Received: (at 57068) by debbugs.gnu.org; 3 Nov 2022 14:59:16 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Thu Nov 03 10:59:16 2022 Received: from localhost ([127.0.0.1]:49931 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1oqbga-0000Ox-D9 for submit <at> debbugs.gnu.org; Thu, 03 Nov 2022 10:59:16 -0400 Received: from eggs.gnu.org ([209.51.188.92]:41584) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <ludo@HIDDEN>) id 1oqbgY-0000Oi-8A for 57068 <at> debbugs.gnu.org; Thu, 03 Nov 2022 10:59:15 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <ludo@HIDDEN>) id 1oqbgS-0004zL-R0; Thu, 03 Nov 2022 10:59:08 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-Version:In-Reply-To:Date:References:Subject:To: From; bh=lndFEncecgz8Eavc68FuYIagcm6saDaAH+NrsOC2jek=; b=IhgirK174eF03ngOFRfR /t/f/CBV/M+DHaglPR3xsLDh/REBDRgl8PKi/101ruynsni9x0JrsaqvvzRlarVSTrr6ghkcQhPR+ 0s0/7kXN1rKqBpPq9qY7EFgWzTyWT4pjeVoMC5iEDzpVhIDoim1AwzLim4SXeZkyxcmF/iU/Mlsy0 G4jOK80j5Q9MMt6bg5vsj0HHHkvXQ4ZRPrn//UA5TeioEiGmQJIxFy/lBQvBnTh73uyGb0pqzdJr6 yIAs8jMgWt47d/ZQh5VoJxNSpCrBunnA8mwGLgUu6x5pe4hQ12AaQQW9nYzE8CyQVVdsGpIlAv1OE uCpXJiCV1u6wcQ==; Received: from 91-160-117-201.subs.proxad.net ([91.160.117.201] helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <ludo@HIDDEN>) id 1oqbgR-0001N9-Vz; Thu, 03 Nov 2022 10:59:08 -0400 From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN> To: Mathieu Othacehe <othacehe@HIDDEN> Subject: Re: bug#57068: Resizing mcron job in vm-image.tmpl interferes with settings References: <87r11p932e.fsf@HIDDEN> <87v8r0nbm2.fsf@HIDDEN> <87sfm3vzgl.fsf@HIDDEN> <87v8nylgig.fsf@HIDDEN> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: Tridi 13 Brumaire an 231 de la =?utf-8?Q?R=C3=A9volu?= =?utf-8?Q?tion=2C?= jour du Topinambour X-PGP-Key-ID: 0x090B11993D9AEBB5 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 3CE4 6455 8A84 FDC6 9DB4 0CFB 090B 1199 3D9A EBB5 X-OS: x86_64-pc-linux-gnu Date: Thu, 03 Nov 2022 15:59:05 +0100 In-Reply-To: <87v8nylgig.fsf@HIDDEN> (Mathieu Othacehe's message of "Tue, 01 Nov 2022 18:40:55 +0100") Message-ID: <87pme4qe2u.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 57068 Cc: 57068 <at> debbugs.gnu.org, Maxim Cournoyer <maxim.cournoyer@HIDDEN> X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) Hi, Mathieu Othacehe <othacehe@HIDDEN> skribis: >> Oh, I wasn=E2=80=99t aware of that, that should certainly be fixed. (I = fixed a >> similar issue in GNOME some years ago, and I=E2=80=99m confident it=E2= =80=99ll be easier >> to fix in Xfce because it doesn=E2=80=99t have all those layers and daem= ons and >> JavaScript and DBus interfaces. :-)) > > Fixing this behaviour in Xfce seems like the right thing to do to > conserve SPICE support and fix the QEMU resizing issue. > > This also looks like a large development, so I propose to unblock the > release with this ticket. I agree, but it would be nice to find another workaround: invoking xrandr every second is undesirable. It interferes with user settings and degrades performance, whether or not one uses SPICE. Can the guest determine whether SPICE is being used? That would allow us to make the hack conditional. Ludo=E2=80=99.
bug-guix@HIDDEN:bug#57068; Package guix.
