Re: lv2 support for Debian 12 & zooming crash
Babarosa via Rosegarden-user <rosegarden-user-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org> Sat, 24 Jan 2026 21:44:39 +0100
| Newsgroups | gmane.comp.audio.rosegarden.user |
|---|---|
| Message-ID | <[email protected]> |
This is a multi-part message in MIME format. --===============4908539200858415669== Content-Type: multipart/alternative; boundary="------------IXo1IWj0xBYnU8Pun1y0VJWe" Content-Language: en-US This is a multi-part message in MIME format. --------------IXo1IWj0xBYnU8Pun1y0VJWe Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable Hi! One last additional remark: I changed my desktop theme from a gtk2 to a gtk3 theme using fusion=20 style instead of gtk2 on Debian 12 with Xfce DE. This strange "bug" seems to be gone ... Greetings, Michael Am 24.01.26 um 18:59 schrieb Babarosa via Rosegarden-user: > > Hi! > > I built the latest git version just now. Builds fine with lv2 using=20 > Debian 12, cmake 3.25. > > The strange Qt bug is still here. My way of using the zoom wheels is=20 > so incredibly stupid that in real use I think nobody will be facing=20 > this bug while working in Rosegarden. > > Since nobody confirmed this issue, I wonder if it is worth exploring=20 > further? I already installed Debian 13 but still have to set up the=20 > audio applications. > > Thank you once again and greetings, Michael > > Am 21.01.26 um 20:12 schrieb Ted Felix: >> > If this is a bug and very rare, will it be named after me? >> >> =C2=A0 Ha!=C2=A0 No.=C2=A0 It will be named after whatever part of Qt i= s messing=20 >> this up. >> >> =C2=A0 Give the latest in git a try.=C2=A0 I've rewritten all the matri= x zoom=20 >> code and it might be more stable for you now. >> >> Ted. >> >> On 1/21/26 6:52 AM, Babarosa wrote: >>> Do you have a procedure that starts from an empty composition? >>> >>> Not really, I didn't manage to crash Rosegarden using an empty=20 >>> composition. >>> >>> Please do not laugh, but to trigger this crash I use the zoom wheels= =20 >>> very rapidly like a lunatic (!) from maximum to minimum. Sometimes=20 >>> Rosegarden crashes after 15 movements, sometimes it takes 30 seconds. >>> >>> If this is a bug and very rare, will it be named after me? >>> >>> Thanks and Greetings, Michael >>> >>> >>>> Gesendet: Montag, 19. Januar 2026 um 03:25 >>>> Von: "Ted Felix" <ted-Ll1PANez7xxWk0Htik3J/[email protected]> >>>> An: Babarosa <[email protected]>, rosegarden-user=20 >>>> <rosegarden-user-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org> >>>> Betreff: Re: [Rosegarden-user] lv2 support for Debian 12 & zooming=20 >>>> crash >>>> >>>> Fascinating.=C2=A0 This crash only touches us once at Panned.cpp:66.= =C2=A0 And >>>> that's just a message forward.=C2=A0 Unlikely that it is an rg proble= m.=C2=A0=20 >>>> More >>>> likely a Qt5 bug.=C2=A0 We might want to try watching for a null even= t >>>> pointer there, but I have a feeling that never happens as it would=20 >>>> cause >>>> an earlier crash (shorter call stack). >>>> >>>> =C2=A0=C2=A0=C2=A0 Do you have a procedure that starts from an empty = composition?=C2=A0=20 >>>> Don't >>>> spend any time on it if not.