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Hello, Gentoo. |
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A new kernel, gentoo-sources-5.10.49-r1 has become current. |
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For those who wish to have console soft scrolling, the patch which worked |
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with 5.10.27 actually still works in 5.10.49-r1. But I've tidied that |
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patch up somewhat for 5.10.49-r1 and have attached the patch file to this |
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post. |
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The instructions for using it are basically unchanged, apart from file |
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names, etc. Updating those instructions gives us: |
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(i) Extract the attached patch file to your |
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/usr/src/linux-5.10.49-gentoo-r1 directory (or probably any 5.10 |
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kernel's). |
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(ii) From that directory run $ patch -p0 < 5.10.49-scroll.20210715.diff. |
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(iii)(a) If you've already got a working 5.10.49-r1, do a $ make oldconfig. |
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That should bring up the new configuration items, for which you can |
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accept the defaults. These two items are a flag to enable the |
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scrollback, and a buffer size defaulting to 128kB. |
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(iii)(b) If you haven't yet got a 5.10.49-r1, just configure your kernel |
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in the usual way. The two new items are under Device Drivers/Graphics |
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support/Console display driver support. |
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(iv) Build the kernel. |
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(v) Put the new kernel into your usual boot manager. |
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(vi) Reboot and enjoy! |
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|
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As before, it works for me, and there's nothing malicious in it, but if |
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it breaks for you, I'm sorry but I won't be responsible. |
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|
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-- |
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Alan Mackenzie (Nuremberg, Germany). |
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On Mon, Apr 05, 2021 at 17:12:07 +0000, Alan Mackenzie wrote: |
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> Hello, Gentoo. |
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|
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> Yes, console soft scrolling is back! That essential feature that was |
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> stripped out of the kernel at around 5.4.x has returned! |
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> Only this time, it's even better! Instead of one scrollback buffer |
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> shared between all tty's, there's now a buffer for each tty. |
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|
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> How to get it working: |
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> (i) Extract the enclosed patch file to your /usr/src/linux-5.10.27-gentoo |
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> directory (or probably any 5.10 kernel's). |
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> (ii) From that directory run $ patch -p0 < diff.20210405.diff. |
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> (iii)(a) If you've already got a working 5.10.27, do a $ make oldconfig. |
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> That should bring up the new configuration items, for which you can |
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> accept the defaults. These two items are a flag to enable the |
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> scrollback, and a buffer size defaulting to 128kB. |
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> (iii)(b) If you haven't yet got a 5.10.27, just configure your kernel in |
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> the usual way. The two new items are under Device Drivers/Graphics |
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> support/Console display driver support. |
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> (iv) Build the kernel. |
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> (v) Put the new kernel into your usual boot manager. |
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> (vi) Reboot and enjoy! |
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|
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> Admittedly, the exercise isn't quite finished - the patched source files |
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> still have my personal change markings in them, to make debugging easier. |
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> But the problems I reported here a few days ago are now solved. One or |
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> two features haven't (yet) been implemented - having a single scroll |
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> buffer shared amongst all tty's isn't there, and there're no kernel |
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> command line parameters to control the feature. |
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> Also, you may wonder about how safe the patch is. All I can say is that |
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> there is nothing malicious in it, and I am known on this list, but of |
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> course if it breaks I won't be to blame. |
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> Bug reports and other comments are welcome, of course. |
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> If anybody would like the corresponding patch which works on 5.4.n, for n |
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> >= 80, that is available, too. |
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|
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> -- |
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> Alan Mackenzie (Nuremberg, Germany). |
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