Full text available.Mathieu Othacehe <mathieu@HIDDEN>
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From: Mathieu Othacehe <othacehe@HIDDEN>
To: Ludovic =?utf-8?Q?Court=C3=A8s?= <ludo@HIDDEN>
Subject: Re: bug#57068: Resizing mcron job in vm-image.tmpl interferes with
settings
References: <87r11p932e.fsf@HIDDEN> <87v8r0nbm2.fsf@HIDDEN>
<87sfm3vzgl.fsf@HIDDEN>
Date: Tue, 01 Nov 2022 18:40:55 +0100
In-Reply-To: <87sfm3vzgl.fsf@HIDDEN> ("Ludovic =?utf-8?Q?Court=C3=A8s=22'?=
=?utf-8?Q?s?= message of "Thu, 11 Aug 2022 12:36:42 +0200")
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Hey,
> Oh, I wasn=E2=80=99t aware of that, that should certainly be fixed. (I f=
ixed a
> similar issue in GNOME some years ago, and I=E2=80=99m confident it=E2=80=
=99ll be easier
> to fix in Xfce because it doesn=E2=80=99t have all those layers and daemo=
ns and
> JavaScript and DBus interfaces. :-))
Fixing this behaviour in Xfce seems like the right thing to do to
conserve SPICE support and fix the QEMU resizing issue.
This also looks like a large development, so I propose to unblock the
release with this ticket.
Thanks,
Mathieu
bug-guix@HIDDEN:bug#57068; Package guix.
Full text available.Received: (at 57068) by debbugs.gnu.org; 11 Aug 2022 10:36:51 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Thu Aug 11 06:36:51 2022 Received: from localhost ([127.0.0.1]:51773 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1oM5YZ-0005ap-7Y for submit <at> debbugs.gnu.org; Thu, 11 Aug 2022 06:36:51 -0400 Received: from eggs.gnu.org ([209.51.188.92]:57168) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <ludo@HIDDEN>) id 1oM5YX-0005ab-Ny for 57068 <at> debbugs.gnu.org; Thu, 11 Aug 2022 06:36:50 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:50236) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <ludo@HIDDEN>) id 1oM5YS-0000MV-Bw; Thu, 11 Aug 2022 06:36:44 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-Version:In-Reply-To:Date:References:Subject:To: From; bh=+zGvljcUSk8F4lzen+rw0aG4GhWGoXdTdS8CbAajpOs=; b=jqRgOmZvZAj8vD/aaoEz GZ5S/ielF3Cb0mgb46kqFBAy1DvqsqcnKRuxZMRbzt+C1WDbqLsi3avjYE96rvGt/ACzb9DGUrF7U E4xzCMGQ7i8zhBereRO25gWj94hNF4KHMcoFW3u0aOW1NBF7fTNHaiVCHFBRDWIGk8PJpDd3eCoHC b8KQitba40Yt9RSyOU3csIxq7rU8faCqQWtW+XHASk6Co7xmLcp+9Yi10ce2xILDc/KE8nf9yxLfW 5rh1itSUAaqwiKirYwqHpFP6UgRIAjY8D3K0zoAGyy7cvPRu6VI3ABPyC0qjUEfP7L2+JC7C6L+HU 7641TW/b8OlJkQ==; Received: from [2001:660:6102:320:e120:2c8f:8909:cdfe] (port=51402 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <ludo@HIDDEN>) id 1oM5YR-0006bj-Rw; Thu, 11 Aug 2022 06:36:44 -0400 From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN> To: Maxim Cournoyer <maxim.cournoyer@HIDDEN> Subject: Re: bug#57068: Resizing mcron job in vm-image.tmpl interferes with settings References: <87r11p932e.fsf@HIDDEN> <87v8r0nbm2.fsf@HIDDEN> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: Quartidi 24 Thermidor an 230 de la =?utf-8?Q?R=C3=A9?= =?utf-8?Q?volution=2C?= jour de =?utf-8?Q?l'Aun=C3=A9e?= X-PGP-Key-ID: 0x090B11993D9AEBB5 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 3CE4 6455 8A84 FDC6 9DB4 0CFB 090B 1199 3D9A EBB5 X-OS: x86_64-pc-linux-gnu Date: Thu, 11 Aug 2022 12:36:42 +0200 In-Reply-To: <87v8r0nbm2.fsf@HIDDEN> (Maxim Cournoyer's message of "Tue, 09 Aug 2022 21:14:29 -0400") Message-ID: <87sfm3vzgl.