Re: F38 proposal: X Server Prohibits Byte-swapped Clients (System-Wide Change proposal)

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> Am 29.12.2022 um 16:29 schrieb David Malcolm <dmalcolm@xxxxxxxxxx>:
> 
> On Thu, 2022-12-29 at 13:03 +1000, Peter Hutterer wrote:
>> On Thu, Dec 22, 2022 at 09:17:28PM +0100, Björn Persson wrote:
>>> Vít Ondruch wrote:
>>>> Dne 22. 12. 22 v 9:56 Olivier Fourdan napsal(a):
>>>>> When the connection fails, the Xserver returns a reason in
>>>>> plain text.
>>>>> In that case, the reason for the connection being rejected
>>>>> would be
>>>>> „Swapped clients prohibited“.  
>>>> 
>>>> Appreciate that there is at least some explanation, but if I saw
>>>> this 
>>>> error, I would not be much smarter what is going on and how
>>>> should I 
>>>> proceed ....
>>> 
>>> Yes, that's a really bad error message. My reaction would be "What
>>> nonsense is that? I haven't swapped any clients." If it had at
>>> least
>>> said "byte-swapped" it would probably have gotten me searching in
>>> the
>>> right direction, but if the X server wants to be helpful it should
>>> say
>>> "big/little-endian mismatch; the option AllowSwappedClients is
>>> off".
>> 
>> Thanks, I've changed the error message to say `byte-swapped`, it
>> hasn't
>> been merged upstream yet after all. This particular message is
>> handled
>> in the DDX-independent bits though (shared code for Xorg, Xwayland,
>> etc.), the option AllowSwappedClients only exists for Xorg since the
>> other X server don't have an xorg.conf.
> 
> Could the error message include a URL to documentation about the config
> option?  That would really help discoverability.

I would also strongly advocate / asking to make the (error) message more detailed. So don't just make it "byte-swapped" but refer to the configurability , even if it's just a "see <file>.conf“. 

Especially if something has worked before, this is very important. 




--
Peter Boy
https://fedoraproject.org/wiki/User:Pboy
pboy@xxxxxxxxxxxxxxxxx

Timezone: CET (UTC+1) / CEST (UTC+2)


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