On 2014-10-13 10:23 AM, Basil Mohamed Gohar wrote:
> I've searched for bugs related to the specific problems I've been having, and > I've not been able to find anything that describes what I'm seeing. > > I have an HP EliteBook 840 that also comes with an UltraDock, to which I've > plugged-in two external monitors and I use in conjunction with the built-in > laptop display. > > Issue #1: I use LUKS to encrypt my disk, and when I first start up the > computer, after choosing the kernel to boot into in GRUB, the GUI prompt for > the LUKS passphrase shows-up on the middle monitor, not the laptop's built-in > display. I don't mind this when I have multiple monitors plugged-in, but when > I boot-up without the external monitors, such as when I'm unplugged from the > UltraDock, I now get NO GUI prompt for the LUKS passphrase. I can enter it, > and I can see a text prompt if I hit ESC. I suspect its attempting to display > on the now phantom, unplugged monitor. Note, it was never plugged-in during > this cycle. The problem is, I don't even know what's instructing LUKS or the > GUI prompt to display on any monitor, so I don't know where to go to debug > this. > > Issue #2: When I undock my laptop while logged-in, Gnome Shell just crashes. > When I redock after the laptop has been started when unconnected, one of the > two external monitors start-up (the one connected by VGA), but not the one > connected by a DisplayPort connection. And, recently (but not when I first > started using this laptop with the dock, which was about a month ago), now > when I start-up with the laptop docked and both external monitors connected, > both external monitors will be active, but the built-in display will show > nothing. Gnome Shell reports the built-in display is active, but will not > display anything unless I deactivate it and reactivate it via the settings > "Displays" utility. > > Issue #3: The monitor connected via DisplayPort display significant tearing > and delay on the upper-right half of the screen in the form of a triangle > taking-up half of the screen. Reading about displayport and tearing issues, I > guess the idea that these were resolved in the past. I don't know if this is > the same or something different. > > I don't mean to use devel as a bug reporting venue, but I think these issues > are either related or I just don't know how to address them to make > significant progress to fixing them. Any guidance is more than welcome. > Thanks! > > -- > Libre Video > http://librevideo.org So, a recent update which included a kernel update fixed issue #2, and I was really happy. Then, another update this week, which included multiple systemd updates, restored/rebroke issue #2 above (the docking/undocking) issue. -- Libre Video http://librevideo.org
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