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 57068 Cc: 57068 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) Hi Maxim, Maxim Cournoyer <maxim.cournoyer@HIDDEN> skribis: > The vm-image.tmpl is the template we use for our graphical Guix demo > QEMU image that can be downloaded from our site > (https://guix.gnu.org/en/download/ -> > https://ftp.gnu.org/gnu/guix/guix-system-vm-image-1.3.0.x86_64-linux.qcow= 2). > > This commit was made to allow SPICE dynamic resizing to work, as > mentioned in a comment part of this commit. XFCE lacks support for it, > as also mentioned in the comment > (https://gitlab.xfce.org/xfce/xfce4-settings/-/issues/142), which means > a new user downloading the image and running it in a SPICE-capable > viewer such as virt-manager or gnome-boxes will be dismayed that it > doesn't resize as they may have come to expect from other modern > distributions. Understood. (I wonder if the QEMU Guest Agent can serve a similar purpose.) >> Should we remove this workaround, possibly finding another one? > > I think we should use a desktop environment that is better maintained, I think this is unfair criticism: Xfce is actively maintained, with a large user base. > and which works well with SPICE, without hacks, given the improvements > to the user experience it provides, and given it's important that a > first user encounter with Guix be smooth and shiny. GNOME could do it, > at the cost of a bigger image size. Right. I wouldn=E2=80=99t mind GNOME, but one reason we went for Xfce is t= hat GNOME is just too big, at least as currently packaged in Guix. > There are other, perhaps worst issues with XFCE, which is that the > keyboard layout switcher doesn't work, and it didn't seem trivial to fix > when I looked at it. Oh, I wasn=E2=80=99t aware of that, that should certainly be fixed. (I fix= ed a similar issue in GNOME some years ago, and I=E2=80=99m confident it=E2=80= =99ll be easier to fix in Xfce because it doesn=E2=80=99t have all those layers and daemons= and JavaScript and DBus interfaces. :-)) That=E2=80=99s a general issue with all Xfce installations, not just in the= VM image, right? Thanks, Ludo=E2=80=99.
bug-guix@HIDDEN:bug#57068; Package guix.
Full text available.Received: (at 57068) by debbugs.gnu.org; 11 Aug 2022 10:30:25 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Thu Aug 11 06:30:25 2022 Received: from localhost ([127.0.0.1]:51767 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1oM5SL-0005R7-DG for submit <at> debbugs.gnu.org; Thu, 11 Aug 2022 06:30:25 -0400 Received: from eggs.gnu.org ([209.51.188.92]:56360) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <ludo@HIDDEN>) id 1oM5SJ-0005Qu-LP for 57068 <at> debbugs.gnu.org; Thu, 11 Aug 2022 06:30:24 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:50166) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <ludo@HIDDEN>) id 1oM5SE-00086a-27; Thu, 11 Aug 2022 06:30:18 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-Version:In-Reply-To:Date:References:Subject:To: From; bh=sdfkpXJJlKjacr6d2gGOqId2kPNr5TPOGCTxxciYugo=; b=RSH6uaid5yQfSNvjbPrk blV6ZdZg9DKCLW/4j2V64zbXnedqXMdKeTTJppNqDsOHeTFzCKBF/jDbiQ8ArxZ1IXL4XdVZsj+82 u2u8nblDh5mLbky+LkgRU7QSveBw3CCJj4otT+luT+cH5J8oIwFs6RzVzKW1AeBw+mm2L25Q2+/yO