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It detects a nonexistent second monitor - the cursor goes out of view
Please take into consideration that I'm translating terms from my language, so the actual Win7 options names can be different.
Post edited for recapitulation of the problem.
Sometimes my cursor goes out of view (to the right). I know that the cursor is almost invisible when it hits the right, but it's not that, it's actually going far off the screen and I have to move the mouse a lot back before seeing the cursor again.
This happens because windows detects a second nonexistent monitor.
If I go to "Screen resolution" and I click "Detect", another monitor appears on the right, near the first one; and it says: "another display not detected".
Clicking on it it says:
Screen: disponible output screen for: ATI Radeon HD 5700 Series.
When I first log in, the mouse stops where it's supposed to stop. I discovered that the "bug" happens when I logoff and log in with another user. When logging off and returning to my account, if I move the mouse at the right edge, it goes off the screen, on the ghost monitor to the right.
So I have to go to screen resolution, clicking "Detect" and "OK" and then everything gets ok.
This problem is annoying because sometimes you just happen to lose your pointer.
Also, closing a fully maximized window with the "X" is annoying because the cursor goes too far and don't hit the "X" button. You have to slowly point at it, you can't do fast moves.
On the Monitors category of Device Manager there's only one monitor:
generic monitor plug and play. ID hardware PHLC074, which seems correct since its Philips.
I'm using VGA (connected on the VGA input of my ASUS EAH5770 CUcore).
I played on the "Screen resolution" window a lot, but whatever thing I do the problem re-appears the next time I load the OS and I log in with multiple accounts.
My monitor is 246EL2SBH Philips, my GPU the ASUS EAH5770 CUcore and my motherboard it's PC-AM3RS890G (Sapphire).
Monitor's and GPU's latest drivers are installed.
What I tried
Formatting Windows. So it's not about old monitors/old GPUs.
Using "Screen resolution" to disable the ghost monitor.
Using AMD Catalyst control center to disable the ghost monitor.
dsperber seems to have that problem too. Please see its post so you can also see an image with the problem (he has two monitors and the third nonexistent one appears on the right; I have one monitor and the ghost as the second one): It detects a nonexistent second monitor - the cursor goes out of view
Is this a bug of Windows 7?
Last edited by 255; 30 Aug 2012 at 15:37.