On 2019-09-30 05:44, David Hobach wrote: > On 9/29/19 7:12 PM, '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. > > You can also try to switch to a tty (e.g. Alt+Ctl+F2), wait a few > seconds and then go back (Alt+Ctl+F1). Works for me whenever I have > issues with external monitors. > Thank you! I will try that next time it happens. When I tried to replicate the problem just now, it didn't happen.
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