Openmoko Bug #1841: white screen of death (WSOD) after resume
Openmoko Public Trac
bugs at docs.openmoko.org
Tue Dec 2 09:49:40 CET 2008
#1841: white screen of death (WSOD) after resume
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Reporter: Rorschach | Owner: openmoko-devel
Type: defect | Status: new
Priority: highest | Milestone:
Component: unknown | Version: GTA02v5
Severity: critical | Keywords: wsod,resume
Haspatch: 0 | Blockedby:
Estimated: | Patchreview:
Blocking: | Reproducible: always
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Comment(by andy):
Replying to [comment:81 nicolas.dufresne]:
> Andy: I've try the reset switch but it won't clear the white screen. I
can see the kernel output telling me it did something. I've also try to
manually switch the driver state, but again it did not clear the WSOD.
Maybe we have to reset everything on the SPI ?
What makes it puzzling is I can confirm the GPIO from Glamo that form the
bitbang SPI bus are operational at this time, and the reset /sys thing
performs a hard reset and the same steps used at boot to re-init the LCM
asic... and we NEVER see WSOD at boot (the brief one until recently
doesn't count, it's the backlight coming up before the LCM asic gets
initialized).
> Note that I've produce the bug without suspend (just blanking) and I'm
running latest andy-tracking kernel (2.6.28-GTA02_andy-
tracking_b6d34d41617a6315-mokodev)
I'm currently imagining that the reports of WSOD on resume are actually
some form of the blanking WSOD happening immediately afterwards, dreamlike
as that may sound with no evidence.
--
Ticket URL: <https://docs.openmoko.org/trac/ticket/1841#comment:82>
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