Thanks Dok for trying to help.
the resolution on TV is 1920x1080, the resolution on my laptop screen is 1366x768
Note that I go from one screen (e.g. TV) to the other screen (laptop) by moving the mouse cursor to the other side of the screen...
so it looks like my desktop is divided between TV screen and laptop screen...
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[vincent@localhost ~]$ grep -i driver /var/log/Xorg.0.log
[ 28.047] X.Org Video Driver: 18.0
[ 28.047] X.Org XInput driver : 21.0
[ 28.558] (II) Loading /usr/lib64/xorg/modules/drivers/v4l_drv.so
[ 28.565] ABI class: X.Org Video Driver, version 18.0
[ 28.689] (II) Loading /usr/lib64/xorg/modules/drivers/intel_drv.so
[ 28.763] Module class: X.Org Video Driver
[ 28.763] ABI class: X.Org Video Driver, version 18.0
[ 28.763] (II) v4l driver for Video4Linux
[ 28.763] (II) intel: Driver for Intel(R) Integrated Graphics Chipsets:
[ 28.763] (II) intel: Driver for Intel(R) HD Graphics: 2000-6000
[ 28.763] (II) intel: Driver for Intel(R) Iris(TM) Graphics: 5100, 6100
[ 28.763] (II) intel: Driver for Intel(R) Iris(TM) Pro Graphics: 5200, 6200, P6300
[ 28.764] (II) intel(0): Using Kernel Mode Setting driver: i915, version 1.6.0 20150327
[ 28.979] (II) intel(0): [DRI2] DRI driver: i965
[ 28.979] (II) intel(0): [DRI2] VDPAU driver: va_gl
[ 29.908] Module class: X.Org XInput Driver
[ 29.908] ABI class: X.Org XInput driver, version 21.0
[ 29.908] (II) Using input driver 'evdev' for 'Power Button'
[ 29.955] (II) Using input driver 'evdev' for 'Video Bus'
[ 29.955] (II) Using input driver 'evdev' for 'Video Bus'
[ 29.956] (II) Using input driver 'evdev' for 'Power Button'
[ 29.956] (II) No input driver specified, ignoring this device.
[ 29.956] (II) Using input driver 'evdev' for 'Sleep Button'
[ 29.957] (II) No input driver specified, ignoring this device.
[ 29.957] (II) No input driver specified, ignoring this device.
[ 29.957] (II) No input driver specified, ignoring this device.
[ 29.957] (II) No input driver specified, ignoring this device.
[ 29.957] (II) No input driver specified, ignoring this device.
[ 29.957] (II) No input driver specified, ignoring this device.
[ 29.957] (II) Using input driver 'evdev' for 'Integrated Camera'
[ 29.958] (II) Using input driver 'evdev' for 'AT Translated Set 2 keyboard'
[ 29.997] Module class: X.Org XInput Driver
[ 29.997] ABI class: X.Org XInput driver, version 21.0
[ 29.997] (II) Using input driver 'synaptics' for 'SynPS/2 Synaptics TouchPad'
[ 30.036] (II) No input driver specified, ignoring this device.
[ 30.036] (II) Using input driver 'evdev' for 'ThinkPad Extra Buttons'
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[vincent@localhost ~]$ lspcidrake -v | grep VGA
Card:Intel 810 and later: Intel Corporation|4th Gen Core Processor Integrated Graphics Controller [DISPLAY_VGA] (vendor:8086 device:0416 subv:17aa subd:503f) (rev: 06)
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[vincent@localhost ~]$ xrandr -q
Screen 0: minimum 8 x 8, current 3286 x 1080, maximum 32767 x 32767
eDP1 connected 1366x768+1920+240 (normal left inverted right x axis y axis) 344mm x 194mm
1366x768 60.00*+
1024x768 60.00
800x600 60.32 56.25
768x576 99.99 79.37
640x480 59.94
680x384 60.00
DP1 disconnected (normal left inverted right x axis y axis)
HDMI1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 698mm x 392mm
1920x1080 50.00 + 60.00* 59.94 24.00 23.98
1920x1080i 60.00 50.00 59.94
1280x720 60.00 50.00 59.94
720x576 50.00
720x576i 50.00
720x480 60.00 59.94
720x480i 60.00 59.94
640x480 60.00 59.94
VGA1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)