| 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
| 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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