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@xxxxxxxxxxxxx wrote:On 7/28/21 8:44 AM, Sam Ravnborg wrote:EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe Hi Dan, On Wed, Jul 28, 2021 at 03:11:08PM +0000, Dan.Sneddon@xxxxxxxxxxxxx wrote:On 7/28/21 7:00 AM, Sam Ravnborg wrote:[You don't often get email from sam@xxxxxxxxxxxx. Learn why this is important at http://aka.ms/LearnAboutSenderIdentification.] EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe 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. Ourgraphics 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.
Best regards Thomas
Sam
-- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Felix Imendörffer
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