[CentOS] CentOS 7 and 4K display

[Phelps, Matthew]

On Fri, May 6, 2016 at 8:06 AM, Jerry Geis <geisj at pagestation.com> wrote:

> | What is your graphics card model?
> NVIDIA Corporation GK208 [GeForce GT 720] This does 4K
>
> | Which driver are you using?
> I am using the NOUVEAU at this time
>


I would suggest trying the NVIDIA proprietary driver from the ELRepo

rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm

yum install kmod-nvidia

reboot



> | What connector are you using (DVI, Display Port, HDMI)?
> HDMI
>
> | Does it work at 4k with Gnome, or KDE?
> Yes has worked under Gnome
>
> The /var/log/X log file shows it present from the monitor.
>  grep 3840 /var/log/Xorg.0.log
> [     6.540] (II) NOUVEAU(0): h_active: 3840  h_sync: 3888  h_sync_end 3920
> h_blank_end 4000 h_border: 0
> [     6.540] (II) NOUVEAU(0): h_active: 3840  h_sync: 4016  h_sync_end 4104
> h_blank_end 4400 h_border: 0
> [     6.996] (II) NOUVEAU(0): Modeline "3840x2160"x0.0  533.25  3840 3888
> 3920 4000  2160 2163 2168 2222 +hsync -vsync (133.3 kHz eP)
> [     6.996] (II) NOUVEAU(0): Modeline "3840x2160"x0.0  297.00  3840 4016
> 4104 4400  2160 2168 2178 2250 +hsync -vsync (67.5 kHz e)
> [     7.104] (II) NOUVEAU(0): Modeline "3840x2160"x0.0  533.25  3840 3888
> 3920 4000  2160 2163 2168 2222 +hsync -vsync (133.3 kHz eP)
> [     7.104] (II) NOUVEAU(0): Modeline "3840x2160"x0.0  297.00  3840 4016
> 4104 4400  2160 2168 2178 2250 +hsync -vsync (67.5 kHz e)
> [     8.290] (II) NOUVEAU(0): Modeline "3840x2160"x0.0  533.25  3840 3888
> 3920 4000  2160 2163 2168 2222 +hsync -vsync (133.3 kHz eP)
> [     8.290] (II) NOUVEAU(0): Modeline "3840x2160"x0.0  297.00  3840 4016
> 4104 4400  2160 2168 2178 2250 +hsync -vsync (67.5 kHz e)
> [    11.932] (II) NOUVEAU(0): Modeline "3840x2160"x0.0  533.25  3840 3888
> 3920 4000  2160 2163 2168 2222 +hsync -vsync (133.3 kHz eP)
> [    11.932] (II) NOUVEAU(0): Modeline "3840x2160"x0.0  297.00  3840 4016
> 4104 4400  2160 2168 2178 2250 +hsync -vsync (67.5 kHz e)
> [    13.939] (II) NOUVEAU(0): Modeline "3840x2160"x0.0  533.25  3840 3888
> 3920 4000  2160 2163 2168 2222 +hsync -vsync (133.3 kHz eP)
> [    13.939] (II) NOUVEAU(0): Modeline "3840x2160"x0.0  297.00  3840 4016
> 4104 4400  2160 2168 2178 2250 +hsync -vsync (67.5 kHz e)
> [    14.076] (II) NOUVEAU(0): Modeline "3840x2160"x0.0  533.25  3840 3888
> 3920 4000  2160 2163 2168 2222 +hsync -vsync (133.3 kHz eP)
> [    14.076] (II) NOUVEAU(0): Modeline "3840x2160"x0.0  297.00  3840 4016
> 4104 4400  2160 2168 2178 2250 +hsync -vsync (67.5 kHz e)
> [    14.212] (II) NOUVEAU(0): Modeline "3840x2160"x0.0  533.25  3840 3888
> 3920 4000  2160 2163 2168 2222 +hsync -vsync (133.3 kHz eP)
> [    14.212] (II) NOUVEAU(0): Modeline "3840x2160"x0.0  297.00  3840 4016
> 4104 4400  2160 2168 2178 2250 +hsync -vsync (67.5 kHz e)
> [    14.349] (II) NOUVEAU(0): Modeline "3840x2160"x0.0  533.25  3840 3888
> 3920 4000  2160 2163 2168 2222 +hsync -vsync (133.3 kHz eP)
> [    14.349] (II) NOUVEAU(0): Modeline "3840x2160"x0.0  297.00  3840 4016
> 4104 4400  2160 2168 2178 2250 +hsync -vsync (67.5 kHz e)
> [    14.624] (II) NOUVEAU(0): Modeline "3840x2160"x0.0  533.25  3840 3888
> 3920 4000  2160 2163 2168 2222 +hsync -vsync (133.3 kHz eP)
> [    14.624] (II) NOUVEAU(0): Modeline "3840x2160"x0.0  297.00  3840 4016
> 4104 4400  2160 2168 2178 2250 +hsync -vsync (67.5 kHz e)
>
> I find no errors throwing out the mode.
>
> Thanks,
>
> Jerry
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-- 
Matt Phelps
System Administrator, Computation Facility
Harvard - Smithsonian Center for Astrophysics
mphelps at cfa.harvard.edu, http://www.cfa.harvard.edu