Subsections

• • 5.0.1 Video Mode Selection
  • 5.0.2 Unlocked display, Help!

5 Boot Monitor

This is the only software ``built in'' to the units, and can be accessed by hitting the spacebar to abort the boot process.

Some useful commands are detailed here, more information can be found by typing help or ? at the BOOT> prompt.

5.0.1 Video Mode Selection

These terminals support a useful range of video modes, accessed through the se monset <mode> command, which is not detailed in the built-in help.

se monset on its own provides a list of supported modes, which are as follows on mine. This probably varies depending on which version of the boot monitor firmware you've got, mine has 'TekXpress Boot Monitor 5.9' from which this list was taken.

mode	H Res	V Res	H freq (Hz)	V freq (kHz)	monitor
2	640	480	72	37.5	14'' Colour
3	800	600	60	37.9	15'' Colour
4	800	600	72	48.2	15'' Colour
5	1024	768	60	48.0	19'' Colour
6	1024	768	60	48.2	15'' Colour
7	1024	768	72	57.8	15'' Colour
11	1024	768	76	60.9	17'' Colour
12	1024	768	85	68.3	17'' Colour
13	1024	768	85	68.3	19'' Colour
15	1152	900	72	67.5	17'' Colour
16	1152	900	72	67.5	19'' Colour
17	1280	1024	60	63.1	16'' Colour
18	1280	1024	60	63.1	19'' Colour
19	1280	1024	60	63.1	17'' Colour
20	1280	1024	60	63.1	19'' Colour
21	1152	900	85	80.1	17'' Colour
22	1152	900	85	80.1	19'' Colour
23	1280	1024	72	76.4	19'' Grey Scale
24	1280	1024	72	76.4	17'' Colour
25	1280	1024	72	76.4	19'' Colour
26	1024	768	70	56.9	14'' Colour
27	1152	900	60	56.9	14'' Colour
28	1360	1024	60	63.9	19'' Colour
30	640	480	60	31.4	14'' Colour
31	1280	1024	72	76.3	20'' Colour
32	1360	1024	70	74.3	20'' Colour
33	1280	1024	74	79.0	17'' Colour
34	1152	900	72	69.1	17'' Grey Scale
35	1024	768	70	56.4	14'' Colour
36	1280	1024	71	75.7	17'' Colour
37	1280	1024	71	75.7	19'' Colour
39	1152	900	70	64.4	17'' Colour
40	1280	1024	72	78.3	19'' Grey Scale
43	640	480	60	31.4	10'' Colour
44	800	600	56	35.1	10'' Colour
45	1280	1024	60	63.6	14'' Colour
46	1024	768	70	56.4	15'' Colour
47	1280	1024	73	77.9	17'' Colour
48	1280	1024	73	77.9	19'' Colour
49	1280	1024	60	64.6	13'' Colour
50	1280	1024	60	64.6	13'' Colour
51	1280	1024	72	78.2	19'' Colour
52	1152	900	66	61.7	16'' Colour
57	480	640	60	41.8	10'' Colour

5.0.2 Unlocked display, Help!

If you've connected a monitor which doesn't support the mode the terminal is currently set to and get an unlocked display, you can select one that works by the following method.

1. Switch off.
2. Disconnect the LAN connection (to make sure it won't boot).
3. Switch on.
4. Wait 5 seconds.
5. Hit the spacebar (this aborts the boot process and brings up the BOOT> prompt, though you won't be able to see it at this point.)
6. Type se monset <mode> (where <mode> is a number from the table above) then hit `return', whereupon, if you selected a usable mode, you should have a usable display.
   se monset 3 should work on all but the most archaic monitors.

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