Topic Title: radeon 8770M vs seiki 4k resolution screen over hdmi in ubuntu 12.04
Topic Summary: Need help getting this screen to work
Created On: 11/14/2013 10:04 PM
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 11/14/2013 10:04 PM
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daywiss
Peon

Posts: 3
Joined: 11/14/2013

I've spent a lot of time troubleshooting this problem and unfortunately have not solved it.

I'm basically trying to drive a seiki 3840x2160 screen at 30hz over hdmi on my samsung laptop which has an 8770m and an intel hd4000 video adaptor.

The only amd drivers i can get to even install is the beta 13.11 driver(which would not install with linux kernel 3.9, had to revert to 3.5 btw), but this causes all kinds of problems with the screen even before even trying to run at full resolution. It basically makes the computer unusable in mirror mode at 1080p.  I currently have the best luck running the intel driver, so all amd drivers have been removed.  But then i can only drive the screen at about 14hz.

I've come to a point where i can either try newer intel video drivers, which would require me to upgrade to at least ubuntu 13.04, and im pretty sure would make it impossible to install beta radeon drivers because of the newer kernel. i dont want to do this.

Is there a possibility i can get this to work properly with amd? Please advise...

 

 

 11/15/2013 01:10 PM
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Eydee
Ninja Zombie Killer

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Joined: 12/27/2008

 

Originally posted by: daywiss would make it impossible to install beta radeon drivers because of the newer kernel. i dont want to do this.

13.11 supports even the latest 3.12 kernel. The problem you had with 3.9 was a version specific bug, and has been resolved in beta v6 according to the release notes.



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CPU: AMD Phenom II X4 810 @ 3120MHz | RAM: Kingmax 2x2GB DDR2 800 @ 833MHz| MoBo: MSI K9A2 CF v1.0 (BIOS: 1.D)| GPU: Asus HD 6850 1024MB (DirectCu) @ 835/1135MHz | Display: L24FHD | PSU: PC Power & Cooling Silencer 750 Quad | OS: MS Windows 3.11 Pro x64

 11/16/2013 09:11 AM
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daywiss
Peon

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Joined: 11/14/2013

Yea, I realize it says that in the change list, but it didnt work for me until i reverted to an older kernel with 12.04. Its possible there was some other reason it didnt work.

That said, i ended up installing ubuntu 13.10, I should be able to run newer intel drivers and/or amd beta drivers. I'll check monday if this solves the problem.

Btw the price of the 39" 4k sieki screen has been lowered to 520$ on amazon.

 11/20/2013 07:47 AM
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daywiss
Peon

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Joined: 11/14/2013

ok, so i upgraded to ubuntu 13.10. tried the beta amd drivers but basically still had the same result. screen corruption and all kinds of screen artifacts when the seiki is plugged in. right now im just running stock drivers that come with ubuntu.  sadly this still only drives the screen at 14hz.

 

 

 

 11/20/2013 09:53 AM
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Eydee
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Joined: 12/27/2008

I suggest you use the linux issue reporting form and look for the bugtracker of the free driver as well. Report your problem at both places and let's see which developer team is faster.



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CPU: AMD Phenom II X4 810 @ 3120MHz | RAM: Kingmax 2x2GB DDR2 800 @ 833MHz| MoBo: MSI K9A2 CF v1.0 (BIOS: 1.D)| GPU: Asus HD 6850 1024MB (DirectCu) @ 835/1135MHz | Display: L24FHD | PSU: PC Power & Cooling Silencer 750 Quad | OS: MS Windows 3.11 Pro x64

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