M2x/sJgL6Qjxar/4N+ZqnZfVuvUswY6x0/dZJux3/UEqV8Ae8H2OI4fsF5/+llsUjy3doTToHVdej QVP6RUYd5NG/aN1OlUgiihElLqXzcKp5iWklAj1HDAnwkdPcjpR+qmCbltp75syHsJ+eVJQ6z+SQs bWbxQmcBmj4EIw==; Received: from [2001:660:6102:320:e120:2c8f:8909:cdfe] (port=32818 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <ludo@HIDDEN>) id 1oM5SC-0000E9-9v; Thu, 11 Aug 2022 06:30:17 -0400 From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN> To: Maxim Cournoyer <maxim.cournoyer@HIDDEN> Subject: Re: bug#57068: Resizing mcron job in vm-image.tmpl interferes with settings References: <87r11p932e.fsf@HIDDEN> <87edxp92ai.fsf@HIDDEN> <87wnbgln8z.fsf@HIDDEN> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: Quartidi 24 Thermidor an 230 de la =?utf-8?Q?R=C3=A9?= =?utf-8?Q?volution=2C?= jour de =?utf-8?Q?l'Aun=C3=A9e?= X-PGP-Key-ID: 0x090B11993D9AEBB5 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 3CE4 6455 8A84 FDC6 9DB4 0CFB 090B 1199 3D9A EBB5 X-OS: x86_64-pc-linux-gnu Date: Thu, 11 Aug 2022 12:30:14 +0200 In-Reply-To: <87wnbgln8z.fsf@HIDDEN> (Maxim Cournoyer's message of "Wed, 10 Aug 2022 00:46:04 -0400") Message-ID: <87zggbvzrd.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 57068 Cc: 57068 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) Hi, Maxim Cournoyer <maxim.cournoyer@HIDDEN> skribis: >> There=E2=80=99s a third problem that I initially thought was unrelated: >> >> 3. The mcron job starts running before =E2=80=98xorg-server=E2=80=99 i= s up, and that >> can cause Xorg to fail to start. >> >> Namely, if you run the command above, you=E2=80=99ll see that Xorg start= s and >> fails typically a few times in a row, until it eventually succeeds. In >> /var/log/messages, you can see that the =E2=80=98xorg-server=E2=80=99 pr= ocess exits with >> code 1 (without any indication of what went wrong AFAICS) and the >> service gets respawned. >> >> Now if you remove the mcron job and boot the VM, the =E2=80=98xorg-serve= r=E2=80=99 >> service successfully starts. It=E2=80=99s 100% reproducible for me. > > I tried to reproduce the problem without any luck on my machine (it > always boots fine). Odd. Does =E2=80=98xorg-server=E2=80=99 successfully start from the first time, = or does succeed after a few tries? For me it systemically tries a couple of time before it succeeds. Ludo=E2=80=99.
bug-guix@HIDDEN:bug#57068; Package guix.
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From: Maxim Cournoyer <maxim.cournoyer@HIDDEN>
To: Ludovic =?utf-8?Q?Court=C3=A8s?= <ludo@HIDDEN>
Subject: Re: bug#57068: Resizing mcron job in vm-image.tmpl interferes with
settings
References: <87r11p932e.fsf@HIDDEN> <87edxp92ai.fsf@HIDDEN>
Date: Wed, 10 Aug 2022 00:46:04 -0400
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=?utf-8?Q?s?= message of "Tue, 09 Aug 2022 11:47:17 +0200")
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Hi,
Ludovic Court=C3=A8s <ludo@HIDDEN> writes:
> Ludovic Court=C3=A8s <ludo@HIDDEN> skribis:
>
>> Commit 945ad48cd8029fa77a643e00c7fd350e98cacca0 added an mcron job to
>> =E2=80=98vm-image.tmpl=E2=80=99 that resets screen size every second. I=
=E2=80=99m don=E2=80=99t fully
>> understand the problem this was addressing, but it has two drawbacks:
>>
>> 1. Kicking in every second is inefficient.
