Hi
Are you also having a noticeably longer delay when logging in after a reboot? For me, first login has a significant delay (since the past few weeks), but unlocking desktop from SDDM screen is fast.
I'm not on NVidia. I'm on Intel.
Syam
On Mon, 18 Feb, 2019, 5:52 AM Robin Laing <MeSat@xxxxxxxxxxxxxxx wrote:
On 09/02/2019 15:13, Robin Laing wrote:
> On 09/02/2019 01:07, Robin Laing wrote:
>> On 06/02/2019 04:58, Reindl Harald wrote:
>>>
>>>
>>> Am 06.02.19 um 06:21 schrieb Robin Laing:
>>>> On one computer, switch user is slow to impossible to use.
>>>>
>>>> sddm seems to cause Xorg to hang and I don't know how to debug it.
>>>>
>>>> I have to ssh in from a different computer and kill all processes to
>>>> get
>>>> into the computer again. Keyboard is useless but mouse pointer moves.
>>>> Caps and numlock keys don't work either.
>>>
>>> maybe it's the memory leak i am suffering for months if not years
>>>
>>> my machine has 32GB RAM and 4x3.5 Ghz which is maybe the reason "ALT+F2
>>> and type "restart-plasma.sh" is no problem while with less memory likely
>>> everything takes ages
>>>
>>> after some hours or intense work switch between applications takes ages
>>> here and when restart plasma eveyrthing becomes smooth again
>>>
>>> [harry@srv-rhsoft:~/downloads]$ cat /scripts/restart-plasma.sh
>>> #!/usr/bin/dash
>>> killall plasmashell
>>> /usr/bin/plasmashell &
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>>
>> I have 32G and a powerful machine as well but if I switch between
>> users, I cannot type anything at all. I will try the alt+F2 and see
>> if that works.
>>
>> I will watch memory and maybe try to restart plasma before trying to
>> switch users.
>>
>> It is time related so a memory leak may be an issue. Once I can
>> switch users, I can switch back and forth almost instantly. Give it
>> time and the time to change gets longer and longer.
>>
>> I have restarted plasma in the past with the same commands as you used.
>>
>> I guess this means it points more to plasmashell than sddm or Xorg.
>>
>> Doing a search on plasmashell memory leak and there are many that have
>> created cron jobs to restart their plasmashell on a regular basis.
>>
>> In my case, that may be a great idea.
>>
>> I just noticed that for KDE5.10 and above they now recommend
>> kquitapp5 plasmashell
>> kstart5 plasmashell
>>
>> I will start to monitor the memory usage with
>> top -b -n 1 |grep plasmashell
>>
>> Maybe create a script to log the data as well.
>>
>> Thanks. I will watch this over the next couple of days.
>>
>> Also testing on a different computer.
>>
>> Robin
>> _
> I was hoping I was on to something from your suggestions. It is not
> plasmashell related. I killed plasmashell before trying to switch users
> and it still took a long time for sddm to display the password prompt.
>
> The first account I restarted, the second account I had to use ALT+F2
> and run kstart plasmashell as I had a blank screen.
>
> I have been reading on how to find memory leaks and will keep looking in
> that direction.
>
> I may look at the kscreenlocker as well as sddm again.
>
> Robin
>
>
>
>
>
>
FWIW, I found that using SysProf, I was able to confirm that it is not
KDE but Xorg and I am suspecting the nVidia kernel driver related to ioctl.
http://www.sysprof.com/
Now to learn how to find what I need to submit a bug report.
Thank you to those that responded.
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