AM335 beaglebone black VSYNC issue with SDK 4.10

Manuel Odendahl

Hi,

I am using a beaglebone black with kernel 3.8 and SDK 4.10 (as it supports our display and most other features of the bone black). However, I get vertical tearing. When I switch from FRONTWSEGL to FLIPWSEGL in powervr.ini, I get the following error (this is a QT application, but it also happens for the OGLES demos, for example ShadowMan):

QML debugging is enabled. Only use this in a safe environment.
EGLFS: Unable to query physical screen size, defaulting to 100 dpi.
EGLFS: To override, set QT_QPA_EGLFS_PHYSICAL_WIDTH and
QT_QPA_EGLFS_PHYSICAL_HEIGHT (in millimeters).
EGL Error : Could not create the egl surface: error = 0x3001

Any idea what could be causing this? Is this a known issue with 4.10? Or is it an issue with my display?

Regards, Manuel

over 11 years ago

0 Biser Gatchev-XID over 11 years ago

TI__Guru**** 393215 points

Beaglebone Black and kernel 3.8 are supported by the community at: http://beagleboard.org/Community/Forums

0 Manuel Odendahl over 11 years ago in reply to Biser Gatchev-XID

Prodigy 50 points

Hi Biser,

thanks for the answer. The reason I think this may be more TI SDK related is that this seems to be exactly the same issue that I run into:

http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/716/t/192800.aspx

Do you know if it's the interplay SDK <-> 3.8 specifically that makes it impossible to create a vsynced surface? Because all the rest runs which makes me think that the kernel modules are actually doing their job fine.

Regards, Manuel

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AM335 beaglebone black VSYNC issue with SDK 4.10