[winswitch] Specifying xmodmap settings (in a file)

Antoine Martin antoine at nagafix.co.uk
Wed Jun 6 12:38:30 BST 2012

On 06/06/2012 12:51 AM, Alexey Loginov wrote:
> Hi Antoine,
> I switched to the latest, given that you fixed the 'a' issue--thanks a lot!
> Now, I still can't apply my desired xmodmap settings and I'm a bit
> confused as to the mechanism I should follow.  Perhaps, you can
> clarify the next few points for me:
> 1. The latest version has xpra.org/trac/changeset/325 and
> winswitch.org/trac/changeset/4802.  Does one or the other of these,
> negate the need for custom xmodmap files?
In theory, xpra detects your keymap and all is well.. in theory..

> 2. When do I need the ability to set custom xmodmap settings with the
> above?  (If I don't ever run X, perhaps?)  I see that you added the
> ability to use custom xmodmap files in
> winswitch.org/trac/changeset/4903.
I have, but this is only for when you are using NX with winswitch.
(I have tested this briefly and it seemed to work)
As per above, Xpra is supposed to handle keymaps transparently for you,
so at present there are no facilities for providing overrides at present.

> 3. Do the changesets in question 1 (and the custom settings in
> question 2) handle the "clear ... ; keycode ... ; add ..." sequence
> correctly (to clear the old logical modifiers, map keysyms, and then
> apply new logical modifiers)?
No, these changesets are not going to help your special case I am afraid.

> I restarted WinSwitch with the X server running.  Then, I restarted it
> after making the conf-file changes mentioned in global_settings.py.  I
> see mentions of reading appropriate xmodmap settings in log files but
> I still don't have the Alt key work as Meta.  Any thoughts as to what
> I'm doing wrong?
Absolutely nothing!
The problem is with xpra (or to be precise, GTK/X11 and in your case
GTK/OSX) fails to detect the correct key mapping that you have...

There are a number of keyboard bugs in trac that I intend to deal with:

However, it may well be that your case cannot be fixed if the problem
lies in the underlying GTK or OSX libraries (as I believe it to be the
case), so you would need a different solution, I have created a ticket
for it here:
It does not look particularly difficult to implement, once I get around
to it...


> Thanks!
> -Alexey
> On Sun, Jun 3, 2012 at 2:55 AM, Antoine Martin <antoine at nagafix.co.uk> wrote:
>> Hi,
>> I can reproduce the missing 'a' issue now, so I will fix this asap.
>> I have created a ticket for your xmodmap settings option:
>> https://www.xpra.org/trac/ticket/134
>> Feel free to add info/comments there.
>> Cheers
>> Antoine
>> On 06/03/2012 02:36 AM, Alexey Loginov wrote:
>>> Hi all,
>>> I'm setting up xpra/WinSwitch, using older versions (0.7.36/12.10) to
>>> get around the missing 'a' issue (https://xpra.org/trac/ticket/92).
>>> Older versions don't handle xmodmap setting with modifier keys (e.g.,
>>> to swap Escape and Alt, as I do in my .Xmodmap file, shown below).
>>> Is there an easy way just to ask WinSwitch/xpra to use an existing
>>> .Xmodmap file (e.g., by copying it to .winswitch/server/xmodmap or
>>> something like that)?  I got a bit tangled up in the many set_xmodmap
>>> functions trying to use a file that I place in the above directory and
>>> not let it be overwritten with new xmodmap calls.
>>> Of course, if the partial version of xmodmap settings like below
>>> doesn't work, please let me know.  Thanks for any help!
>>> -Alexey
>>> .Xmodmap:
>>> ! Make esc and alt behave as Meta:
>>> clear Mod1
>>> clear Mod2
>>> keycode 63 = Mode_switch
>>> keycode 66 = Meta_L
>>> keycode 69 = Meta_R
>>> add Mod1 = Meta_L Meta_R
>>> add Mod2 = Mode_switch
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