DRIconf for 12.04

Question

I'm having problems on 3d acceleration on Ubuntu 12.04 that I hadn't have before on 11.10. I've an Intel HD graphics, what can I do??

I've downloaded DRIconf, I used it on 11.10 and it worked great.

But now not sure why it's a bit buggy. Does anyone know a good configuration for DRI? Im getting also this error, [ 7.649228] intel ips 0000:00:1f.6: failed to get i915 symbols

But just for half a second on boot.

Answer 1

failed to get i915 symbols

Sounds like a kernel option that needs to be set.You can try if setting the modeset is the fix for this from within grub before making it permanent:

• hold down shift when the grub booting screen is showing
• Press e (for edit)
• add i915.modeset=1 to the end of the line (it probably currently ends with splash)
• press control-x to boot

If this works you can set it permanently from command line with ...

gksudo gedit /etc/default/grub
GRUB_CMDLINE_LINUX="i915.modeset=1"
sudo update-grub