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83b385061c
Simple-framebuffer devices driven by simpledrm lack information like panel-rotation info and physical size, causing the splash to briefly render on its side / without HiDPI scaling, switching to the correct rendering when the native driver loads. To avoid this treat simpledrm devices as fbdev devices and only use them after the timeout. Also adds 2 exceptions to this: 1. If nomodeset is passed on the kernel commandline then no native drivers will load, so in this case it is best to immediately use SimpleDRM devices when they are detected. 2. On some devics the firmware leave the panel black at boot. In this case it is desirable to show the splash to the user ASAP so that there is some visual feedback that the device is booting. Add a support for a "plymouth.use-simpledrm" kernel cmdline option to show the splash immediately on SimpleDRM devices rather then waiting for the native driver to load. Closes #167 Signed-off-by: Hans de Goede <hdegoede@redhat.com> |
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plymouth - graphical boot animation and logger Plymouth is an application that runs very early in the boot process (even before the root filesystem is mounted!) that provides a graphical boot animation while the boot process happens in the background. It is designed to work on systems with DRM modesetting drivers. The idea is that early on in the boot process the native mode for the computer is set, plymouth uses that mode, and that mode stays throughout the entire boot process up to and after X starts. Ideally, the goal is to get rid of all flicker during startup. For systems that don't have DRM mode settings drivers, plymouth falls back to text mode (it can also use a legacy /dev/fb interface). In either text or graphics mode, the boot messages are completely occluded. After the root file system is mounted read-write, the messages are dumped to /var/log/boot.log. Also, the user can see the messages at any time during boot up by hitting the escape key. Plymouth isn't really designed to be built from source by end users. For it to work correctly, it needs integration with the distribution. Because it starts so early, it needs to be packed into the distribution's initial ram disk, and the distribution needs to poke plymouth to tell it how boot is progressing. plymouth ships with two binaries: /sbin/plymouthd and /bin/plymouth The first one, plymouthd, does all the heavy lifting. It logs the session and shows the splash screen. The second one, /bin/plymouth, is the control interface to plymouthd. It supports things like plymouth show-splash, or plymouth ask-for-password, which trigger the associated action in plymouthd. Plymouth supports various "splash" themes which are analogous to screensavers, but happen at boot time. There are several sample themes shipped with plymouth, but most distributions that use plymouth ship something customized for their distribution. Plymouth isn't done yet. It's still under active development, but is used in several popular distros already, including Fedora, Mandriva, Ubuntu and others. See the distributions page for more information. As with other projects hosted on freedesktop.org, Plymouth follows its Code of Conduct, based on the Contributor Covenant. Please conduct yourself in a respectful and civilized manner when using the above mailing lists, bug trackers, etc: https://www.freedesktop.org/wiki/CodeOfConduct