Sorry, my system hiccuped when I was putting in my original post.
A couple of weeks ago, I noticed that when my system would shut down, and the blue Windows background for the login screen would disappear, the lower 1/4 of my screen would start going very white, almost like the contrast getting turned way up on the display panel, and the lower left and lower right corners of the screen would go all white for about 1/4" on a side.
I called into support, who ran me through some diags, with and without an external monitor. With the external monitor, the screen would auto-scale back to 1280 x 1024 (it's a WUXGA panel, normally running at 1920 x 1200) and it wouldn't seem to do it.
So far, this is what's been done to try and fix the problem:
1) Sent out a replacement video card. Swapped it out myself, didn't make any difference.
2) Sent out a replacement display. Swapped it myself, didn't make any difference.
3) Technician came out on-site and swapped out system board, LCD and video card, all at the same time. On the first boot/shutdown sequence, seemed to be OK, though subsequent shutdowns had the same problem occuring.
I called back in again, and they're suspecting that it might be the DC-DC converter being a little funny, due to a possibly suspect AC adapter. They're setting it up for a new onsite (hopefully tomorrow), with a new system board, LCD, video card and AC adapter. Hopefully this will take care of it. If not, it's getting sent in via mail-in service, and they're going to do a board-level check on it, which means I'm out of pocket with it for three days or more.
Anyone else have this problem, or something like it? Moderators, have you heard of this issue before?
When I had the system running off of battery, and not connected to my (suspect) AC adapter, when I shut the system down, I did get the screen partially in the Windows logon background color, and the rest of the screen in black, though I didn't get the whitening of the screen that did happen in the past in the "black" area of the screen.
Does that give more weight to the AC adapter being part of the issue, and causing problems with the DC-DC converter? Also, do you think that the battery is affected in any way?
BTW, I posted about this problem a while back and got no responses. I have a D800 with the latest drivers, and had the disappearing cursor problem. With the new drivers I get the partial blacking out of the windows off screen just before the system shuts down. This problem does not appear to be manifest anywhere else in my system, so I have not done anything about it, hoping that an update to the video driver will fix this, and all the other problems I have with the D800 video.
shrike4242
5 Posts
0
November 4th, 2003 13:00
Sorry, my system hiccuped when I was putting in my original post.
A couple of weeks ago, I noticed that when my system would shut down, and the blue Windows background for the login screen would disappear, the lower 1/4 of my screen would start going very white, almost like the contrast getting turned way up on the display panel, and the lower left and lower right corners of the screen would go all white for about 1/4" on a side.
I called into support, who ran me through some diags, with and without an external monitor. With the external monitor, the screen would auto-scale back to 1280 x 1024 (it's a WUXGA panel, normally running at 1920 x 1200) and it wouldn't seem to do it.
So far, this is what's been done to try and fix the problem:
1) Sent out a replacement video card. Swapped it out myself, didn't make any difference.
2) Sent out a replacement display. Swapped it myself, didn't make any difference.
3) Technician came out on-site and swapped out system board, LCD and video card, all at the same time. On the first boot/shutdown sequence, seemed to be OK, though subsequent shutdowns had the same problem occuring.
I called back in again, and they're suspecting that it might be the DC-DC converter being a little funny, due to a possibly suspect AC adapter. They're setting it up for a new onsite (hopefully tomorrow), with a new system board, LCD, video card and AC adapter. Hopefully this will take care of it. If not, it's getting sent in via mail-in service, and they're going to do a board-level check on it, which means I'm out of pocket with it for three days or more.
Anyone else have this problem, or something like it? Moderators, have you heard of this issue before?
DELL-Corey
2.6K Posts
0
November 4th, 2003 17:00
Thank you for using Dell's Community Forum.
The DC-DC converter on the motherboard seems like the next logical choice for repair.
shrike4242
5 Posts
0
November 4th, 2003 18:00
As I had it explained to me, the DC-DC converter is part of the system board. Is this the case?
--- Jeff
DELL-Corey
2.6K Posts
0
November 5th, 2003 16:00
Technically it can be thought of as a separate part, but yes, for our (Dell’s) purposes it is part of the motherboard.
shrike4242
5 Posts
0
November 5th, 2003 17:00
Corey,
When I had the system running off of battery, and not connected to my (suspect) AC adapter, when I shut the system down, I did get the screen partially in the Windows logon background color, and the rest of the screen in black, though I didn't get the whitening of the screen that did happen in the past in the "black" area of the screen.
Does that give more weight to the AC adapter being part of the issue, and causing problems with the DC-DC converter? Also, do you think that the battery is affected in any way?
----- Jeff
DELL-Corey
2.6K Posts
0
November 6th, 2003 19:00
No, I don’t think the battery is malfunctioning.
gandini
51 Posts
0
November 8th, 2003 20:00
BTW, I posted about this problem a while back and got no responses. I have a D800 with the latest drivers, and had the disappearing cursor problem. With the new drivers I get the partial blacking out of the windows off screen just before the system shuts down. This problem does not appear to be manifest anywhere else in my system, so I have not done anything about it, hoping that an update to the video driver will fix this, and all the other problems I have with the D800 video.
cheers,