![[H]ard|Forum](/styles/hardforum/xenforo/logo_dark.png){kind=logo}
Problems with 1920x1080
- Thread starter AngryJim
- Start date
My 9200 can drive a Dell 2407 at 1920x1200@63Hz, so I suspect that a custom timing may fix things.
FWIW, I can drive the Dell at 1920x1080@60Hz using this timing via powerstrip:
1920x1080=1920,40,32,56,1080,61,3,88,151388,1
(i.e. HFP=40 HSW=32 HBP=56 VFP=61 VSW=3 VBP=88, Hz=60)
But before you try that, have a look at the displays' EDID (use http://www.entechtaiwan.net/util/moninfo.shtm) and see what it says re custom timings.
FWIW, I can drive the Dell at 1920x1080@60Hz using this timing via powerstrip:
1920x1080=1920,40,32,56,1080,61,3,88,151388,1
(i.e. HFP=40 HSW=32 HBP=56 VFP=61 VSW=3 VBP=88, Hz=60)
But before you try that, have a look at the displays' EDID (use http://www.entechtaiwan.net/util/moninfo.shtm) and see what it says re custom timings.
Alright I played around with custom resolutions in powerstrip for awhile and it seems I've got a 1920x1080 resolution that properly fits the screen, but there's another problem. When I first started messing around with resolutions on this new monitor (I always used to be at 1280x1024) these weird blue pixels started showing up in random places. Sometimes dragging a window across them caused them to disappear, but it's been gradually getting worse. Now that I'm using Powerstrip at 1920x1080, it's gotten out of hand (pictures below). Does this mean my current card is totally corrupted? I was thinking of replacing it with a Radeon 1650 AGP so that I can still use it once I get my new gaming rig, would that possibly fix this or is there something else in the computer that's causing problems? Both Xbox360 and my friends computer (w/ a 7950gtx) run fine on the monitor, it's just my computer that's having problems.
(Having trouble with the pictures, will post later)
(Having trouble with the pictures, will post later)
What was the timing you got to work?
The EDID shows that Timing recommendation #1 ( = prefered native resolution timing) 1920x1080p60 is actually the formal EIA/CEA-861-B #16 timing which is the same as the SMPTE 274M-1998 #1 timing. The problem with these timings is that they have horizontal timings based on 4-pixel blocks (e.g. HSW=44). According to the makers of PowerStrip your 9800 can't generate that sort of timing, but your friends' 7950 can (http://www.entechtaiwan.net/forums/viewtopic.php?t=20). PowerStrip lists EIA/CEA-861-B timings (which you could also try if you haven't yet), but I have discovered that the PowerStrip timings are not true EIA/CEA-861-B timings:-
EIA/CEA-861-B #16 <=> SMPTE 274M-1998 #1
H-scan 67.500 kHz, Hres 1920, HFP 088, HSW 044, HBP 148, Htot 2200. V-refresh 60.000 Hz, Vres 1080, VFP 4, HSW 5, VBP 036, Vtot: 1125.
"Pseudo" EIA/CEA-861-B 1920x1080p60 (PowerStrip)
H-scan 67____ kHz, Hres 1920, HFP 088, HSW 048, HBP 144, Htot 2200. V-refresh 60____ Hz, Vres 1080, VFP 4, HSW 5, VBP 036, Vtot: 1125.
My experience with the Dell is that it is very sensitive to HFP/HSW/HBP changes. Other panels care a lot less ...
Re the blue pixels:
Others are having similar problems (e.g. http://www.hardforum.com/showthread.php?t=1162881); all sorts of cards are affected ...
The EDID shows that Timing recommendation #1 ( = prefered native resolution timing) 1920x1080p60 is actually the formal EIA/CEA-861-B #16 timing which is the same as the SMPTE 274M-1998 #1 timing. The problem with these timings is that they have horizontal timings based on 4-pixel blocks (e.g. HSW=44). According to the makers of PowerStrip your 9800 can't generate that sort of timing, but your friends' 7950 can (http://www.entechtaiwan.net/forums/viewtopic.php?t=20). PowerStrip lists EIA/CEA-861-B timings (which you could also try if you haven't yet), but I have discovered that the PowerStrip timings are not true EIA/CEA-861-B timings:-
EIA/CEA-861-B #16 <=> SMPTE 274M-1998 #1
H-scan 67.500 kHz, Hres 1920, HFP 088, HSW 044, HBP 148, Htot 2200. V-refresh 60.000 Hz, Vres 1080, VFP 4, HSW 5, VBP 036, Vtot: 1125.
"Pseudo" EIA/CEA-861-B 1920x1080p60 (PowerStrip)
H-scan 67____ kHz, Hres 1920, HFP 088, HSW 048, HBP 144, Htot 2200. V-refresh 60____ Hz, Vres 1080, VFP 4, HSW 5, VBP 036, Vtot: 1125.
My experience with the Dell is that it is very sensitive to HFP/HSW/HBP changes. Other panels care a lot less ...
Re the blue pixels:
Others are having similar problems (e.g. http://www.hardforum.com/showthread.php?t=1162881); all sorts of cards are affected ...
Ok, here's what the monitor is currently doing. I removed powerstrip and went back to 1280x1024, which worked just fine before. Now the image is really, really corrupted. Its to the point that I'm on my roommates pc because mine is so unusable. I have tried both DVI and VGA with three different monitors (42" westinghouse, 19" LCD, 19" CRT) all with the same result. I am convinced my video card is destroyed. I am currently running with my 19" CRT because if any damage is being inflicted on my display, I'd rather destroy that one than any other. These pictures are from the CRT, but all three monitors look the same.
