Re: Regression DRM/i915/KMS: VGA connector unusable after 2.6.31-rc8-git1, DVI connector ok by Linus Torvalds on 2009-09-09T14:28:46+00:00
On Wed, 9 Sep 2009, Knut Petersen wrote:
>
> As the old X does not work with the new kernel, I cannot decide if the
> kernel or X is to blame.
Hmm. Doesn't old X work if you disable KMS? Either with "i915.modeset=0"
or by just compiling it out?
Also, glxgears is usually not a good way to verify anything. At least some
versions used to run the gears at the painting frame rate rather than some
fixed rate, and so "jerky" or not depended not on how fast it was
painting, but on whether the painting speed was some multiple of the
screen refresh.
The FPS output from glxgears should mean something, although quite
frankly, considering the simplicity of the thing, not a whole lot. I'd
suggest using some somewhat more real test (I admit to having used
"Extreme Tux Racer", which while not wonderful either is certainly better
than glxgears ;^)
Linus
PS: 可以到extremetuxracer.com 下载，
想玩的话，直接打开应用程序->游戏->Extreme Tux Racer 就可以了，我刚试了一把，还不错，不过画面的感觉还是没有win下面好，我现在的内核版本是 kernel 2.6.30 Intel 845G的集成显卡，搜到这个也是因为升级到kernel 2.6.31遇到问题，现在还没有解决，等解决了，就在这里记录下来。
现在已经成功将kernel升级到2.6.31了，不过这里需要安装并升级xorg-edgers intel driver
然后再执行升级kernel的那三个deb文件
sudo gedit /etc/apt/sources.list
Add in these two lines:
deb jaunty main #xorg-edgers PPA
deb-src jaunty main #xorg-edgers PPA
Save it, and at the command line:
sudo apt-get update //这里需要执行下面的命令以接受证书:
gpg --keyserver subkeys.pgp.net --recv 4F191A5A8844C542
gpg --export --armor 4F191A5A8844C542 | sudo apt-key add -
(4F191A5A8844C542为直接执行sudo apt-get update时报错里面提到的key)
Now run a regular Ubuntu update.(即更新管理器)
这样就可以了，然后直接执行2.6.31的三个包，重启电脑即可(我在重启后需要等一点时间才能进入系统)
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