>>
>> 2. Resetting the screen size prevents users from changing it. For
>> example, if I run:
>>
>> $(guix system vm gnu/system/examples/vm-image.tmpl) -m 1024
>>
>> then go to the Xfce menu, Settings -> Display, and change the screen
>> size, I have it immediately reset back to the default value.
>
> There=E2=80=99s a third problem that I initially thought was unrelated:
>
> 3. The mcron job starts running before =E2=80=98xorg-server=E2=80=99 is=
up, and that
> can cause Xorg to fail to start.
>
> Namely, if you run the command above, you=E2=80=99ll see that Xorg starts=
and
> fails typically a few times in a row, until it eventually succeeds. In
> /var/log/messages, you can see that the =E2=80=98xorg-server=E2=80=99 pro=
cess exits with
> code 1 (without any indication of what went wrong AFAICS) and the
> service gets respawned.
>
> Now if you remove the mcron job and boot the VM, the =E2=80=98xorg-server=
=E2=80=99
> service successfully starts. It=E2=80=99s 100% reproducible for me.
I tried to reproduce the problem without any luck on my machine (it
always boots fine). Odd.
I don't mind the hack removed, but I think we should aim to keep SPICE
dynamic resizing working, and currently that'd mean switching desktop
environment, unless we fix
https://gitlab.xfce.org/xfce/xfce4-settings/-/issues/142 (GNOME had
adjusted for the years old change in SPICE with
https://gitlab.gnome.org/GNOME/mutter/-/commit/957513242c26be458be7a101b831=
80e3f59f6a44),
in case your looking for something fun to hack on :-).
Thanks,
Maxim
bug-guix@HIDDEN:bug#57068; Package guix.
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From: Maxim Cournoyer <maxim.cournoyer@HIDDEN>
To: Ludovic =?utf-8?Q?Court=C3=A8s?= <ludo@HIDDEN>
Subject: Re: bug#57068: Resizing mcron job in vm-image.tmpl interferes with
settings
References: <87r11p932e.fsf@HIDDEN>
Date: Tue, 09 Aug 2022 21:14:29 -0400
In-Reply-To: <87r11p932e.fsf@HIDDEN> ("Ludovic =?utf-8?Q?Court=C3=A8s=22?=
=?utf-8?Q?'s?= message of "Tue, 09 Aug 2022 11:30:33 +0200")
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Hi Ludovic,
Ludovic Court=C3=A8s <ludo@HIDDEN> writes:
> Hello!
>
> Commit 945ad48cd8029fa77a643e00c7fd350e98cacca0 added an mcron job to
> =E2=80=98vm-image.tmpl=E2=80=99 that resets screen size every second. I=
=E2=80=99m don=E2=80=99t fully
> understand the problem this was addressing, but it has two drawbacks:
The vm-image.tmpl is the template we use for our graphical Guix demo
QEMU image that can be downloaded from our site
(https://guix.gnu.org/en/download/ ->
https://ftp.gnu.org/gnu/guix/guix-system-vm-image-1.3.0.x86_64-linux.qcow2).
This commit was made to allow SPICE dynamic resizing to work, as
mentioned in a comment part of this commit. XFCE lacks support for it,
as also mentioned in the comment
(https://gitlab.xfce.org/xfce/xfce4-settings/-/issues/142), which means
a new user downloading the image and running it in a SPICE-capable
viewer such as virt-manager or gnome-boxes will be dismayed that it
doesn't resize as they may have come to expect from other modern
distributions.
> 1. Kicking in every second is inefficient.
5% on my machine, as mentioned in the commit message. The trade is
still on the winning side for me (dynamic resizing is a big upgrade for
the user experience in my book).
> 2. Resetting the screen size prevents users from changing it. For
> example, if I run:
>
> $(guix system vm gnu/system/examples/vm-image.tmpl) -m 1024
>
> then go to the Xfce menu, Settings -> Display, and change the screen
> size, I have it immediately reset back to the default value.
