Trouble with ATI-Card - changes resolution on reboot (1 Viewer)

[Loki72]

Hi everybody,

running Mediaportal now for some time mostly everything works fine for me

But recently I got trouble concerning my screen resolution settings. I'm aware of the fact that this is rather an issue of mediaportal itself but of my Sapphire ATI Radeon 9000. But as there are many enthusiasts here I hope someone has a solution.

I'm using the ATI catalyst 1.2.2314.20337 on Windows XP Pro.
The graphics card has been hooked to my LCD-TV (Toshiba Regza) by VGA plug. TV has been set as primary (and only) display. This worked well for low resolutions.

As my TV has full hd resolution I recently tried to connect it to my HTPC with a DVI->HDMI cable. This made it possible to select full hd resolution in the grahics card control panel. The VGA cable has been removed. Everything worked fine - until I restarted the HTPC.

If the HTPC is been started with TV switched on - it works as it should.
If the HTPC is been started with TV switched OFF - resolution will be changed to 1024 x 768.

Does anybody has an idea? A solution? Is this a known problem? I already did a search and also tried google but nothing yet.

Thanks.

 

[Tullux]

Is this a known problem?

I think there's a 'force TV detection' setting somewhere in the ATI driver/tools that you need to check in order for the card to recognize it after the initialization.
Or manually declare your screen or it's capabilities in the display section, or else the card will switch to 'default SVGA Monitor'.

 

[Loki72]

Tullux, you are right, there is a 'force TV detection' setting. Unfortunately this doesn't solve the problem as the TV is connected via DVI-> HDM and therefore not working as a TV but as a monitor. Thanks anyway.

I think I have found a workaround in the meantime.

The ATI catalyst has the ability to create different profiles with stored settings e. g. resoution settings. It's also possible to make desktop shortcuts to these profiles. I placed such a shortcut to a proile with the correct setting into my windows startup folder. Each reboot that profile is selected and the result is the proper screen resolution.

 

[Cooler]

loki72 download the nieuw ati software reboot systeem go to catalyst software select advanced settings hdmi put your cart in 720p ore 1080 hd and select force tv detection. wen tv is on standby it should be detected bij your ati cart

 

[Tullux]

Tullux, you are right, there is a 'force TV detection' setting. Unfortunately this doesn't solve the problem as the TV is connected via DVI-> HDM and therefore not working as a TV but as a monitor. Thanks anyway.

There should also be the option to select your monitor in the Windows settings (right click on the desktop -> properties -> 4th or 5th tab "Settings -> advanced" ..oder Systemsteuerung ->"anzeige" oder "monitor").

I remember having similar issues with default resolution getting set way below my card&monitor capabilities, because I had the "Standard Plug&Play" Monitor set as default. If it didn't find a monitor at startup, it would switch to "Standard SVGA". (that was still connecting VGA-VGA, not really sure if DVI/HDMI still works this way).

If I started up with monitor connected, it would read the Plug&Play info and I could select the actual monitor I'm using (something "custom display blabla") and keep the selection trough reboot etc. even if the monitor was switched off, because it didn't use PnP, but the pre-configured values.

After that, it would simply always come up with the right resolution - but that was a Windows Settings issue, not a GFX Card driver one.