[Bug 1251281] Re: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting)
** Tags added: cherry-pick -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1251281 Title: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-session/+bug/1251281/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1251281] Re: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting)
Importance Critical as it fits the following criteria: + A bug which has a severe impact on a large portion of Ubuntu users - Anyone using Unity, gnome-shell, gnome3, etc. + Renders the system temporarily or permanently unusable. Not being able to remote in via all the applicable remote access protocols renders Ubuntu largely useless at the workstation level for enterprises (as well as those setting up home LANs), as they cannot provide the expected remote support. + Severely affects applications beyond the package responsible for the root cause. Not being able to remotely connect to Ubuntu would fit this criteria. While one may use Kubuntu, or Xubuntu as a WORKAROUND, this would not help those folks who have to disrupt their environments (re-install/change desktop environments) to obtain this outcome, or who want to retain their 5 year support on an LTS in the case of Xubuntu. As this has been fixed upstream as per attachment https://bugzilla.gnome.org/attachment.cgi?id=290278 , this should at least be given an opportunity to test in the Proposed repository to see if it resolves our issue here in Ubuntu. ** Changed in: gnome-session (Ubuntu) Importance: High = Critical -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1251281 Title: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-session/+bug/1251281/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1251281] Re: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting)
Maxim, that will be unlikely, as the fix is actually a “feature” (it adds new commandline option). But I hope we will have new gnome-session in Vivid, where this will be fixed. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1251281 Title: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-session/+bug/1251281/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1251281] Re: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting)
Hi, Would, please, someone clarify for users whether the fix will be backported to trusty's gnome-session or to any other released ubuntu version? Thank you. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1251281 Title: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-session/+bug/1251281/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
Re: [Bug 1251281] Re: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting)
On Tue, Nov 25, 2014 at 12:32 AM, Dmitry Shachnev mity...@gmail.com wrote: No, I think Compiz won't work without hardware acceleration. So only for Metacity. I just tested compiz 0.8.8.28.fc21 on Fedora 21 and I can confirm that it does require the GLX extension. So I agree that we should only add that option for metacity sessions. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1251281 Title: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-session/+bug/1251281/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1251281] Re: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting)
** Changed in: gnome-session Status: New = Fix Released -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1251281 Title: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-session/+bug/1251281/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1251281] Re: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting)
Patch for gnome-session was accepted. :) Should I add --disable-acceleration-check to metacity session only or this is needed for compiz session too? Will be in 3.16. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1251281 Title: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-session/+bug/1251281/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1251281] Re: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting)
No, I think Compiz won't work without hardware acceleration. So only for Metacity. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1251281 Title: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-session/+bug/1251281/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1251281] Re: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting)
Hi eugenesan mikedep333, Thanks very much for your explanations. Based on them I've done more research and now understand much better. Very interesting! Sorry for the late reply - I've been on holidays. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1251281 Title: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-session/+bug/1251281/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1251281] Re: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting)
Hello, I'm sorry to bother, I know that practically the same question was asked a few months ago by Nicholas DiPiazza, but it wasn't directly answered. - Is there any time frame to fix this problem in the official distribution of Trusty? Similarly to what was said previously - this is the main reason we cannot upgrade to 14.04 from 12.04. It's absolutely critical for us to use remote sessions using NX (or any other method to have remote gnome session that would provide speed as good as NX does). Thank you, Michael. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1251281 Title: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-session/+bug/1251281/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
Re: [Bug 1251281] Re: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting)
On Sat, Sep 27, 2014 at 6:54 PM, Chris Good chris.g...@ozemail.com.au wrote: Would someone please explain what the problem is in simple terms? I thought it was that Unity in Ubuntu 14.04 requires 3D acceleration but if so, why does Unity work when run in VirtualBox without 3D acceleration, and also when run in a VMware VM in a vSphere console? On Fri, Oct 3, 2014 at 1:33 AM, Eugene San eugene...@gmail.com wrote: chris-good: I might be wrong but by 3D acceleration, VM hypervizors usually mean H/W 3D offloading to host GPU. Also usually VM para-virtualized drivers support direct rendering and all most X11 extensions which can be used by Mesa (pure software or LLVM-pipe) to simulate 3D. Regarding Unity, it uses Compiz which also supports Mesa simulated 3D (at least in recent versions). Environments like NX/VNC/RDP and etc, usually lack direct rendering and most X11 extensions therefor 3D simulation is broken. It's sad that this fact is ignored by distributions and desktop environments developers and we are enforced to deal with it here :-( Greetings from an X2Go developer, This isn't a simple explanation, but it is as simple as I could make it without losing important details. On recent Linux distros, llvmpipe can provide software 3D rendering. However, in order for 3D rendering to work with GNOME3 (and with many other 3d programs), you *also* need an X server with good enough support for the GLX extension. The X server needs to support the GLX extension in the 1st place, and it needs to support a new enough version of the GLX extension. The current version of GLX is 1.4. I just checked: Both Ubuntu 