Since upgrading from Mint 13 to 17 (in place, defying recommendations to reinstall from scratch—I just didn't want to redo all my customisations), Cinnamon has been starting in Software Rendering Mode. This seems to be chewing up a lot of CPU that I'd rather use for other things, and of course, I want wobbly windows to work properly too. I've read a lot of posts about Software Rendering Mode, but they all have some detail that varies from my situation, and it's not clear to me what I'm looking for.
A possibly important fact is that my MDM display manager fails on boot , and I get around this by running it with -recover. I've tried a few things to get it to start more gracefully, but it's something I can live with... unless it's the root cause of this Software Rendering Mode. Could these issues be related? (The only other issue I have is sound not working, but that's less important to me at the moment.)
My hardware is a Lenovo T430s laptop.
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$ inxi -xxx -G
Graphics: Card: Intel 3rd Gen Core processor Graphics Controller
bus-ID: 00:02.0 chip-ID: 8086:0166
Display Server: X.Org 1.15.1 drivers: intel (unloaded: fbdev,vesa)
Resolution: 1600x900@60.0hz
GLX Renderer: Gallium 0.4 on llvmpipe (LLVM 3.4, 256 bits)
GLX Version: 2.1 Mesa 10.1.3 Direct Rendering: Yes
There are no errors or failures in /var/log/Xorg.0.log, and the only warnings are a few about missing fonts, and these:
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[ 115.385] Initializing built-in extension DRI2
[ 115.385] (WW) "glamoregl" will not be loaded unless you've specified it to be loaded elsewhere.
[ 115.385] (II) "glx" will be loaded by default.
[ 115.385] (WW) "xmir" is not to be loaded by default. Skipping.
[ 115.385] (II) LoadModule: "glx"
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[ 115.405] (++) using VT number 8
[ 115.413] (II) intel(0): SNA compiled: xserver-xorg-video-intel 2:2.99.910-0u
buntu1.1 (Maarten Lankhorst <maarten.lankhorst@ubuntu.com>)
[ 115.414] (WW) Falling back to old probe method for modesetting
[ 115.414] (WW) Falling back to old probe method for fbdev
[ 115.414] (II) Loading sub module "fbdevhw"
[ 115.414] (II) LoadModule: "fbdevhw"
[ 115.414] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
[ 115.415] (II) Module fbdevhw: vendor="X.Org Foundation"
[ 115.415] compiled for 1.15.1, module version = 0.0.2
[ 115.415] ABI class: X.Org Video Driver, version 15.0
[ 115.415] (WW) Falling back to old probe method for vesa
[ 115.416] (--) intel(0): Integrated Graphics Chipset: Intel(R) HD Graphics 4000
[ 115.416] (--) intel(0): CPU: x86-64, sse2, sse3, ssse3, sse4.1, sse4.2, avx
Thanks,
MikZ.