mdear

[mdear]

Yep, that did the trick.  It works now, many thanks, graywolf !

[mdear]

It appears the “service gdm stop” command is not available on Red Hat Enterprise Linux 6, please advise, thanks.

[mdear]

OK, I found the issue.  In my Esxi5.1 hypervisor I was not assigning the RHEL6 VM enough video memory, I had assigned it 8MB, but for my monitor size it required 10MB.  Reporting this so other users having a similar problem won’t have to go through a month of pain like I just did.

[mdear]

I found an online article, but was still not able to get my NoMachine client window to maximize across my portrait monitor (1080×1920).

Advice would be appreciated.

http://unix.stackexchange.com/questions/227876/how-to-set-custom-resolution-using-xrandr-when-the-resolution-is-not-available-i

> gtf 1080 1920 60

# 1080×1920 @ 60.00 Hz (GTF) hsync: 119.22 kHz; pclk: 178.35 MHz
Modeline “1080x1920_60.00”  178.35  1080 1168 1288 1496  1920 1921 1924 1987  -HSync +Vsync

> xrandr –newmode “1080x1920_60.00”  178.35  1080 1168 1288 1496  1920 1921 1924 1987  -HSync +Vsync
xrandr: Failed to get size of gamma for output default

xrandr –addmode default “1080x1920_60.00”
xrandr: Failed to get size of gamma for output default

echo $DISPLAY
:0

xrandr -q
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 320 x 200, current 1400 x 1050, maximum 1672 x 1920
default connected 1400×1050+0+0 0mm x 0mm
1280×768       60.0      0.0
1600×1200      85.0     75.0     70.0     65.0     60.0      0.0
1400×1050      75.0     60.0*     0.0
1280×1024      85.0     75.0     60.0      0.0
1280×960       85.0     60.0      0.0
1152×864       75.0      0.0
1024×768       85.0     75.0     70.0     60.0      0.0
832×624        75.0
800×600        85.0     75.0     72.0     60.0     56.0      0.0
640×480        85.0     75.0     73.0     60.0      0.0
720×400        85.0
640×400        85.0      0.0
640×350        85.0
320×240         0.0
400×300         0.0
512×384         0.0
854×480         0.0
1280×720        0.0
1366×768        0.0
1280×800        0.0
1440×900        0.0
720×480         0.0
720×576         0.0
320×200         0.0
800×480         0.0
1672×1254       0.0
1080x1920_60.00   60.0

> xrandr –output default –mode “1080x1920_60.00”
xrandr: Failed to get size of gamma for output default
xrandr: Configure crtc 0 failed

 

[mdear]

I should mention that xrandr works on my new server in the following instance:

setenv DISPLAY :0
nostg-ott-vm-8:67> xrandr -q
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 320 x 200, current 1280 x 960, maximum 1672 x 1254
default connected 1280×960+0+0 0mm x 0mm
1280×768       60.0      0.0
1600×1200      85.0     75.0     70.0     65.0     60.0      0.0
1400×1050      75.0     60.0      0.0
1280×1024      85.0     75.0     60.0      0.0
1280×960       85.0     60.0*     0.0
1152×864       75.0      0.0
1024×768       85.0     75.0     70.0     60.0      0.0
832×624        75.0
800×600        85.0     75.0     72.0     60.0     56.0      0.0
640×480        85.0     75.0     73.0     60.0      0.0
720×400        85.0
640×400        85.0      0.0
640×350        85.0
320×240         0.0
400×300         0.0
512×384         0.0
854×480         0.0
1280×720        0.0
1366×768        0.0
1280×800        0.0
1440×900        0.0
720×480         0.0
720×576         0.0
320×200         0.0
800×480         0.0
1672×1254       0.0
nostg-ott-vm-8:68> setenv DISPLAY nostg-ott-vm-8:0
nostg-ott-vm-8:69> xrandr -q
Can’t open display nostg-ott-vm-8:0

 

An “arp nostg-ott-vm-8” command comes up with the correct IP address.

[mdear]

Both the servers are running in virtual machines, and I have tried to select the “Resize remote screen” option but it does not maximize to my monitor.

[mdear]

Output from the known-good server that is old and will soon be retired:

ott-xdm2-n2:9> xrandr -q
SZ:    Pixels          Physical       Refresh
0   1920 x 1200   ( 488mm x 258mm )   60
1    320 x 240    ( 488mm x 258mm )   60
2    640 x 360    ( 488mm x 258mm )   60
3    640 x 480    ( 488mm x 258mm )   60
4    800 x 480    ( 488mm x 258mm )   60
5    800 x 600    ( 488mm x 258mm )   60
6   1024 x 600    ( 488mm x 258mm )   60
7   1024 x 768    ( 488mm x 258mm )   60
8   1152 x 864    ( 488mm x 258mm )   60
9   1280 x 720    ( 488mm x 258mm )   60
10  1280 x 800    ( 488mm x 258mm )   60
11  1280 x 1024   ( 488mm x 258mm )   60
12  1360 x 768    ( 488mm x 258mm )   60
13  1440 x 900    ( 488mm x 258mm )   60
14  1600 x 900    ( 488mm x 258mm )   60
15  1600 x 1200   ( 488mm x 258mm )   60
16  1680 x 1050   ( 488mm x 258mm )   60
17  1920 x 1080   ( 488mm x 258mm )   60
18  3000 x 1920   ( 488mm x 258mm )   60
*19  1920 x 1017   ( 488mm x 258mm )  *60
Current rotation – normal
Current reflection – none
Rotations possible – normal
Reflections possible – none
ott-xdm2-n2:10>

Output from new server where I’m trying to install NoMachine server:

nostg-ott-vm-8:54> xrandr -q
Can’t open display nostg-ott-vm-8:0

 

Obviously something significantly wrong has occurred in the server setup/configuration, but I’m not sure how to debug further.

I’d appreciate some pointers, thanks.

 

[Author]

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