12.04 and 14.04 have GLX 1.4 support in their X.org server. X2Go (whose X server is nxagent 3.5.0.x) only supports GLX 1.2, You can verify this by running the glxinfo command under X2Go. GLX 1.2 is not new enough for GNOME3, and thus X2Go is affected by this bug. TightVNC 1.3.9-6.4ubuntu1 (in Ubuntu 14.04) is also affected because it does not support GLX at all. You can verify this by running the glxinfo command under a TightVNC server. TigerVNC 1.3.0 (in Fedora 20) does support GLX 1.4. Therefore, it is not affected; you can run GNOME3 under TigerVNC 1.3.0 (and possibly prior versions.) I just tested this on both a physical Fedora 20 machine with 3D graphics hardware, and on a Fedora 20 VM whose hypervisor does not provide 3D support. When you running Ubuntu 12.04 or 14.4 under the VMware vSphere console, the regular X.org X server is running, and that X server supports GLX 1.4. VMware vSphere (ESXi) can provide 3D hardware acceleration under certain setups, but in the absence of 3D, the guest OS simply uses llvmpipe. In either case, the guest OS thinks the vSphere console is its local display. The composite extension is also a limitation of many X servers. I am not sure if the version needs to be new enough, or if the extension simply needs to be present. -Mike -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1251281 Title: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-session/+bug/1251281/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1251281] Re: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting)
Hi, This almost works for me over vnc but the panel and/or classic gnome launcher and applets are missing, so all I really see is my desktop icons. cat .xsession## gnome-session --session=gnome-flashback --disable-acceleration-check -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1251281 Title: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-session/+bug/1251281/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1251281] Re: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting)
ruediger.kupper: Acceleration check can be skipped by passing --disable-acceleration-check to gnome-session chris-good: I might be wrong but by 3D acceleration, VM hypervizors usually mean H/W 3D offloading to host GPU. Also usually VM para-virtualized drivers support direct rendering and all most X11 extensions which can be used by Mesa (pure software or LLVM-pipe) to simulate 3D. Regarding Unity, it uses Compiz which also supports Mesa simulated 3D (at least in recent versions). Environments like NX/VNC/RDP and etc, usually lack direct rendering and most X11 extensions therefor 3D simulation is broken. It's sad that this fact is ignored by distributions and desktop environments developers and we are enforced to deal with it here :-( -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1251281 Title: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-session/+bug/1251281/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1251281] Re: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting)
Would someone please explain what the problem is in simple terms? I thought it was that Unity in Ubuntu 14.04 requires 3D acceleration but if so, why does Unity work when run in VirtualBox without 3D acceleration, and also when run in a VMware VM in a vSphere console? -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1251281 Title: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-session/+bug/1251281/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1251281] Re: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting)
Eugene: Now acceleration check is skipped automatically for flashback/fallback sessions and still can be disabled explicitly. How would I disable it explicitly? -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1251281 Title: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-session/+bug/1251281/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1251281] Re: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting)
decorations in flashback-compiz session are missing ubuntu styling (probably missing schemes due to gconf-gsettings migration). It is not missing schemes, we need lp:~albertsmuktupavels/compiz/gtk- window-decorator-4 merged into compiz to restore theme support (it was lost during metacity gtk2→gtk3 switch). -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1251281 Title: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-session/+bug/1251281/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1251281] Re: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting)
Fix for compiz is already in proposed. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1251281 Title: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-session/+bug/1251281/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1251281] Re: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting)
Rüdiger Kupper: Recently I've updated gnome-flashback related packages to align with recent changes in Utopic/Sid. Now acceleration check is skipped automatically for flashback/fallback sessions and still can be disabled explicitly. Packages should be fine now, but there is a chance reinstall of the ppa might be needed. P.S. * x2go users should use flashback session instead of default fallback, since fallback session hijacked by upstart and therefor is broken. * decorations in flashback-compiz session are missing ubuntu styling (probably missing schemes due to gconf-gsettings migration). -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1251281 Title: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-session/+bug/1251281/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1251281] Re: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting)
Eugene, I have purged and re-installed your PPA as you suggest in comment #20, but the problem is back: The session does never start, and in ~/.xsession-errors I see: gnome-session-flashback (3.8.0): attempting to launch gnome-session at 2014-09-22T13:14:34+0200 gnome-session-is-accelerated: No hardware 3D support. gnome-session-check-accelerated: Helper exited with code 256 gnome-session-is-accelerated: No hardware 3D support. gnome-session-check-accelerated: Helper exited with code 256 ** (process:12360): WARNING **: software acceleration check failed: Child process exited with code 1 ** (gnome-session:12360): CRITICAL **: We failed, but the fail whale is dead. Sorry Has something changed with your PPA? -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1251281 Title: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-session/+bug/1251281/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1251281] Re: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting)
** Summary changed: - gnome-flashback fails to start without hardware acceleration, cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting) + gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting) -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1251281 Title: gnome-session-flashback fails to start without hardware acceleration in cloud/remote environments (Forwarded-X/XRDP/VNC/NX/X2GO/Chromoting) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-session/+bug/1251281/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
