Hi Andi.
My main system is a dual-monitor setup with ATI X300, SNAP of course. I've a lot of other systems running and tested with Panorama. But I've never seen a system which switches monitor(s) off with the eCS/ArcaOS included Screen Saver.
OK, so what I'm seeing maybe not be all that un-common after all.
...On my main system with (ATI X300, SNAP) I've extended the old blackout utility to switch of the monitors after a period of inactivity. SNAP couldn't do that with the X300...If you've a X300 or X550 you can try my blackout version too (hobbes).
Hmm...what's the name, b/c current search for blackout across the entire archive results in NO HITS. I'm guessing 'black103_ab.zip' is the file though? d/l'ing it right now...
Well, for what it's worth, as I wrote earlier, testing this out with SNAP's gactrl.exe and option #7 here (DPMS tests) actually provides a working STAND BY and SUSPEND functionality. it's just that Doodle SSaver does not appear to utilize it correctly???
...Btw.
IMHO this has nothing to do with landscape/portrait mode. Your monitor is simply faulty. It reports WRONG data. Obviously there is no workaround for your monitor with wrong EDID in any of our display drivers.
Ahhh, and here, with all due respect I have to differ. So here is the thing, I've actually re-written the EDID coding on the 245T display, progressively simplifying it right down to literally just the bare definition of basic VESA modes and the panel's native 1920x1200 resolution. The DVI and VGA ports have their own EDID records, so I adjusted the VGA side of course. Still the monitor would insist on coming up with this dreaded screen flip display. I thought I would completely take the EDID out of the equation. This meant I actually picked up an EXTRON EDID 101D & 101V module, which are pre-programmed with vanilla (VESA basically) modes, as well as allowing you to record a good EDID off of a monitor that works so that I could fake the video card & video drivers out.
Results => NOPE, nuthin'....still broken.
Better yet, given that my new DELL is recognized correctly, both on DVI & VGA I actually used the EXTRON module to copy the DELL EDID and drive the SNAP driver with that data...nah, no-go, the Samsung 245T would still come up with the wrong resolution.
Therefore, I attribute this completely to an internal monitor logic fault (in terms of how it actually responds to the video signal). This btw is across multiple 245T panels, I have some 4 of them here and am using them with my Winx based machines very successfully, albeit all connected through DVI.