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I've broken this out from the thread it appeared in, Problems with Xinerama |
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after upgrade to Plasma (KDE5): |
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|
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On Friday 16 Sep 2016 11:18:18 I wrote: |
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--->8 |
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> I upgraded yesterday from 5.7.4 to 5.7.5. I hoped the problem I have had |
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> been fixed, but no. If I switch desktops too many times, or too often or |
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> something, the desktop becomes unusable until I reboot (I haven't tried |
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> just restarting xdm). It flickers rapidly, bits of one desktop are shown |
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> in the middle of another or on a blank background, and it's hard to see |
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> just which is the currently active desktop. |
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> |
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> This may be a bad interaction with the xorg-driver for my AMD GPU, which |
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> has only been on the market for about a year. Though |
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> sys-firmware/amdgpu-ucode hasn't changed since June. |
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I found from Xorg.0.log that X11 wasn't finding an evdev module, even though |
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I had INPUT_DEVICES="evdev" in make.conf. So I added USE=evdev to dev- |
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qt/qtgui* and that created the module, even though kensington@gentoo said it |
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had nothing to do with it. |
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I still get the rapid flickering and general confusion though, which is |
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cured by logging out and in again. |
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|
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* That was the only relevant package to have such a USE flag, according to |
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"equery h -p evdev". |
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-- |
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Rgds |
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Peter |
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