OK. I didn't know this could be workable use case with the stock QEMU
viewer when playing with graphical VMs.
> Should we remove this workaround, possibly finding another one?
I think we should use a desktop environment that is better maintained,
and which works well with SPICE, without hacks, given the improvements
to the user experience it provides, and given it's important that a
first user encounter with Guix be smooth and shiny. GNOME could do it,
at the cost of a bigger image size.
There are other, perhaps worst issues with XFCE, which is that the
keyboard layout switcher doesn't work, and it didn't seem trivial to fix
when I looked at it.
What do you think?
Thanks,
Maxim
bug-guix@HIDDEN:bug#57068; Package guix.
Full text available.Ludovic Courtès <ludo@HIDDEN>
to control <at> debbugs.gnu.org.
Full text available.Ludovic Courtès <ludo@HIDDEN>
to control <at> debbugs.gnu.org.
Full text available.
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From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN>
To: 57068 <at> debbugs.gnu.org
Subject: Re: bug#57068: Resizing mcron job in vm-image.tmpl interferes with
settings
References: <87r11p932e.fsf@HIDDEN>
Date: Tue, 09 Aug 2022 11:47:17 +0200
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=?utf-8?Q?'s?= message of "Tue, 09 Aug 2022 11:30:33 +0200")
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Ludovic Court=C3=A8s <ludo@HIDDEN> skribis:
> Commit 945ad48cd8029fa77a643e00c7fd350e98cacca0 added an mcron job to
> =E2=80=98vm-image.tmpl=E2=80=99 that resets screen size every second. I=
=E2=80=99m don=E2=80=99t fully
> understand the problem this was addressing, but it has two drawbacks:
>
> 1. Kicking in every second is inefficient.
>
> 2. Resetting the screen size prevents users from changing it. For
> example, if I run:
>
> $(guix system vm gnu/system/examples/vm-image.tmpl) -m 1024
>
> then go to the Xfce menu, Settings -> Display, and change the screen
> size, I have it immediately reset back to the default value.
There=E2=80=99s a third problem that I initially thought was unrelated:
3. The mcron job starts running before =E2=80=98xorg-server=E2=80=99 is u=
p, and that
can cause Xorg to fail to start.
Namely, if you run the command above, you=E2=80=99ll see that Xorg starts a=
nd
fails typically a few times in a row, until it eventually succeeds. In
/var/log/messages, you can see that the =E2=80=98xorg-server=E2=80=99 proce=
ss exits with
code 1 (without any indication of what went wrong AFAICS) and the
service gets respawned.
Now if you remove the mcron job and boot the VM, the =E2=80=98xorg-server=
=E2=80=99
service successfully starts. It=E2=80=99s 100% reproducible for me.
I suppose the =E2=80=98xrandr=E2=80=99 command can kick in too early while =
Xorg is
initializing, causing it to exit.
Ludo=E2=80=99.
bug-guix@HIDDEN:bug#57068; Package guix.
Full text available.
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From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN>
To: bug-guix@HIDDEN
Subject: Resizing mcron job in vm-image.tmpl interferes with settings
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Hello!
Commit 945ad48cd8029fa77a643e00c7fd350e98cacca0 added an mcron job to
=E2=80=98vm-image.tmpl=E2=80=99 that resets screen size every second. I=E2=
=80=99m don=E2=80=99t fully
understand the problem this was addressing, but it has two drawbacks:
1. Kicking in every second is inefficient.
2. Resetting the screen size prevents users from changing it. For
example, if I run:
$(guix system vm gnu/system/examples/vm-image.tmpl) -m 1024
then go to the Xfce menu, Settings -> Display, and change the screen
size, I have it immediately reset back to the default value.
Should we remove this workaround, possibly finding another one?
Thanks,
Ludo=E2=80=99.
Ludovic Courtès <ludo@HIDDEN>:maxim.cournoyer@HIDDEN, bug-guix@HIDDEN.
Full text available.maxim.cournoyer@HIDDEN, bug-guix@HIDDEN:bug#57068; Package guix.
Full text available.
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