Re: [Desktop12.04-Topic] Working VNC (or no VNC)
Le mercredi 05 octobre 2011 à 12:41 -0700, Bryce Harrington a écrit : But I think as a next action, I think I have all the hardware I need to test it myself, so I'll try and do that today or tomorrow. I would hate to spin up a bunch of people to do testing if there really are obvious breakages... Thanks Bryce! Testing that feature regularly in the feature seems a good idea indeed (was supposed to be in the futur) Is this something the QA could / would be willing to do? Seb, do you know if vino has a way to automatedly turn it on config it ala dbus or something? The enable option is a gsettings key so gsettings set org.gnome.Vino enabled true should do it Cheers, Sebastien Bacher -- ubuntu-desktop mailing list ubuntu-desktop@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-desktop
Re: [Desktop12.04-Topic] Working VNC (or no VNC)
Hi Alberto, Can you escalate bug #772873 with AMD in your next call? The bug has to do with the use of XDamage in a remote X context using VNC with compositing enabled. Nvidia fixed this in their driver in version 256.25, and it works fine with all the open drivers, but fglrx seems to still be affected. I know there's not time to resolve this for the oneiric release, but perhaps once it's fixed we could include it fixed driver in x-updates. I've added the issue to the Oneiric release notes as well. https://wiki.ubuntu.com/OneiricOcelot/TechnicalOverview Thanks, Bryce On Thu, Oct 06, 2011 at 05:17:56PM -0700, Bryce Harrington wrote: On Thu, Oct 06, 2011 at 06:46:10PM +0200, Sebastien Bacher wrote: Le mercredi 05 octobre 2011 à 12:41 -0700, Bryce Harrington a écrit : But I think as a next action, I think I have all the hardware I need to test it myself, so I'll try and do that today or tomorrow. I would hate to spin up a bunch of people to do testing if there really are obvious breakages... Thanks Bryce! Ok, here's what I've learned. I can confirm the bug that on fglrx you can connect and get an initial display of the desktop, but it never updates. I tested this on oneiric. I was unable to test the workaround of enabling xdamage in vino, because that option appears to have been removed from gconf in oneiric. On -nvidia, using the old nvidia-173 driver on natty, I also reproduced the bug. On the same system I switched to the nvidia-current driver (still on natty), and it worked with no bug. So, this all seems to confirm my hypothesis. The issue existed for both nvidia and fglrx, but NVIDIA fixed it (presumably as of version 256.25 - http://www.nvnews.net/vbulletin/showthread.php?p=2255561). Older alternative nvidia drivers may still experience the bug, but not current nvidia. I tested -ati, -intel, and -nouveau on both natty and oneiric, and it worked in all cases I tried. So, my conclusion is that this seems to confirm the issue is a bug in fglrx and should be escalated to AMD for resolution. Even if AMD is able to fix this swiftly, there isn't going to be time to roll out a new fglrx driver, and since binary drivers can't be SRU'd, we won't be able to fix this bug. We should list it in the Release Notes, escalate to AMD, get it fixed in Precise and in x-updates. As to putting out a call for testing, I'll leave that to your discretion but don't think it's necessary. Can't hurt, but I strongly suspect it's merely going to just confirm that it's broken only on fglrx and older nvidia. Bryce -- ubuntu-desktop mailing list ubuntu-desktop@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-desktop -- ubuntu-desktop mailing list ubuntu-desktop@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-desktop
Re: [Desktop12.04-Topic] Working VNC (or no VNC)
Le mardi 04 octobre 2011 à 14:00 -0700, Bryce Harrington a écrit : Pitti had mentioned a couple months ago that this is an -fglrx specific issue, which well could me; if that can be confirmed, we could just have Alberto add it to the AMD bug escalation list for 12.04. What do you think? In fact https://bugs.launchpad.net/bugs/353126 would have been a better bug to point, comments in both bugs list users having the issue on nvidia, ati and intel. There is not a lot of intel users comment so maybe those are another issue or bogus and it might be that the nvidia issue is fixed. In any case it would be nice to at least do a call for testing on Oneiric to see where we stand and if it's driver specific. If the issue is fglrx specific then escalating to amd seems a good idea indeed Cheers, Sebastien Bacher -- ubuntu-desktop mailing list ubuntu-desktop@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-desktop
