Re: [gentoo-user] Madly flickering display
On Friday 23 Sep 2016 10:36:23 J. Roeleveld wrote: > On Friday, September 23, 2016 09:13:00 AM Peter Humphrey wrote: --->8 > > I still get the rapid flickering and general confusion though, which is > > cured by logging out and in again. > > I just tested on my desktop by madly switching desktops for 2 minutes > using the keyboard bindings (CTRL + F1..4) and didn't see this happening. > > * That was the only relevant package to have such a USE flag, according > > to "equery h -p evdev". I can't yet prove it, but I think I know the culprit: BOINC manager. If I don't run it, I get all my desktops running properly, but if I do, the window manager gets confused about which desktop is on display and tries to display bits of several of them, overlapping, missing, showing through, flickering, you name it. The bug persists even if I shut down boincmgr before the problem appears. It may have something to do with focus stealing, because I had to raise the prevention setting one or two notches to be able to switch away from boincmgr's desktop. If it is so, I suppose it's a consequence of coding for Windows with only a single desktop in the entire known universe. -- Rgds Peter
Re: [gentoo-user] Madly flickering display
On Friday 23 Sep 2016 22:30:55 David Haller wrote: > Hello, > > On Fri, 23 Sep 2016, Peter Humphrey wrote: > >I've broken this out from the thread it appeared in, Problems with > >Xinerama I found from Xorg.0.log that X11 wasn't finding an evdev > >module, even though I had INPUT_DEVICES="evdev" in make.conf. So I added > >USE=evdev to dev- qt/qtgui* and that created the module, even though > >kensington@gentoo said it had nothing to do with it. > > Do you have x11-drivers/xf86-input-evdev installed? > > # equery files x11-drivers/xf86-input-evdev |grep '\.so' > /usr/lib64/xorg/modules/input/evdev_drv.so > > That's the 'evdev' module that your X doesn't find. I have now, since adding that USE flag. I'll have to remove it and recompile to complete the check. -- Rgds Peter
Re: [gentoo-user] Madly flickering display
Hello, On Fri, 23 Sep 2016, Peter Humphrey wrote: >I've broken this out from the thread it appeared in, Problems with Xinerama >I found from Xorg.0.log that X11 wasn't finding an evdev module, even though >I had INPUT_DEVICES="evdev" in make.conf. So I added USE=evdev to dev- >qt/qtgui* and that created the module, even though kensington@gentoo said it >had nothing to do with it. Do you have x11-drivers/xf86-input-evdev installed? # equery files x11-drivers/xf86-input-evdev |grep '\.so' /usr/lib64/xorg/modules/input/evdev_drv.so That's the 'evdev' module that your X doesn't find. -dnh -- "I'm nobody's puppet!"-- Rygel XIV
Re: [gentoo-user] Madly flickering display
On Friday 23 Sep 2016 10:36:23 J. Roeleveld wrote: > On Friday, September 23, 2016 09:13:00 AM Peter Humphrey wrote: > > I've broken this out from the thread it appeared in, Problems with > > Xinerama > > after upgrade to Plasma (KDE5): > > > > On Friday 16 Sep 2016 11:18:18 I wrote: > > > > --->8 > > > > > I upgraded yesterday from 5.7.4 to 5.7.5. I hoped the problem I have had > > > been fixed, but no. If I switch desktops too many times, or too often or > > > something, the desktop becomes unusable until I reboot (I haven't tried > > > just restarting xdm). It flickers rapidly, bits of one desktop are shown > > > in the middle of another or on a blank background, and it's hard to see > > > just which is the currently active desktop. > > > > > > This may be a bad interaction with the xorg-driver for my AMD GPU, which > > > has only been on the market for about a year. Though > > > sys-firmware/amdgpu-ucode hasn't changed since June. > > > > I found from Xorg.0.log that X11 wasn't finding an evdev module, even > > though I had INPUT_DEVICES="evdev" in make.conf. So I added USE=evdev to > > dev- qt/qtgui* and that created the module, even though kensington@gentoo > > said it had nothing to do with it. > > I have the following: > $ grep INPUT /etc/portage/make.conf > INPUT_DEVICES="evdev keyboard mouse joystick" Do you need "keyboard mouse joystick" if you have evdev set? -- Regards, Mick signature.asc Description: This is a digitally signed message part.
Re: [gentoo-user] Madly flickering display
On Friday, September 23, 2016 09:13:00 AM Peter Humphrey wrote: > I've broken this out from the thread it appeared in, Problems with Xinerama > after upgrade to Plasma (KDE5): > > On Friday 16 Sep 2016 11:18:18 I wrote: > > --->8 > > > I upgraded yesterday from 5.7.4 to 5.7.5. I hoped the problem I have had > > been fixed, but no. If I switch desktops too many times, or too often or > > something, the desktop becomes unusable until I reboot (I haven't tried > > just restarting xdm). It flickers rapidly, bits of one desktop are shown > > in the middle of another or on a blank background, and it's hard to see > > just which is the currently active desktop. > > > > This may be a bad interaction with the xorg-driver for my AMD GPU, which > > has only been on the market for about a year. Though > > sys-firmware/amdgpu-ucode hasn't changed since June. > > I found from Xorg.0.log that X11 wasn't finding an evdev module, even though > I had INPUT_DEVICES="evdev" in make.conf. So I added USE=evdev to dev- > qt/qtgui* and that created the module, even though kensington@gentoo said > it had nothing to do with it. I have the following: $ grep INPUT /etc/portage/make.conf INPUT_DEVICES="evdev keyboard mouse joystick" My qtgui doesn't have this USE-flag set. According to my X-logs ( /var/log/Xorg.0.log ) it does find the evdev-module. > I still get the rapid flickering and general confusion though, which is > cured by logging out and in again. I just tested on my desktop by madly switching desktops for 2 minutes using the keyboard bindings (CTRL + F1..4) and didn't see this happening. > * That was the only relevant package to have such a USE flag, according to > "equery h -p evdev". Same on my system. (Not counting games-emulation/dolphin :) ) -- Joost
