I have a problem on my HP dm1 laptop. This problem affects all displays, either the built in, or via the VGA or HDMI connections.
The problem is that the screen becomes "fuzzy" (capture image in http://dl.dropbox.com/u/1076277/desktop_problem.jpg ). If I refresh the window, or move it out of the display and back in, or if it is the desktop, select an area, that bit goes away - so if I have two windows side by side, I have to do it to one, then the other. Re-scaling also works. I still haven't really figured out what triggers it. I thought it was memory, but it happens while only running Firefox with a couple of tabs. It is specially bad with pdf files - sometimes I can't even read, because as soon as I move the page, it "fuzzes up".
I don't know if it's related, but while watching videos, sometimes the screen goes all dark and slowly, as the scene moves, it clears again - resizing or jumping fixes it immediately. It happens even with low res videos (640x480)
The laptop came from the factory running Win7 32, and it started a few months after I bought it - I thought it was just a software issue and didn't bother sending it to HP - fool me!
If I'm not mistaken, it might have happened after some updates. But since it's intermittent, it might have been before and I never noticed.
I have since reinstalled Windows 7 32, installed Win 7 64 and a few months ago, upgraded to Win 8 64 via a clean Win 7 64 installation. All installations were clean, from scratch, formatting the c: partition and reinstalling all software - no images, no recoveries, so drivers and software were always new.
It happens on other displays, so it's not display related. It "clears up" by moving/resizing/refreshing the windows, so I can't believe it's hardware (on-board graphic card) related. The only think I can think of is drivers, but Win automatically found the "right" drivers and never complained...
HP only has drivers for Win 7 32, but as I said, it happens with Win 7 32 as well.
I really want to get this sorted, as otherwise, it's not a bad machine, specially to take on holidays if I need more than just a tablet. Or to use a home server...
The problem is that the screen becomes "fuzzy" (capture image in http://dl.dropbox.com/u/1076277/desktop_problem.jpg ). If I refresh the window, or move it out of the display and back in, or if it is the desktop, select an area, that bit goes away - so if I have two windows side by side, I have to do it to one, then the other. Re-scaling also works. I still haven't really figured out what triggers it. I thought it was memory, but it happens while only running Firefox with a couple of tabs. It is specially bad with pdf files - sometimes I can't even read, because as soon as I move the page, it "fuzzes up".
I don't know if it's related, but while watching videos, sometimes the screen goes all dark and slowly, as the scene moves, it clears again - resizing or jumping fixes it immediately. It happens even with low res videos (640x480)
The laptop came from the factory running Win7 32, and it started a few months after I bought it - I thought it was just a software issue and didn't bother sending it to HP - fool me!
If I'm not mistaken, it might have happened after some updates. But since it's intermittent, it might have been before and I never noticed.
I have since reinstalled Windows 7 32, installed Win 7 64 and a few months ago, upgraded to Win 8 64 via a clean Win 7 64 installation. All installations were clean, from scratch, formatting the c: partition and reinstalling all software - no images, no recoveries, so drivers and software were always new.
It happens on other displays, so it's not display related. It "clears up" by moving/resizing/refreshing the windows, so I can't believe it's hardware (on-board graphic card) related. The only think I can think of is drivers, but Win automatically found the "right" drivers and never complained...
HP only has drivers for Win 7 32, but as I said, it happens with Win 7 32 as well.
I really want to get this sorted, as otherwise, it's not a bad machine, specially to take on holidays if I need more than just a tablet. Or to use a home server...