Re: [Desktop12.04-Topic] Working VNC (or no VNC)
On Wed, 2011-10-05 at 11:13 +0200, Sebastien Bacher wrote: Le mardi 04 octobre 2011 à 14:00 -0700, Bryce Harrington a écrit : Pitti had mentioned a couple months ago that this is an -fglrx specific issue, which well could me; if that can be confirmed, we could just have Alberto add it to the AMD bug escalation list for 12.04. What do you think? In fact https://bugs.launchpad.net/bugs/353126 would have been a better bug to point, comments in both bugs list users having the issue on nvidia, ati and intel. There is not a lot of intel users comment so maybe those are another issue or bogus and it might be that the nvidia issue is fixed. In any case it would be nice to at least do a call for testing on Oneiric to see where we stand and if it's driver specific. If the issue is fglrx specific then escalating to amd seems a good idea indeed FYI, On Natty, I experienced the issue on my Intel laptop, but not on my Nvidia laptop. I've added the xdamage workaround before upgrading to Oneiric, so I don't know if it's fixed or not. I use the remote desktop functionality both when I'm not at home, and for tech support to my family, so if it gets removed, it would be nice to have an alternative take it's place... Marc. -- ubuntu-desktop mailing list ubuntu-desktop@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-desktop
Re: [Desktop12.04-Topic] Working VNC (or no VNC)
Le mercredi 05 octobre 2011 à 11:17 -0700, Bryce Harrington a écrit : It looks to me like it basically works, modulo maybe a bug or two. So removing it seems unnecessary; just need to isolate and prioritize those bugs. I'm not convinced about that, the bug has a count of 325 users having the issue (which is quite high compared to most desktop bugs we get) and it's a point that comes often on user forums as something being broken in Ubuntu, I would like to get extra datas ... maybe we should do a call for testing on it during the Oneiric rc testing? Testing that feature regularly in the feature seems a good idea indeed -- Sebastien Bacher -- ubuntu-desktop mailing list ubuntu-desktop@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-desktop
[Desktop12.04-Topic] Working VNC (or no VNC)
Hi, That's a small topic but seems vino and compositing (i.e unity) don't work really fine together: https://bugs.launchpad.net/ubuntu/+source/vino/+bug/772873 Not sure if that's a driver issue, xorg, vino, other but the issue is not new and doesn't reflect nicely on Ubuntu, I think we should be honest about it and either care enough to make it work in most cases or drop vino from the default installation. Cheers, Sebastien Bacher -- ubuntu-desktop mailing list ubuntu-desktop@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-desktop
Re: [Desktop12.04-Topic] Working VNC (or no VNC)
On Tue, Oct 04, 2011 at 08:40:43PM +0200, Sebastien Bacher wrote: Hi, That's a small topic but seems vino and compositing (i.e unity) don't work really fine together: https://bugs.launchpad.net/ubuntu/+source/vino/+bug/772873 Not sure if that's a driver issue, xorg, vino, other but the issue is not new and doesn't reflect nicely on Ubuntu, I think we should be honest about it and either care enough to make it work in most cases or drop vino from the default installation. Interesting history of problems, but it appears to work in general, at least for me: http://people.canonical.com/~bryce/Photos/vnc_unity.jpg That is with two Intel graphics machines running natty, both running unity (also tested unity+metacity and metacity+metacity) with one vnc'd to another over a wireless network. With unity on, display updates seem rather slow but it's still basically usable. Googling around, I found that at one point NVIDIA had to put out a fix (http://www.nvnews.net/vbulletin/showthread.php?p=2255561). Pitti had mentioned a couple months ago that this is an -fglrx specific issue, which well could me; if that can be confirmed, we could just have Alberto add it to the AMD bug escalation list for 12.04. What do you think? Bryce -- ubuntu-desktop mailing list ubuntu-desktop@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-desktop
