And... seems I spoke to soon about DPMS working ;) - but at least it does now work sometimes.
There's now a new, intermittent DSI related failure going on that I think is unrelated to the last problem:
[ 53.141659] panel-btl507212-w677l 58004000.encoder.0: w677l_disable [ 53.451626] DSI: omapdss DSI error: DSI error, irqstatus 4000 [ 53.460384] panel-btl507212-w677l 58004000.encoder.0: w677l_unprepare [ 53.468136] panel-btl507212-w677l 58004000.encoder.0: power_off() [ 53.486342] panel-btl507212-w677l 58004000.encoder.0: w677l_reset(active) [ 53.503567] panel-btl507212-w677l 58004000.encoder.0: w677l_regulator(off) [ 53.531918] panel-btl507212-w677l 58004000.encoder.0: w677l_unprepare finished [ 53.541620] panel-btl507212-w677l 58004000.encoder.0: w677l_prepare [ 53.549286] panel-btl507212-w677l 58004000.encoder.0: power_on() [ 53.555619] panel-btl507212-w677l 58004000.encoder.0: w677l_reset(active) [ 53.563112] panel-btl507212-w677l 58004000.encoder.0: w677l_regulator(on) [ 53.636501] panel-btl507212-w677l 58004000.encoder.0: w677l_reset(inactive) [ 53.666897] panel-btl507212-w677l 58004000.encoder.0: dsi: w677l_write(dcs 11) [0] [ 53.684628] DSI: omapdss DSI error: Error while sending BTA: 4000 [ 53.691461] DSI: omapdss DSI error: bta sync failed [ 53.697731] panel-btl507212-w677l 58004000.encoder.0: write cmd/reg(11) failed: -5 [ 53.708303] panel-btl507212-w677l 58004000.encoder.0: sequence failed: 0 [ 53.732510] panel-btl507212-w677l 58004000.encoder.0: w677l_enable [ 53.739193] panel-btl507212-w677l 58004000.encoder.0: w677l_enable() powered on()
it's possible that the panel is being disabled at the wrong point and messing up the DSI state.
On Mon, 2020-12-21 at 18:40 +0000, David Shah wrote:
It was just another pyra_defconfig problem in the end, sent a patch.
And the DPMS issue now seems to be resolved :)
Next problem I've noticed is that pvr init is failing, I think I saw some conversation between you and Tony about that back in November that I'll look into.
Best
David
On Mon, 2020-12-21 at 19:32 +0100, H. Nikolaus Schaller wrote:
Am 21.12.2020 um 19:21 schrieb David Shah dave@ds0.me:
Trying letux-5.10.y and the annoying display-not-being-loaded issue has come back to bite again, even though we are now baking omapdrm into the kernel in the Pyra config.
Strangely I haven't seen that recently. And it is questionable if it is solved by the new panel driver architecture.
But you could do a test by merging letux/boe-w677-dsi-panel-v4. This should include the new omapdrm and the new panel driver.
If not someone has to dig into it and search for the initialization race.
BR, Nikolaus
On Mon, 2020-12-21 at 18:14 +0100, H. Nikolaus Schaller wrote:
Am 21.12.2020 um 18:00 schrieb David Shah dave@ds0.me:
It would be nice to get 5.10 up and running on the Pyra,
Well, for me it is running and I am not aware of bigger issues. But I am not using it daily so that I may miss some problems.
despite not containing the new panel driver yet (afaik).
Yes, the new panel driver will not come before v5.12. But IMHO it has no functional difference. Is just much cleaner and upstreamable code. So no need to wait for it.
Though I haven't tested, I suspect the biggest issue is going to be the DPMS/stuck atomic update issue that is somewhere in the display/DRM code discussed previously and has likely been present since 5.7 ish.
I think there was some fix a while ago which may also be in 5.9. But I currently don't have the Pyra in operation to check.
Generally I think the best strategy for PyraOS would be to use and maintain 5.10.y as the next long-term kernel.
BR, Nikolaus
David
On Mon, 2020-12-21 at 16:12 +0100, H. Nikolaus Schaller wrote:
v5.9.16 was just tagged [EOL].
According to https://www.kernel.org/category/releases.html%C2%A0the long-term kernels will be:
- 5.10
- 5.4
- 4.19
- 4.14
- 4.9
- 4.4 (maintenance ends in 2 months - but we anyways have
no letux-4.4)
For Letux-Kernels we will follow this scheme.
BR, Nikolaus
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