Hi Thomas,
On 7/28/21 11:17 AM, Thomas Zimmermann wrote:
Hi
Am 28.07.21 um 20:11 schrieb Sam Ravnborg:
Hi Dan,
thanks for the quick feedback!
On Wed, Jul 28, 2021 at 05:50:34PM +0000, Dan.Sneddon@microchip.com wrote:
On 7/28/21 8:44 AM, Sam Ravnborg wrote:
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Hi Dan,
On Wed, Jul 28, 2021 at 03:11:08PM +0000, Dan.Sneddon@microchip.com wrote:
On 7/28/21 7:00 AM, Sam Ravnborg wrote:
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Hi Dan,
I hope you can fine to test this patch from Thomas. If this works then we can forget about my attempt to do the same.
I'll test this as soon as I can and let you know.
Thanks, crossing my fingers... (which explains the funny spelling from time to time)
Sam So I ran the test on an A5D27 XULT board with a PDA5 display. Our
graphics demos that come with our linux4sam releases seem to run just fine. modetest -v seems to run just fine. However, vbltest returns "drmWaitVBlank (relative) failed ret: -1". I don't understand why modetest -v is working and vbltest isn't, but that's what I'm seeing.
Thanks for testing.
Strange indeed.
Just to be sure... Can you confirm that vbltest is working OK *before* this patch?
Yes, can you please verify that it regressed. If so, this would mean that the driver misses vblank interrupts with the patch applied.
Yes, unfortunately the vbltest works before this patch, but fails after this patch is applied.
Best Regards, Dan
Best regards Thomas
Sam