On Fri, May 6, 2016 at 8:06 AM, Jerry Geis <geisj@xxxxxxxxxxxxxxx> 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@xxxxxxxxxxxxxxx, http://www.cfa.harvard.edu
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