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HDTV as monitor: resolution problems
Quoth
the RavenMiami, FL FOR REALRegistered User regular
the RavenMiami, FL FOR REALRegistered User regular
Hoping this is the right place for this question, if not please mock me until I run away in tears. I am not the most tech savvy person so I will probably say things wrong.
I bought a new computer with a Radeon HD 4850 card that I delightedly hooked up to my 46" HDTV via a DVI cable. It ran at 1920x1080 or something like that and it looked fabulous. I went through all the setup stuff and eventually it started downloading Windows updates. Vista, to be precise.
Unfortunately, after downloading all the updates, my computer restarted and suddenly the 1920x1080 resolution option completely disappeared. It ran at 1600x1200, which was stretched all funny.
I downloaded the newest ATI drivers and installed them. No dice. The Help menu is telling me to do things like click buttons that don't exist and enable settings that aren't there. I can't force the appropriate resolution, with or without having the EDID detector thing enabled.
Help? Please?
I bought a new computer with a Radeon HD 4850 card that I delightedly hooked up to my 46" HDTV via a DVI cable. It ran at 1920x1080 or something like that and it looked fabulous. I went through all the setup stuff and eventually it started downloading Windows updates. Vista, to be precise.
Unfortunately, after downloading all the updates, my computer restarted and suddenly the 1920x1080 resolution option completely disappeared. It ran at 1600x1200, which was stretched all funny.
I downloaded the newest ATI drivers and installed them. No dice. The Help menu is telling me to do things like click buttons that don't exist and enable settings that aren't there. I can't force the appropriate resolution, with or without having the EDID detector thing enabled.
Help? Please?
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I'm guessing this is a driver issue, since I have close to the same setup working well (the only diff being TV size, and that I'm using the DVI-to-HDMI dongle that came with the card to hook up to the TV, as my DVI to HDMI cable dropped out the sound.)
Do you think I should try switching to an HDMI cable?
I booted it to the TV originally. Only hooked it up to a monitor later when I changed the settings to something that wasn't supported and couldn't change it back. Currently have the TV cloned to the monitor settings.
I'd look for drivers for your TV. Mine shows up in device manager as a plug and play device, but in catalyst it's detected properly.
I'd say to try booting up with a linux livecd to see if you get 1920x1080 there, but from experience I can tell you that you'll probably not have display options above 1600x1200 in most of them with a 4850 just from a live-boot.
Where would I find drivers for the TV?
I'd do that, then install the ATI video driver by itself, followed by the catalyst drivers. If that doesn't work it might be worth looking at what installed in your vista updates --if there was something related to displays, you may wish to roll your system back with system restore and then do an update skipping that one.
On the plus side it's a lot easier in Vista, just hop into windows update and click 'view update history' (it's a link to the right of the 'Updates were installed:' text) and right click -> view details on any of the ones you want to see. You'll be able to skip most of them without even viewing the details as the majority will just be security and definition updates. Looking at my own, the only one I see for any hardware is actually a mouse driver update
If rolling back does return the resolution, it may be as simple as installing your display drivers and then rebooting before letting windows do it's updates. Since the update process broke things I imagine it's just a case of windows updating your display drivers after you'd already installed them, managing to clobber something in the process.
No, see, I only had it connected to the TV when the problem occurred. I only connected it to the monitor later when I changed the setting to something totally not supported and couldn't change it back due to not being able to see anything.