Page numbers not showing in place

[Daniel]

On 30/11/2021 08:08, Melvin Bolton wrote:
> Hello Paul
> 
> Thank you for your response. I've cut the Lyx document down to the few 
> first pages, and am also attaching the pdf output from it. You will see 
> one entry in the preamble that reverses the odd/even pages. Without 
> this, the right side (recto) pages show the left page margins, but the 
> numbering problem remains, with or without that entry in the preamble.
> 
> Melvin
> 
> On 30/11/2021 10:44, Paul A. Rubin wrote:
>> On 11/29/21 7:00 PM, Melvin Bolton wrote:
>>> I have in the past completed a lengthy book, using Lyx,  without 
>>> needing to trouble anybody for help, but I'm now baffled by what 
>>> should be a simple, basic task and I have no idea what to try next.
>>>
>>> My problem is that the pagestyle settings that should place page 
>>> numbers in the footer, are showing them in the output only on the 
>>> first page of each chapter, which the User Guide says is treated by 
>>> Lyx as a special environment.
>>> I began with KOMA-Script ( scrbook) with pagestyle set to 'plain' as 
>>> I'd done previously. This places page numbers in the outer end of the 
>>> footer as I prefer them. When I found them only appearing on the 
>>> first page of each chapter I searched online and tried pasting a few 
>>> commands in the preamble but nothing helped and mostly I got 
>>> compilation errors. I've cleared the preamble.
>>>
>>> I tried Lyx Standard Class (Book) with pagestyle set to 'plain', 
>>> which centred the page numbers as it should, but still only on first 
>>> pages of chapters. Neither was there any improvement after I tried 
>>> pagestyle set to 'fancy' and tried to customize that. It's as though 
>>> chapter footers are not accessible, except for first page.
>>>
>>> In my document, immediately before the first chapter, I have the 
>>> following ERT:  \mainmatter\pagestyle{plain} \setcounter{page}{1}
>>>
>>> The frontmatter is fine because I have don't want page numbers there 
>>> and have pagestyle set to 'empty.' That, at least, has worked; there 
>>> were Roman numerals there to begin with.
>>> Finally, I did a reinstallation of Lyx (ver. 2.3.6.1) in case of 
>>> corruption, (apparently not) and I'm now out of ideas.
>>>
>>> I shall be truly grateful for any help, but I will need precise 
>>> instruction if I am to paste commands correctly into the preamble. I 
>>> really am an old novice.
>>>
>>> Thank you

Hi Melvin,

Try removing the centering from the ERT with

\mainmatter\pagestyle{plain} \setcounter{page}{1}

That seems to mess things up, probably because pagestyle is then in an 
environment?!? (Also, I think you can skip \setcounter{page}{1} because 
\mainmatter should take care of that and you can switch back to the 
KOMA-script book class.)

Best,
Daniel