On 2019-09-29 11:12, 'Micah Lee' via qubes-users wrote: > On 2019-09-24 18:21, Michael Siepmann wrote: >> I've read and followed the instructions on >> https://www.qubes-os.org/doc/gui-configuration/ but the problem I'm >> having is different. Here's what happens: >> >> 1. I'm using VMs on a 4K monitor successfully, via DisplayPort. >> >> 2a. I have Dom0 screensaver set to Blank Screen Only and it blanks after >> the configured number of minutes >> >> OR 2b. I switch to using the laptop screen, then back to the 4K monitor >> >> OR 2c. The computer wakes from sleep while the 4K monitor is in power >> saving mode. >> >> 3. I can no longer click the mouse in my VMs (though it seems as if >> maybe all clicks register in a very small area at the top left). The >> mouse works normally in dom0. >> >> 4. If I switch to the laptop internal screen it works fine there, but if >> I switch back to the 4K monitor it still doesn't work there. The only >> way to get mouse clicking working in the VMs again is to shut down the >> VM and restart it while using the 4K monitor. >> >> The same thing happens if the computer goes to sleep and when I wake it >> up the monitor is in power saving mode. My current workaround is to >> disable the screensaver, and remember to wake the monitor before waking >> the computer, >> >> Is this a bug I should report? Has anyone else encountered this behavior? > I've encountered this bug (or a similar one) as well on a 4K monitor. It > appears that the mouse clicks only register if they're within the top > left width and height of the laptop resolution. > > A workaround I've discovered is just restarting your VMs while your 4K > monitor is plugged in. If you start a VM with the monitor plugged in, it > lets you click anyone on the monitor within that VM. Thank you! There is related discussion here <https://github.com/QubesOS/qubes-core-admin/pull/240> and here <https://github.com/QubesOS/qubes-issues/issues/4509> but the problem I've been having is that after starting a VM with the monitor plugged in, it will only continue to work as long as the monitor never goes blank, even from the screen saver, or from switching temporarily to just using the laptop screen, or from going into suspend mode and then waking up before the monitor has been woken from its power saving mode. However, today when I tried to replicate the problem it didn't happen. Hopefully that will continue!
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