ATI cards and Samsung LCD

Hello Everybody,
i just installed the latest build of Windows 7 (build 7100). and there are a few problems with my graphics options. There are 2 systems that i tried this on and both are having the same problem. The first setup has a Ati Radeon X1650 by MSI, and the drivers install, signed by WDDM. Now the monitor/tv that i am using is a 42inch LCD TV, and has the 1920x1080 resolution, that is its native resolution. Windows 7, supports the resolution and has it as the recommended resolution, however, when i select it, my monitor says "mode not supported" this is the same problem i have with the HD2600XT card from ATI.

Both of these cards work in Vista Ultimate, Vista Home Premium, Vista Business, and XP Pro SP3 and XP Home SP3, and even tried Server 2008 and server 2003. all of those OS's work with the native resolution on the monitor except the Windows 7 builds. anyone have an idea why this would be??

also, for the HD2600XT i did install the latest ati driver 9-4, and nothing is fixed. right now i am running it at 1280x768, but its skewed.

if anyone has any info on this it would be great, as i have tried everything.
i have also tried installing the 9-3 drivers on both cards, manually and using the installs. the manual way was to unzip the driver package and in device manager install the drivers myself.

The one system i have plugged into it now is a Shuttle Barebone SG31G2B, 4 GB of ddr2/800 ram, quad core q6600 2.4ghz, and the hd 2600xt..
Thanks,

I have same problem with ATI card and Windows 7 RC. My TV says mode not supported before Windows 7 RC installation completes. When I switch to 19" computer monitor resolution of the screen is correct 1920x1080 however refresh rate shows 61!!!! I think this is what my tv doesn't like and refuses to display the picture. I used my computer in current configuration with Win XP Pro, Vista and Windows 7 Beta with no problems. There must be a bug in RC that's causing it.

Hey rbebenek, I was/am having the same problem as you, I did find a temporary fix though if you want to try it out. Firstly though are you able to run 1600x1200 on your tv or does that also say "mode not supported"?

Wide screen TV sets don't support 1600 x 1200. The next supported resolution would be 1360 x 768. Can I try your workaround? My TV displays picture on any supported resolution except for 1920x1080.

Install cat 9.1 for the x1650.

I did install 9.1 but still didn't work. I tried 9-3, 9-4 and leaked 9-5 with no success. I managed to make it work after installing Catalyst 8-12 in XP SP2 compatibility mode however I had to change screen resolution in Catalyst itself (not from windows display properties screen!). Now onto another task after installing 7 RC. My network adapter has exclamation mark in device manager.

I have the same problem. I have a Samsung 40' LCD 1080p TV I use as a monitor. In Windows XP Professional 64 Bit and Windows Vista Ultimate 64 Bit I can run at 1920 x 1080 via the VGA output. I can not do so in Windows 7 Ultimate 64 Bit. The best I can get is 1600 x 1200. However, if I use the HDMI connection, I can get 1920 x 1080 but the picture is same what grainy. Turning off Cleartype does provide some marginal improvement. I don't want to use the HDMI because power management will not put the monitor / TV to sleep when doing so.

On a completely unrelated issue, anyone having problems with slow network connectivity under Windows 7 might want to turn off QoS. It really helped for me.

I am having the same problem. I was running Windows XP with everyone working fine, resolution outputting at 1920x1080 @ 60 Hz. I upgraded to Windows 7 yesterday and have not been able to get it to output at 1920x1080 @ 60 Hz. I have an Ati Radeon 4830.

Again, everything worked fine in Windows XP but Windows 7 won't let me output at 1080... Any help or suggestions would be great!

• Stuff I tried so far is forcing the resolution and refresh rate
• EDID on / off
• windows display properties force 60 Hz, resolution etc...

Everything is to no avail.

REP: I am having the same problem.

The only way to get it to go to 1920x1080 is to use a HDMI. The problem is that power management does not function correctly when doing so. A buddy of mine recently talked to Samsung who said that you are not supposed to have this problem if you go from HDMI to HDMI rather than from DVI to HDMI. I can not verify this last statement.

My memory is not the best but, I could swear when I hooked up my laptop's HDMI to my 58" Samsung plasma TV HDMI I did not have that problem.

I can tell you that if using DVI to HDMI, the monitor will go blank when power management kicks in and the TV seems to loose its signal completely. A PC reboot is required to get it back.

Omitted said:

I am having the same problem. I was running Windows XP with everyone working fine, resolution outputting at 1920x1080 @ 60 Hz. I upgraded to Windows 7 yesterday and have not been able to get it to output at 1920x1080 @ 60 Hz. I have an Ati Radeon 4830.

Again, everything worked fine in Windows XP but Windows 7 won't let me output at 1080... Any help or suggestions would be great!

• Stuff I tried so far is forcing the resolution and refresh rate
• EDID on / off
• windows display properties force 60 Hz, resolution etc...

Everything is to no avail.

Click to expand...

i guess i'm really lucky with my hd4890 and samsung 2494hs - 1920x1080 works fine with dvi, with no messing around - i haven't needed to try any of the other outputs...

I have tried using HDMI as well but the picture is very grainy... With VGA on Windows XP the picture was perfect but when I try HDMI on XP and 7 the picture is horrible... Is there a fix for that or no?

