I have the samsung LE40M86BD LCD TV and cannot get a 1080p picture from my htpc.
Setup is as follows:
Pentium D 945 PC 3.4GHz
Windows XP MCE
Nvidia 7600GS (by inno3d)
Forceware 91.37 drivers (as supplied with graphics card)
Samsung TV - supports 1080p over component, VGA and HDMI
PC -> TV using 10m HDMI cable (1080p compatible) and DVI adapter
I have tried all sorts of tinkering with the Nvidia display driver but to no avail. I have displayed 1080i with no problems and tried using the Nvidia custom timings to change that to non-interlaced but that doesn't work. Incidentally, if I try to add a custom resolution in the Nvidia app, when I click add to add the new resolution I get no errors but the resolution is not added.
I have since downloaded PowerStrip but am unsure how to use it. I have been able to output a flawless 1080p using the powerstrip app and one of the predefined custom resolutions (1920x1080p 24Hz (EIA/CEA-861B)) but this is at 24Hz. I believe I should be able to get 1080p at 50 and 60Hz too!
I guess the above at least this proves it will display 1080p but how do I use powerstrip to enable 50Hz or 60Hz output?
A few points:
When I say I can't get 1080p at 50/60Hz I mean that the resulting display is unwatchable and obviously very wrong. The picture is displayed but the colours are all wrong with bright pink lines flickering all over the screen.
I noticed when rebooting my PC the Samsung TV shows the DOS boot screens and Windows XP logo but all black parts of the screen are bright pink and constantly flickering.Is this normal for a HDTV? My monitor doesn't misbehave like this! This happens even if I have the TV set configured to a resolution that it displays correctly prior to the reboot. It doesn't correct itself until Windows has fully loaded, I'm guessing because the Nvidia drivers are loaded by that time.
So far I have only used my desktop for testing purposes, in other words, I haven't tried sending video to the TV from the PC, only standard Windows graphics.
I have a PS3 attached using a separate HDMI port on the TV and it displays 1080p Blu-ray disks with no problems.
I'm hoping this is a simple timing issue that may be corrected with PowerStrip but I don't have the knowledge to set it correctly. Specifically, I understand resolutions and even refresh rates but have no clue about front/bakporch settings or how they are determined.
The only information of this sort that I have about the TV set is the following resolution and refresh details taken from the TV manual:
Applicable to HDMI connections
Horizontal Frequency: 66.587 kHz
Vertical Frequency: 59.934 Hz
Pixel Clock: 138.500 MHz
Sync Polarity: +/-
The only time I got close to these figures was choosing the CVT-RB timing standard setting in the Nvidia driver. However the sync polarity could not be changed and was incorrect and when I tried the settings I got the same 'pink screen' as described above.
Please help as I have no idea what to try next!
Thanks in advance.