The problem crops up semi-regularly and when it does, it is always right after
some video system update.  Usually, I just have to go into system config and
re-tell the driver to separate the monitors, rotate one and adjust their
relative positions.  It hasn't worked this time (mostly).  I've done the fix
and rebooted over a dozen times, but the following problem persists for all
reboots except one:

I have two monitors, one in landscape and the other portrait.  The portrait
layout is in a hybrid state.  The windows and mouse controls are correctly
oriented and limited.  The wallpaper is correctly oriented, but is laid out in
landscape mode, so the bottom 1/3 of the screen is black.  That black screen
does not respond to right mouse clicks, but the top 2/3 does.  I would guess
that there would be a right mouse click response to the right of the screen
edge, but the cursor handling driver code seems to know where the edge is and
my cursor won't go there.

> $ (inxi -F;lsmod |grep -E 'nvidia|nouveau')|sed 's/^/> /'
> Resuming in non X mode: glxinfo not found. For package install advice run: inxi --recommends                                                   
> System:    Host: bach Kernel: 4.1.27-27-default x86_64 (64 bit)                                                                                
>            Desktop KDE 5 Distro: /etc/SuSE-release corrupted, use -% to override                                                               
> Machine:   System: Gigabyte product: N/A                                                                                                       
>            Mobo: AMD model: 990FXA-UD3 version: x.x Bios: American Megatrends version: FA date: 10/23/2012                                     
> CPU:       Octa core AMD FX-8320 Eight-Core (-MCP-) cache: 16384 KB flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm)                 
>            Clock Speeds: 1: 1700.00 MHz 2: 1400.00 MHz 3: 2900.00 MHz 4: 3500.00 MHz 5: 2900.00 MHz 6: 3500.00 MHz 7: 1400.00 MHz 8: 3500.00 MHz                                                                                                                                                
> Graphics:  Card: NVIDIA GK107 [GeForce GT 740] X.org: 1.17.2 drivers: nouveau (unloaded: fbdev,nv,vesa) Resolution: 145x95                     
> Audio:     Card-1: NVIDIA GK107 HDMI Audio Controller driver: snd_hda_intel Sound: ALSA ver: k4.1.27-27-default                                
>            Card-2: Advanced Micro Devices [AMD/ATI] SBx00 Azalia (Intel HDA) driver: snd_hda_intel                                             
> Network:   Card: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller driver: r8169                                               
>            IF: eth0 state: up speed: 1000 Mbps duplex: full mac: 94:de:80:0d:9c:44                                                             
> Drives:    HDD Total Size: 8241.6GB (9.3% used) 1: /dev/sda Patriot_Pyro_SSD 240.1GB                                                           
>            2: /dev/sdb HGST_HMS5C4040AL 4000.8GB 3: /dev/sdc HGST_HMS5C4040AL 4000.8GB 
> Partition: ID: / size: 61G used: 38G (64%) fs: btrfs ID: /tmp size: 61G used: 38G (64%) fs: btrfs 
>            ID: swap-1 size: 68.72GB used: 0.00GB (0%) fs: swap 
> Sensors:   System Temperatures: cpu: 46.6C mobo: N/A gpu: 33.0 
>            Fan Speeds (in rpm): cpu: N/A 
> Info:      Processes: 311 Uptime: 1:54 Memory: 2967.8/32144.7MB Runlevel: 5 Client: Shell inxi: 1.7.24 
> nouveau              1515520  7 
> video                  32768  1 nouveau
> i2c_algo_bit           16384  1 nouveau
> mxm_wmi                16384  1 nouveau
> drm_kms_helper        139264  1 nouveau
> ttm                   106496  1 nouveau
> drm                   385024  10 ttm,drm_kms_helper,nouveau
> wmi                    20480  2 mxm_wmi,nouveau
> button                 16384  1 nouveau