It's like being stuck b/w a rock and a hard place... Windows XP perfect picture or Windows 7 and not so much.

Thanks for help by the way!

gampt said:

Wide screen TV sets don't support 1600 x 1200. The next supported resolution would be 1360 x 768. Can I try your workaround? My TV displays picture on any supported resolution except for 1920x1080.

Click to expand...

It depends on the manufacturer and whether it is a 7080i/720p TV or true 1080p. I had two Visio 1080i/720p LCD's that were 1366x768. A friend of my just bought a Sharp LED that won't go past 1600x1200 in PC mode but will go to 1920x1080 when in TV mode.

I am using a Samsung 40 inch that in PC mode will go 1920x1080 under Windows XP and Windows Vista but not Windows 7. In Windows 7 it will only go to 1600x1200. If you use the HDMI, it will go to 1920x1080 but the fonts look grainy.

To make matters worse, some actually can handle modes that the manufacturer doesn't even report. I found that early on when I bought my first 1080i/720p TV's. The key words are 'supported mode'.

I suspect that it's neither a graphics driver problem, nor a hardware problem with the TV. From what I can tell, the problem most of us are having seems to be in the way the OS is handling the EDID being reported by the TV. I read somewhere that Intel actually had a similar problem and came up with a fix for it. My question is this, what did Microsoft change in Windows 7 that has created the problem? I ask this because you can now run Vista drivers under Windows 7 and they worked fine under Vista, therefore the problem has to be in the OS.

Omitted said:

I have tried using HDMI as well but the picture is very grainy... With VGA on Windows XP the picture was perfect but when I try HDMI on XP and 7 the picture is horrible... Is there a fix for that or no?

It's like being stuck b/w a rock and a hard place... Windows XP perfect picture or Windows 7 and not so much.

Thanks for help by the way!

Click to expand...

Mostly fonts right? I researched it on the web for hours and then played with it for hours more. One thing suggested was to turn off cleartype. I can't say it made that big a difference for me. Changing the DPI and fonts seemed to do more. That helped but it still wasn't perfect.

Have exactly the same problem. Was outputting 1920x1080@60Hz from my laptop (ati graphics) via VGA under windows vista. Worked like a charm. Upgraded to Win7, didnt get it to work at all.

Bought a new system and I have the same problem. When I go with HDMI i get a picture, but its overscanned (think that is what its called, black border around the desktop, everything looks like ****). Have tried several different drivers, but nothing is working.

If it is as some people think, that its windows that cant read the tv's instructions properely, when can we hope for a fix?

Gonna try catalyst 9.10 beta now. have a feeling its not gonna work, but ill report back.

//flax

Any updates on this? I haven't figured out any way to get 1920x1080 yet
All play and no FullHd makes flax a dull boy

flax said:

Any updates on this? I haven't figured out any way to get 1920x1080 yet
All play and no FullHd makes flax a dull boy

Click to expand...

As far as I can tell right now, the only option is to use the HDMI. However, you may need to play with the DPI settings to get you fonts looking half-way decent and will probably have to turn off monitor sleep mode to keep the monitor from loosing signal complete.

Hi all,

I have a friend who has a PC with following specs:

Windows 7 RC Build 7100

Sapphire ATI Radeon HD 4770 with Catalyst ver 9.8 (or 9.9 he doesn't remember)

Samsung 2233SW with native res. 1920x1080.

He is able to get 1080 res. with just a DVI cable.

Just thought to share it here.

Did that person go DVI to DVI or DVI to HDMI? Also, I can get 1920x1080 an using either a DVI to HDMI or an HDMI cable. There are two problems: the picture looks grainy and power management won't bring the monitor/TV out of sleep mode.

Dragor1 said:

Hi all,

I have a friend who has a PC with following specs:

Windows 7 RC Build 7100

Sapphire ATI Radeon HD 4770 with Catalyst ver 9.8 (or 9.9 he doesn't remember)

Samsung 2233SW with native res. 1920x1080.

He is able to get 1080 res. with just a DVI cable.

Just thought to share it here.

Click to expand...

i've got an hd4890 and a samsung 2494hs.

i've had 1920x1080 over dvi with no problems at all, and i've tried three or four different windows 7 builds, and three or four catalysts.

no problems with graininess nor waking up - i must be lucky.

DeathNACan said:

Did that person go DVI to DVI or DVI to HDMI? Also, I can get 1920x1080 an using either a DVI to HDMI or an HDMI cable. There are two problems: the picture looks grainy and power management won't bring the monitor/TV out of sleep mode.

Dragor1 said:

Hi all,

I have a friend who has a PC with following specs:

Windows 7 RC Build 7100

Sapphire ATI Radeon HD 4770 with Catalyst ver 9.8 (or 9.9 he doesn't remember)

Samsung 2233SW with native res. 1920x1080.

He is able to get 1080 res. with just a DVI cable.

Just thought to share it here.

Click to expand...

Click to expand...

DVI to DVI obviously as HD 4770 does not have a VGA port.

No noise problems whatsoever and power management works great as well.

I think from what has been posted, try your friend's monitor or your friend's card.

If one works, the others the culprit. Then try the same at your friend's place and eliminate the faulty part.

Hope this helps.