Update: UltraVNC 1.4.3.6 and UltraVNC SC 1.4.3.6: viewtopic.php?t=37885
Important: Please update to latest version before to create a reply, a topic or an issue: viewtopic.php?t=37864
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Important: Please update to latest version before to create a reply, a topic or an issue: viewtopic.php?t=37864
Join us on social networks and share our announcements:
- Website: https://uvnc.com/
- GitHub: https://github.com/ultravnc
- Mastodon: https://mastodon.social/@ultravnc
- Facebook: https://www.facebook.com/ultravnc1
- X/Twitter: https://twitter.com/ultravnc1
- Reddit community: https://www.reddit.com/r/ultravnc
- OpenHub: https://openhub.net/p/ultravnc
UltraVNC 1.2.1.0 - Todo list
- Rudi De Vos
- Admin & Developer
- Posts: 6838
- Joined: 2004-04-23 10:21
- Contact:
UltraVNC 1.2.1.0 - Todo list
Just added to keep track of what need to be verified.
I'm having a problem with freezing. When the host performs an action that demands a lot of CPU time (like opening or closing an application), the viewer freezes and does not recover unless minimised&restored or with the Request Screen Refresh command. No amount of waiting will make the viewer recover on its own.
Exactly:
•Viewer stops updating
•Host CPU fan briefly spins up (often, but not always)
•Host still receives input from viewer connection - even after several minutes of the viewer being frozen. If I'm looking at the host monitor, I can still interact with the mouse, for example.
My versions are 1.2.1.0 (downloaded 31 Jan 2016). My previous versions were 1.2.0.5. Both host and viewer are running Windows 7 64-bit and are connected by an ethernet cable. The earlier version did not have this problem.
Changing the following settings does not fix the problem:
•(viewer) Reconnection attempts
•(viewer) Timeout
•(host) mirror driver
•(host) SChook
•(host) multiple connections
•(host) RDPmode
**Viewer scale has a problem.....
UltraVNC v.1.2.1.0
Connection Options -> Viewer Scale now defaults to checked (new behavior), when unchecked UltraVNC will cause a windows GPF.
UltraVNC 1.9.0
Connection Options -> Viewer Scale can be checked and unchecked and behaves properly.
**SC update
+detect new servers OS's
+sha2 cert needed
**screen rotation win10
**ipv6 support
I'm having a problem with freezing. When the host performs an action that demands a lot of CPU time (like opening or closing an application), the viewer freezes and does not recover unless minimised&restored or with the Request Screen Refresh command. No amount of waiting will make the viewer recover on its own.
Exactly:
•Viewer stops updating
•Host CPU fan briefly spins up (often, but not always)
•Host still receives input from viewer connection - even after several minutes of the viewer being frozen. If I'm looking at the host monitor, I can still interact with the mouse, for example.
My versions are 1.2.1.0 (downloaded 31 Jan 2016). My previous versions were 1.2.0.5. Both host and viewer are running Windows 7 64-bit and are connected by an ethernet cable. The earlier version did not have this problem.
Changing the following settings does not fix the problem:
•(viewer) Reconnection attempts
•(viewer) Timeout
•(host) mirror driver
•(host) SChook
•(host) multiple connections
•(host) RDPmode
**Viewer scale has a problem.....
UltraVNC v.1.2.1.0
Connection Options -> Viewer Scale now defaults to checked (new behavior), when unchecked UltraVNC will cause a windows GPF.
UltraVNC 1.9.0
Connection Options -> Viewer Scale can be checked and unchecked and behaves properly.
**SC update
+detect new servers OS's
+sha2 cert needed
**screen rotation win10
**ipv6 support
-
- 8
- Posts: 17
- Joined: 2012-10-17 17:47
Re: TODO list
I checked my event viewer log after a freeze event and saw this:
Unfortunately, I do not know if this event was logged just before or just after the viewer froze.
If unchecking "Remove Aero" fixes this problem, I will post here again.
Interestingly, I had the mirror driver installed, but it was not until later did I see 9011
2840 was winvnc.exeEvent ID 9010
A request to disable the Desktop Window Manager was made by process (2840)
Event ID 9013
The Desktop Window Manager was unable to start because composition was disabled by a running application
Unfortunately, I do not know if this event was logged just before or just after the viewer froze.
If unchecking "Remove Aero" fixes this problem, I will post here again.
Interestingly, I had the mirror driver installed, but it was not until later did I see 9011
Event ID 9011
The Desktop Window Manager was unable to start because a mirroring driver is in use
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- 8
- Posts: 17
- Joined: 2012-10-17 17:47
Re: TODO list
Manually disabling the Desktop compositing didn't help.
It's probably happening whenever the host starts something resource intensive, but it's just not possible to reproduce at will.
