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General discussion

Samsung p2250 res problems after reboot

Jul 4, 2009 1:30AM PDT

I just bought a new Samsung SyncMaster P2250. Native resolution is 1920x1080. I connected it to my laptop yesterday via a docking station. It all worked perfectly. Resolution was correct, wide screen aspect ratio was correct. In fact, it was working perfectly until I rebooted this morning.

Today, it starts with two large black bands either side of the display. When I change the screen resolution to 1920x1080 (display-properties-settings) the image gets stretched across the screen. When I change the monitor display from 'wide' to 'auto', I'm back to a having the display with two large dark bands either side.

I have removed and readded the Samsung display driver. This doesn't help. I've adjusted the HW acceleration rate and refresh rate this doesn't help either

As the display worked correctly yesterday, and not today, what has happened in the mean time??

Discussion is locked

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I read your post twice
Jul 4, 2009 2:18AM PDT
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got it working on day 2 but not on day 3
Jul 5, 2009 8:43AM PDT

I have the laptop lid closed, so am just using the monitor. I updated the intel chipset and still no luck. I got it working yesterday after uninstalling the samsung driver. But when I started again today it was having the same issues. And i just can't get it working now. Back to stretched image. I have a HP laptop nc 6220 with an Intel chipset

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"laptop lid closed"
Jul 5, 2009 8:54AM PDT

Wow. The number of issues that has created is nearly uncountable. That issue is widely discussed and I've come down to a final fix. Modify the laptop so the laptop lid sensor is disabled.

I still see no answer here. I dropped a hint that the mode used (NOT THE VIDEO MODE) to extend or mirror the desktop matters. On my simple netbook the Intel driver is nice enough to make it almost easy. I think many will still have trouble. Example picture.

http://buriedtricks.blogspot.com/2008/04/extend-desktop-problem-on-notebook-with.html

Look at the first screen shot and with that exact setup I can have the external as primary and the laptop screen as secondary.

But since you are closing the lid all bets are off. It's a known black hole so I won't go near that one. Good luck!
Bob

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txs Bob
Jul 5, 2009 8:40PM PDT

Thank you Bob.
While I am trying to get it working with the lid closed, I will try the other option of lid open. I'm just frustrated that I got it working for 2 days and on day 3 it decides.... "I don't like you any more!"
Technology... eh? Mind you, I won't be chucking my laptop out any time soon! Wink

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possible fix
Jul 19, 2009 9:56PM PDT

For anyone with a similar issue as mine; I found by uninstalling the plug & play monitor and the Samsung monitor, then restarting the laptop, the OS reverts to a default monitor setting and it runs happily with the Samsung monitor, I also find that it may take a couple of restarts to make this happen!

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Nothing special is needed
Jul 20, 2009 12:09AM PDT

to make the nc6220 work with an external monitor with Microsoft Windows XP and Vista. HP business notebooks usually have a video output toggle capability (read your user guide) between internal-only (ie. laptop display), external-only (ie. monitor) and both. If set to both, the external can only be the same or less resolution than the internal. You have to toggle to external-only to get native monitor resolution. If you are using an HP Dock via the docking port and using all HP provided drivers for your OS (download from hp.com), the output automatically switches between internal and external (it assumes when you dock and boot up that you want monitor output).