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Duncan posted on Mon, 25 Apr 2011 03:34:38 +0000 as excerpted: |
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> I'll do a followup with the netbook's glxinfo if I remember, but the |
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> above should give you some pointers to investigate, meanwhile. |
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OK, on the netbook... |
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lspc reports Intel 945GME |
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The xorg log (Xorg.0.log) first reports "Driver for Intel Integrated |
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Graphics Chipsets: i810", THEN reports the Intel driver detecting chipset |
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945GME (as lspci listed), BUT THEN the Intel driver DRI2 driver is |
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reported as the i915. |
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Talking about the xorg log... check it too. If you're running hardware |
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OpenGL, it'll report something like this (FWIW, xorg-server 1.10.1): |
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LoadModule: "dri" |
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Loading /usr/lib/xorg/modules/extensions/libdri.so |
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Module dri: vendor="X.Org Foundation" |
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compiled for 1.10.1, module version = 1.0.0 |
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ABI class: X.org Server Extension, version 5.0 |
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Loading extension XFree86-DRI |
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LoadModule: "dri2" |
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Loading /usr/lib/xorg/modules/extensions/libdri2.so |
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Module dri2: vendor="X.Org Foundation" |
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compiled for 1.10.1, module version = 1.2.0 |
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ABI class: X.Org Server Extension, version 5.0 |
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Loading extension DRI2 |
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Then later... |
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drmOpenDevice: node name is /dev/dri/card0 |
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... followed by open result 8, (OK), another open, drmOpenMinor, busID, |
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etc. |
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Then later |
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intel(0): [DRI2] Setup complete |
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intel(0): [DRI2] DRI driver: i915 |
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later... |
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intel(0): direct rendering: DRI2 Enabled |
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later... |
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GLX: Initialized DRI2 GL provider for screen 0 |
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If instead it's saying DRI disabled, or doesn't mention it, you're |
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software-fallback rendered, for sure, as it's straight from the log. |
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FWIW, here's those lines as mentioned up-thread from the netbooks glxinfo: |
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OpenGL vendor string: Tungsten Graphics, Inc |
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OpenGL renderer string: Mesa DRI Intel(R) 945GME x86/MMX/SSE2 |
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Kernel config: |
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Here I do a custom config, building everything I need directly into the |
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kernel, so I can disable module loading. It's easier that way as I don't |
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have to ensure that the modules subdirs stay in sync with the kernel. |
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For graphics, you'll want and/or I have: |
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DRM/DRI (CONFIG_DRM) |
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Intel 8xx/9xx/63x/64x/HD Graphics (CONFIG_DRM_I915) |
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I have modesetting on by default (CONFIG_DRM_I915_KMS) |
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Support for frame buffer devices (CONFIG_FB) |
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Inside that option: |
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Enable Video Mode Handling Helpers (CONFIG_FB_MODE_HELPERS) |
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(may not be necessary but can help with EDID detection and doesn't hurt) |
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Enable Tile Blitting Support (CONFIG_FB_TILEBLITTING) |
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**DO**NOT** enable the Intel framebuffer device options here as they |
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interfere with KMS. |
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Back out under graphics again, go into Console display driver support: |
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Framebuffer Console support (CONFIG_FRAMEBUFFER_CONSOLE) |
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You want that for KMS. |
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It's recommended to enable VGA text console (CONFIG_VGA_CONSOLE) as well, |
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for a fallback in case the kms drivers fail for some reason, or if you |
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wish to use UMS. (In the removable graphics card case, VGA text console |
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is also a backup in case you switch to a different card, but as Intel |
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graphics are normally integrated, it's not like that's a real option. But |
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it's still worthwhile in case there's a problem with the KMS framebuffer |
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or for trying UMS.) |
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Back out at the main graphics menu again, I have VGA Arbitration off as |
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it's only useful with multiple graphics cards, lowlevel video output |
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switch controls is on to support the key that controls that on my netbook, |
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and backlight and LCD device support is enabled, with both lowlevel LCD |
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and backlight controls enabled inside, but no specific drivers, as that's |
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what my hardware takes. |
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More interesting is the /dev/agpgart (AGP Support) option, with the Intel |
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chipset option checked inside it. My system's PCIE, so I'm not sure |
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that's actually necessary, but it's enabled and X including OpenGL works. |
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Maybe I'll experiment with it at some point, but that point isn't now. |
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And if you do still have AGP, and the BIOS has the fastwrite option, make |
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sure it's off. While it works on some systems, it's unsupported and the |
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xorg folks consider it unsupportable, because it's so crazy-buggy on so |
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many systems. Similarly, any fast-write options you might have in your |
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xorg.conf. Ensure they're off. |
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FWIW, on the netbook the only bit of xorg.conf config I have here is the |
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synaptics touchpad config file located in /etc/X11/xorg.conf.d/ . The |
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rest of the X config is entirely internal xorg defaults and auto- |
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detection. (The main system is a bit more complex as it has dual |
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monitors, and an xorg config that sets orientation, etc. But it too is |
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way smaller than it used to be.) |
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-- |
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Duncan - List replies preferred. No HTML msgs. |
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"Every nonfree program has a lord, a master -- |
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and if you use the program, he is your master." Richard Stallman |
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