Skip to main content

VNC服务器在开启compiz时不工作　| VNC server won't work with compiz

症状是VNC远程连接后，画面显示一帧就不再刷新了
（但是鼠标键盘在本机好像是有响应的）

以前讨论过这个问题
http://coolwanglu.blogspot.com/2011/01/compizfglrxvnc-problem-of-vnc-server.html

今天再次遇到了，只是现在我的电脑是ATI的卡
vino不太好用，用x11vnc的时候出现消息

29/04/2012 21:14:17 XDAMAGE is not working well... misses: 166/216
29/04/2012 21:14:17 Maybe an OpenGL app like Beryl or Compiz is the problem?
29/04/2012 21:14:17 Use x11vnc -noxdamage or disable the Beryl/Compiz app.
29/04/2012 21:14:17 To disable this check and warning specify -xdamage twice.

用 x11vnc -noxdamage -once -display :0 可以正常使用，但是由于不是增量显示的，网络压力会很大

在
https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/772873
看到一个 workaround
是说在ATI Catalyst Control Center (Administrative)里打开 tear free 这个选项

我试了一下，果然管用。
以后不用-noxdamage也能正常使用了

另外-once这个选项太好用了

 The symptom is after a successful vnc connection, the window stopped refreshing after the first frame.
(But the keyboard and mouse seems to be responded on the remote machine)

I've discussed about the problem before:
http://coolwanglu.blogspot.com/2011/01/compizfglrxvnc-problem-of-vnc-server.html

Today I encountered this problem again when I tried to connect to my machine, but now I'm using an ATI graphics card.
vino server is not quite handy, so I used x11vnc, and I saw some useful logs: 


29/04/2012 21:14:17 XDAMAGE is not working well... misses: 166/216
29/04/2012 21:14:17 Maybe an OpenGL app like Beryl or Compiz is the problem?
29/04/2012 21:14:17 Use x11vnc -noxdamage or disable the Beryl/Compiz app.
29/04/2012 21:14:17 To disable this check and warning specify -xdamage twice.

I can access my machine with 'x11vnc -noxdamage -once -display :0' without any problem, but now the screen is no longer updated incrementally, so it would hammer the network.

Then I found a workaround at:
https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/772873

It says to enable the 'tear free' option in the ATI Catalyst Control Center (Administrative)

I tried, and it really worked!
Then it still works without the '-noxdamage' option

BTW, I really like the '-once' option.



Labels:

Comments

Post a Comment

Popular posts from this blog

Exploring Immutable Distros and Declarative Management

My current server setup, based on Debian Stable and Docker, has served me reliably for years. It's stable, familiar, and gets the job done. However, an intriguing article I revisited recently about Fedora CoreOS, rpm-ostree, and OSTree native containers sparked my curiosity and sent me down a rabbit hole exploring alternative approaches to system management. Could there be a better way? Core Goals & Requirements Before diving into new technologies, I wanted to define what "better" means for my use case: The base operating system must update automatically and reliably. Hosted services (applications) should be updatable either automatically or manually, depending on the service. Configuration and data files need to be easy to modify, and crucially, automatically tracked and backed up. Current Setup: Debian Stable + Docker My current infrastructure consists of several servers, all running Debian Stable. System Updates are andled automatically via unattended-upgrades. Se...
Post a Comment
Read More »

A Rocky Migration: Moving from docker-compose to Podman and gVisor

I've been running a few containers for several years. They were all running under rootless Docker with a single user. Initially, I planned to  migrate the containers to VMs , but I couldn't get a stable workflow after about two months of effort. Later,  gVisor caught my attention , and I decided to migrate to Podman with gVisor instead. The new plan is to run each container with  --userns=auto  and use Quadlet for systemd integration. This approach provides better isolation and makes writing firewall rules easier. I'm now close to migrating all my containers. Here are a couple of rough edges I'd like to share. Network Layout I compared  various networking options  and spent a few hours trying the one-interface-per-group approach before giving up. I settled on a single macvlan network and decided to use static IP addresses for my containers. To prevent a randomly assigned IP address from conflicting with a predefined one, I allocated a large IP range for my ...
Post a Comment
Read More »

Determine Perspective Lines With Off-page Vanishing Point

In perspective drawing, a vanishing point represents a group of parallel lines, in other words, a direction. For any point on the paper, if we want a line towards the same direction (in the 3d space), we simply draw a line through it and the vanishing point. But sometimes the vanishing point is too far away, such that it is outside the paper/canvas. In this example, we have a point P and two perspective lines L1 and L2. The vanishing point VP is naturally the intersection of L1 and L2. The task is to draw a line through P and VP, without having VP on the paper. I am aware of a few traditional solutions: 1. Use extra pieces of paper such that we can extend L1 and L2 until we see VP. 2. Draw everything in a smaller scale, such that we can see both P and VP on the paper. Draw the line and scale everything back. 3. Draw a perspective grid using the Brewer Method. #1 and #2 might be quite practical. #3 may not guarantee a solution, unless we can measure distances/p...
3 comments
Read More »