=C2=A0 It would just be nice to see if it= is >>>> reproducible with Qt6 and Philip could test that very easily. >>>> >>>> =C2=A0=C2=A0=C2=A0 I'll spend a little time beating it up with some h= uge=20 >>>> compositions I >>>> have lying around. >>>> >>>> Ted. >>>> >>>> On 1/18/26 5:24 PM, Babarosa wrote: >>>> > Please find attached the info. I can reproduce this crash. >>>> > >>>> > Thank you for helping, Michael >>>> > >>>> > Am 18.01.26 um 16:43 schrieb Ted Felix: >>>> >> Ok. Usually for this kind of thing, running a debug build=20 >>>> using ASAN >>>> >> will give us a lot more information when it does=20 >>>> crash. Or you can >>>> >> run a debug build with gdb, which is a little more=20 >>>> cumbersome, but >>>> >> should get some good crash information for us to work with. >>>> >> >>>> >> Let me know if you need help setting either of=20 >>>> those up. The cmake >>>> >> line for ASAN is: >>>> >> >>>> >> cmake .. -DCMAKE_BUILD_TYPE=3DDebug=20 >>>> -DCMAKE_CXX_FLAGS=3D"-Werror - >>>> >> fsanitize=3Daddress -fno-omit-frame-pointer" >>>> >> >>>> >> It's in the README.md. >>>> >> >>>> >> Ted. >> > > > _______________________________________________ > Rosegarden-user mailing list > Rosegarden-user-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org - use the link below to unsubscrib= e > https://lists.sourceforge.net/lists/listinfo/rosegarden-user --------------IXo1IWj0xBYnU8Pun1y0VJWe Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable <!DOCTYPE html> <html> <head> <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DUTF-= 8"> </head> <body> <p>Hi!</p> <p>One last additional remark:</p> <p>I changed my desktop theme from a gtk2 to a gtk3 theme using fusion style instead of gtk2 on Debian 12 with Xfce DE.</p> <p>This strange "bug" seems to be gone ...</p> <p>Greetings, Michael</p> <div class=3D"moz-cite-prefix">Am 24.01.26 um 18:59 schrieb Babarosa via Rosegarden-user:<br> </div> <blockquote type=3D"cite" cite=3D"mid:b645cf38-1571-4d01-a783-66a4187613a8-RbZlAiThDcE@public.gmane.org"> <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DUT= F-8"> <p>Hi!</p> <p>I built the latest git version just now. Builds fine with lv2 using Debian 12, cmake 3.25.</p> <p>The strange Qt bug is still here.=C2=A0<span class=3D"HwtZe" lang= =3D"en"><span class=3D"jCAhz ChMk0b"><span class=3D"ryNqvb">My way of using the zoom wheels is so incredibly stupid that in real use I think nobody will be facing this bug while working in Rosegarden.</span></span></span></p> <p><span class=3D"HwtZe" lang=3D"en"><span class=3D"jCAhz ChMk0b"><s= pan class=3D"ryNqvb">Since nobody confirmed this issue, I wonder if it is worth exploring further? I already installed Debian 13 but still have to set up the audio applications.</= span></span></span></p> <p><span class=3D"HwtZe" lang=3D"en"><span class=3D"jCAhz ChMk0b"><s= pan class=3D"ryNqvb">Thank you once again and greetings, Michael= </span></span></span></p> <div class=3D"moz-cite-prefix">Am 21.01.26 um 20:12 schrieb Ted Felix:<br> </div> <blockquote type=3D"cite" cite=3D"mid:d608c3fb-e267-44cc-b217-bac0437f0bb1-Ll1PANez7xxWk0Htik3J/[email protected]">>= ; If this is a bug and very rare, will it be named after me? <br> <br> =C2=A0 Ha!=C2=A0 No.=C2=A0 It will be named after whatever part of= Qt is messing this up. <br> <br> =C2=A0 Give the latest in git a try.=C2=A0 I've rewritten all the = matrix zoom code and it might be more stable for you now. <br> <br> Ted. <br> <br> On 1/21/26 6:52 AM, Babarosa wrote: <br> <blockquote type=3D"cite">Do you have a procedure that starts from an empty composition? <br> <br> Not really, I didn't manage to crash Rosegarden using an empty composition. <br> <br> Please do not laugh, but to trigger this crash I use the zoom wheels very rapidly like a lunatic (!) from maximum to minimum. Sometimes Rosegarden crashes after 15 movements, sometimes it takes 30 seconds. <br> <br> If this is a bug and very rare, will it be named after me? <br> <br> Thanks and Greetings, Michael <br> <br> <br> <blockquote type=3D"cite">Gesendet: Montag, 19. Januar 2026 um 03:25 <br> Von: "Ted Felix" <a class=3D"moz-txt-link-rfc2396E" href=3D"mailto:ted-Ll1PANez7xxWk0Htik3J/[email protected]" moz-do-not-send=3D"true">&l= t;ted-Ll1PANez7xxWk0Htik3J/[email protected]></a> <br> An: Babarosa <a class=3D"moz-txt-link-rfc2396E" href=3D"mailto:[email protected]" moz-do-not-send=3D"true"><= ;[email protected]></a>, rosegarden-user <a class=3D"moz-txt-link-rfc2396E" href=3D"mailto:rosegarden-user-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org" moz-do-not-send=3D"true"><[email protected]= ge.net></a> <br> Betreff: Re: [Rosegarden-user] lv2 support for Debian 12 & zooming crash <br> <br> Fascinating.=C2=A0 This crash only touches us once at Panned.cpp:66.=C2=A0 And <br> that's just a message forward.=C2=A0 Unlikely that it is an rg problem.=C2=A0 More <br> likely a Qt5 bug.=C2=A0 We might want to try watching for a nu= ll event <br> pointer there, but I have a feeling that never happens as it would cause <br> an earlier crash (shorter call stack). <br> <br> =C2=A0=C2=A0=C2=A0 Do you have a procedure that starts from an= empty composition?=C2=A0 Don't <br> spend any time on it if not.=C2=A0 It would just be nice to se= e if it is <br> reproducible with Qt6 and Philip could test that very easily. <br> <br> =C2=A0=C2=A0=C2=A0 I'll spend a little time beating it up with= some huge compositions I <br> have lying around. <br> <br> Ted. <br> <br> On 1/18/26 5:24 PM, Babarosa wrote: <br> &gt; Please find attached the info. I can reproduce this crash. <br> &gt; <br> &gt; Thank you for helping, Michael <br> &gt; <br> &gt; Am 18.01.26 um 16:43 schrieb Ted Felix: <br> &gt;&gt; Ok. Usually for this kind of thing, running a debug build using ASAN <br> &gt;&gt; will give us a lot more information when it does crash.&nbsp; Or you can <br> &gt;&gt; run a debug build with gdb, which is a little more cumbersome, but <br> &gt;&gt; should get some good crash information for us to work with. <br> &gt;&gt; <br> &gt;&gt; &nbsp; Let me know if you need help setting either of those up.&nbsp; The cmake <br> &gt;&gt; line for ASAN is: <br> &gt;&gt; <br> &gt;&gt; cmake .. -DCMAKE_BUILD_TYPE=3DDebug -DCMAKE_CXX_FLAGS=3D"-Werror - <br> &gt;&gt; fsanitize=3Daddress -fno-omit-frame-pointer" <br> &gt;&gt; <br> &gt;&gt; &nbsp; It's in the README.md. <br> &gt;&gt; <br> &gt;&gt; Ted. <br> </blockquote> </blockquote> <br> </blockquote> <br> <fieldset class=3D"moz-mime-attachment-header"></fieldset> <br> <fieldset class=3D"moz-mime-attachment-header"></fieldset> <pre wrap=3D"" class=3D"moz-quote-pre">_____________________________= __________________ Rosegarden-user mailing list <a class=3D"moz-txt-link-abbreviated" href=3D"mailto:Rosegarden-user@lists= .sourceforge.net">Rosegarden-user-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org</a> - use the link= below to unsubscribe <a class=3D"moz-txt-link-freetext" href=3D"https://lists.sourceforge.net/l= ists/listinfo/rosegarden-user">https://lists.sourceforge.net/lists/listinf= o/rosegarden-user</a> </pre> </blockquote> </body> </html> --------------IXo1IWj0xBYnU8Pun1y0VJWe-- --===============4908539200858415669== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline --===============4908539200858415669== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Rosegarden-user mailing list Rosegarden-user-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org - use the link below to unsubscribe https://lists.sourceforge.net/lists/listinfo/rosegarden-user --===============4908539200858415669==--