It's probably happening whenever the host starts something resource intensive, but it's just not possible to reproduce at will.
- Rudi De Vos
- Admin & Developer
- Posts: 6838
- Joined: 2004-04-23 10:21
- Contact:
Re: TODO list
Aero/DWM has a performance monitor.
As soon as an application, in this case vnc start using to high cpu/gpu DWM auto disable AERO and switch to basic mode.
VNC need to capture video memory and copy it to system memory several times a second... this has a big impact on slow
video cards.
Do you realy need the aero stuff, all the special graphical effects have a huge impact on vnc.
If you select the standard theme ( non aero) you system don't have the fancy effects and look like XP, but
vnc handle it 2 to 3 faster the aero.
A mirror driver don't function with aero and place the video in basic mode on start.
Try with a non aero theme, this prevent that the mode change while vnc is working.
As soon as an application, in this case vnc start using to high cpu/gpu DWM auto disable AERO and switch to basic mode.
VNC need to capture video memory and copy it to system memory several times a second... this has a big impact on slow
video cards.
Do you realy need the aero stuff, all the special graphical effects have a huge impact on vnc.
If you select the standard theme ( non aero) you system don't have the fancy effects and look like XP, but
vnc handle it 2 to 3 faster the aero.
A mirror driver don't function with aero and place the video in basic mode on start.
Try with a non aero theme, this prevent that the mode change while vnc is working.
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- 8
- Posts: 17
- Joined: 2012-10-17 17:47
Re: TODO list
What I'd like to know is why can't the viewer recover the connection after the host has a momentary CPU spike, since earlier versions didn't have this problem? (It could be a change in Windows or uVNC.)
Is there any way I can get a log file from the viewer?
Is there any way I can get a log file from the viewer?
- Rudi De Vos
- Admin & Developer
- Posts: 6838
- Joined: 2004-04-23 10:21
- Contact:
Re: TODO list
If would know what caused it insite the server or viewer, i would have fixed it.
I can't repeat it on one of me servers.
First we need to know if it is a serve or viewer issue.
Did you upgraded the server or viewer ?
I can't repeat it on one of me servers.
First we need to know if it is a serve or viewer issue.
Did you upgraded the server or viewer ?
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- 8
- Posts: 17
- Joined: 2012-10-17 17:47
Re: TODO list
I've got the About windows open in the screenshot below.
![Image](https://dl.dropboxusercontent.com/u/12865946/bugs/vnc_1210_about.png)
Edit: I downloaded and installed it again but the viewer build date stays the same.
![Image](https://dl.dropboxusercontent.com/u/12865946/bugs/vnc_1210_about.png)
- Viewer: 1.2.1.0 19/1/2016
- Server: 1.2.1.0 24/1/2016
Edit: I downloaded and installed it again but the viewer build date stays the same.
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- 8
- Posts: 17
- Joined: 2012-10-17 17:47
Re: TODO list
I tried turning off all windows display options. It seemed to take longer for the problem to occur the first time, but it still eventually happened within two hours. I was doing a drag-fill in Excel at the time.
![Image](https://dl.dropboxusercontent.com/u/12865946/bugs/windows_best_performance.png)
![Image](https://dl.dropboxusercontent.com/u/12865946/bugs/windows_best_performance.png)
- Rudi De Vos
- Admin & Developer
- Posts: 6838
- Joined: 2004-04-23 10:21
- Contact:
Re: TODO list
Did you try using a non aero theme instead of setting best performance.
Vista without aero run as fast as xp for vnc.
Vista without aero run as fast as xp for vnc.
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- 8
- Posts: 17
- Joined: 2012-10-17 17:47
Re: TODO list
Edit: never mind, this is still happening.
[s]Good news!
I may have narrowed this down.
Today I did not enable SCROLL-LOCK for sending Ctrl/Alt/Shift/Windows keys through, and the problem hasn't appeared yet.
I will now test the newest version 1.2.1.1 to see if it still has this problem.[/s]
[s]Good news!
I may have narrowed this down.
Today I did not enable SCROLL-LOCK for sending Ctrl/Alt/Shift/Windows keys through, and the problem hasn't appeared yet.
I will now test the newest version 1.2.1.1 to see if it still has this problem.[/s]
Last edited by OSXFeatureRequest on 2016-03-16 09:41, edited 2 times in total.
- Rudi De Vos
- Admin & Developer
- Posts: 6838
- Joined: 2004-04-23 10:21
- Contact:
-
- 8
- Posts: 17
- Joined: 2012-10-17 17:47
Re: TODO list
I found where the non-aero themes are and I the host to Windows Classic. The problem still occurs, and this time there's nothing of interest in the windows Event Viewer of either system to indicate the cause.Rudi De Vos wrote:Did you try using a non aero theme instead of setting best performance.
Vista without aero run as fast as xp for vnc.