Running The OMAPDRM On Ubuntu 12.04 LTS
Besides Ubuntu 12.04 on ARMv7 being much faster, thanks to hard-float and other improvements, the Texas Instruments OMAP DRM driver is also available to provide a KMS experience for some hardware.
The Texas Instruments OMAP DRM driver has been available since last year as a DRM/KMS driver for Texas Instruments' OMAP platform. The OMAPDRM driver doesn't provide any graphics acceleration support, but does implement GEM memory management and supports HDMI, DVI, and LCD panels. The display hardware is programmed via the DSS2 driver similar to the other OMAP kernel display drivers (V4L2 and fbdev).
Texas Instruments can't provide any open-source 3D acceleration support for OMAP since they're using a PowerVR SGX core, which as most Phoronix readers know is a big bloody mess that's tied up by Imagination Technologies. The OMAPDRM driver has made it into the mainline kernel as a simple DRM driver for the OMAP display hardware, similar to the Samsung Exynos DRM driver.
With the driver now in the mainline Linux kernel, with Ubuntu 12.04 LTS on the Linux 3.2 kernel is the first Ubuntu release where this OMAPDRM driver is available. If you're booting Ubuntu ARM on supported OMAP hardware, this DRM driver is now brought up by default. This particular testing was done from a PandaBoard ES that's using the Texas Instruments OMAP4460 SoC.
OMAPDRM benchmarks on OpenBenchmarking.org with GTK, X11, and Cairo tests.
An Open-Source Graphics Driver For Snapdragon.
PowerVR Linux support remains a big mess with no signs of corrections coming soon, besides Intel at least dropping PowerVR in future products: Intel Valley View: Atom SoC With Ivy Bridge Graphics. While PowerVR SGX is especially common in ARM SoCs, Linux consumers should try to avoid this crap at all possible costs. But in terms of the OMAPDRM driver for Ubuntu 12.04, at least the display hardware on the OMAP4 is working fine.
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