intel865板载的显卡如何打开direct rendering?

jiyongguang

我用的i915的驱动，就是内核自带的！但是glx怎么弄啊？

gamedragon

I'm using i845G with shared 8M video memory. It seems impossible to enable DRI.

1. (II) I810(0): 6392 kBytes additional video memory is required to
2.         enable tiling mode for DRI.
3. (II) I810(0): 4344 kBytes additional video memory is required to enable DRI.
4. (II) I810(0): Disabling DRI.

复制代码

gamedragon

The log is changed since I modified the xorg.conf

1. (II) I810(0): [drm] DRM interface version 1.2
2. (II) I810(0): [drm] created "i915" driver at busid "pci:0000:00:02.0"
3. (II) I810(0): [drm] added 8192 byte SAREA at 0xe0103000
4. (II) I810(0): [drm] mapped SAREA 0xe0103000 to 0xb792f000
5. (II) I810(0): [drm] framebuffer handle = 0xe0020000
6. (II) I810(0): [drm] added 1 reserved context for kernel
7. (WW) I810(0): i830 Kernel module detected, Use the i915 Kernel module instead, aborting DRI init.
8. (II) I810(0): [drm] removed 1 reserved context for kernel
9. (II) I810(0): [drm] unmapping 8192 bytes of SAREA 0xe0103000 at 0xb792f000
10. ......
11. (II) I810(0): direct rendering: Failed

复制代码

jiyongguang

那不是就不能用3ddesktop了？

gamedragon

I've just updated kernel to 2.6.15. Using DRM in kernel, DRI issue is solved. The gears of glxgear rotate so smoothly.

1. name of display: :0.0
   
2. display: :0  screen: 0
   
3. direct rendering: Yes
   
4. server glx vendor string: SGI
   
5. server glx version string: 1.2

复制代码

BUT I found another issue. Although the DRI is enabled, the mouse cursor moves not smoothly. If I don't move cursor for sometime, it is always stuck as its first moving, and then it goes normal. I don't know why.

jiyongguang

打开dri选项是哪个？

gamedragon

升级kernel之后上述鼠标问题解决。

tell

如果你用xorg 6.8以上，需要在kernel配置中选中i830和i915才能打开drm.

http://www.linuxsir.cn/bbs/showthread.php?t=235991

jiyongguang

终于搞定rendering了，哈哈！glxgear有所上升。呵呵