Bug 501688
| Summary: | unfreeze display for newer OLPC BIOSes | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Christoph Wickert <christoph.wickert> | ||||
| Component: | liveusb-creator | Assignee: | kushaldas@gmail.com <mail> | ||||
| Status: | CLOSED RAWHIDE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | low | ||||||
| Version: | rawhide | CC: | lmacken, mail | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | All | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | 3.6.5-3.fc12 | Doc Type: | Bug Fix | ||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2009-05-20 11:05:44 UTC | Type: | --- | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Bug Depends On: | |||||||
| Bug Blocks: | 461806 | ||||||
| Attachments: |
|
||||||
Please forgive me for abusing my proven packager privileges, I committed the patch myself and fired up http://koji.fedoraproject.org/koji/taskinfo?taskID=1365660 You think it's worth pushing this also to F-10 and -11? |
Created attachment 344777 [details] Add "dcon-unfreeze" to default olpc.fth Description of problem: In Q2E30 the default behavior of OFW has changed and pretty boot has become the default. This means that one cannot see plymouth, rhgb or any other boot messages. There is no feedback on the boot progress because Fedora cannot show the XO's boot animation. Not even X gets shown once the XO stopped booting, one has to STRG+ALT+ERASE in order to see it. Version-Release number of selected component (if applicable): liveusb-creator-3.6.5-2.fc11.noarch.rpm Additional info: Quote from Mitch Bradley: You need to add the word "dcon-unfreeze" to olpc.fth . You could add it after the existing "unfreeze", e.g. unfreeze dcon-unfreeze or it could be on a separate line; either will work. What this does is to turn off "pretty boot". The way that pretty boot works is that, just prior to loading the OS, OFW "freezes" the screen by invoking the DCON chip's "hold the last display frame, ignoring new information" function. In older OFW versions, pretty boot was used only when security was enabled, thus only for signed OLPC OS images, but as of Q2E30 we bowed to pressure from a few vocal proponents of pretty-boot-everywhere and made it the default. I knew that, as a result, I was going to have to deal with problems like yours forever afterward, and that has turned out to be the case :-(. I tried to explain the "unfreeze dcon-unfreeze" magic to the people I knew who were making alternate distributions, but it has proven impossible to get the message through to all of them. The distinction between "unfreeze" and "dcon-unfreeze" is that "dcon-unfreeze" unfreezes the display right now, whereas "unfreeze" prevents the last-second "jump to the loaded OS" code from refreezing at that later instant. (Last-instant refreeze is what used to happen, letting you see the "boot:" messages, but that wasn't pretty enough for some people, so I had to institute "early freeze" to eliminate all text unless olpc.fth does the "dcon-unfreeze" thing too.