Windows 10 unable to run 4k resolution for TV

spikey57 · 2 Sep 2015 at 16:44

Hey,

Just wondered if anyone else has had this issue.

Have a Sony 805 49" 4k tv connected to my pc.

Worked fine at 4k on windows 7, and 8.

Upgraded to windows 10, and noticed that the TV was at 1080P.

Didn't really think much of it, and upped the resolution to 4k.

Get a black screen on my TV, and a message saying it is an unsupported resolution.

Worked fine in the preview builds, and in windows 7 and 8.

When it did this, it was then unable to roll back to 1080p, and I had to do another clean install to get it to pick up the tv again.

Anyone had this issue?

Orcvader · 2 Sep 2015 at 19:36

Did you install the latest GPU drivers?

spikey57 · 2 Sep 2015 at 19:42

Reinstalled the latest drivers. All that you get is an 'unsupported signal' message.

Just tried the Beta drivers, and I can get the resolution up to 3840x2160.

But if I take it above that I get the same message.

nightmare99 · 2 Sep 2015 at 20:00

Is 3840x2160 not the correct resolution for 4K ?
What res is the TV supposed to do?

spikey57 · 2 Sep 2015 at 20:11

4096x2160.

hyperseven · 2 Sep 2015 at 20:31

spikey57 said:
4096x2160.

Whats the exact model, as mentioned that res you quoted does not seem right :confused:

spikey57 · 2 Sep 2015 at 20:39

Sony 49X8505B...I have just done a check, and 3840x2160 is correct. Consider the matter closed.

Don't know why it has 4096x2160 as a higher option. Pretty sure I managed that under windows 7.

Seems to be working fine now.

russell664 · 4 Sep 2015 at 11:47

Glad you got it working fella.

spikey57 · 6 Sep 2015 at 11:46

Thanks for the help all