter the BIOS screen is a good test, because it
allows video display quality to be checked without loading an OS.
Even if the result isn't a high resolution test, and isn't very
colorful.

At the same time, you can check the storage page in the BIOS,
and verify that the disk drive (disk drive name) is showing up.

Being a curious kinda guy, I might be tempted to pull the
other card showing in this picture. It could be a TV tuner card.
Pulling stuff out of the computer, is all part of a "simplify
and retest" strategy.

http://www2.pcmag.com/media/images/2...9240f-back.jpg

Paul

Many thanks for the responses. I failed to mention that I have also tried 3
separate monitors.

Also, I do see the light blue HP splash screen with the various F key
options at the bottom when I power up the computer. But, whether I hit F8
or F11, it still goes to that black screen with the stuff at the bottom.
So, even though I have backed up my data, I don't have the option of simply
doing the System Recovery.


"Fokke Nauta" wrote in message news:...


"Dell Christopher" <> wrote in message
news...
> HP Pavilion Elite e9240f desktop computer
> Windows 7 Home Premium (64 bit)
> ATI Radeon HD4650 video card
>
> Everything was fine until I booted up this morning. Now, all I get is a
> blinking cursor in the lower left corner of a black screen and white lines
> running back and forth along the very bottom of the screen. Here is what
> I've tried so far:
>
> * F8 and F11 (System Recovery) - same result
> * unscrewed the caps for the integrated VGA and DVI inputs, and tried
> those instead - same result
> * removed ATI Radeon video card and tried another standalone video card -
> same result
>
> This is really perplexing and I can't think of anything else to try. Does
> anyone have any other ideas? All input is appreciated.
>
> Thanks!

It's a video problem.
OK, you tried system recovery and changed your video card. The latter is the
most important. I would think it's Windows or your Mobo.
Try to reinstall Windows and try to save your personal files beforehand on a
USB drive. Recover them afterwards.
Otherwise, try another Mobo.

Fokke

Dell Christopher wrote:
> Many thanks for the responses. I failed to mention that I have also
> tried 3 separate monitors.
>
> Also, I do see the light blue HP splash screen with the various F key
> options at the bottom when I power up the computer. But, whether I hit
> F8 or F11, it still goes to that black screen with the stuff at the
> bottom. So, even though I have backed up my data, I don't have the
> option of simply doing the System Recovery.
>
>
As an outside chance, have you tried a different keyboard?

If it's not responding to the Motherboard's check for a keyboard at
boot, that could give the symptoms you describe.

--
Tciao for Now!

John.