Re: XFCE freezing with LightDM?
Thank you for giving me some things to check.
I installed and ran Memtest86+ with no errors.
I had been asking on the Debian User Forums. I guess I should try the Debian User list. I've been using Debian 20+ years without such a persistent issue.
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On Monday, March 24th, 2025 at 11:56 AM, Kirkham, George <debian-xfce-user@goproject.info> wrote:
> W. Pepperdine,
>
> Debian User list might be the best place for raising your issue. I tried to find your post in Debian User but was not able to, which might be why people did not respond.
>
> If it helps, I use XFCE on Debian bookwork myself without any issues (and have a number of PCs running KDE too). I really like XFCE. I do not have the issues you mention. Maybe this can give you hope that Debian XFCE should work well.
>
> I would assume that if you run the below command from a terminal as root, it will display an Intel GPU is being used?
> # lspci -k | grep -A 2 -E '(3D|VGA)'
>
> While not particularly powerful I have found the Intel GPUs that are within i5 and i7 processors to work effectively and are well supported in Linux thanks to Intel's video driver.
>
> If you are doing a standard Debian Bookworm installation, then sadly I suspect that your M920q has a hardware fault. I am only guessing but maybe memory? Maybe CPU.
>
> After looking up the M920q I assume it does not have a slot for adding a Video Card, but relies on the internal GPU of the CPU. Not that this should cause an issue. I have used the Internal GPU on Intel CPUs before, and for XFCE/LightDM too.
>
> I find this command useful for checking the display manager.
> $ env | grep -E -i 'x11|xorg|wayland|plasma'
>
> You could try Gnome or KDE instead of XFCE, but I doubt they will work any better.
>
> Maybe you can test memory by installing Memtest86+ and rebooting to select and run Memtest86+. I cannot recall clearly, but I think I had issues being able to do this due to UEFI?
>
> Maybe the free version from memtest86's web site will work? Install it to a bootable USB memory drive.
> https://www.memtest86.com/
>
> I do no think my comments help that much, I hope you find a solution.
>
> George
>
>
> https://www.lenovo.com/au/en/p/desktops/thinkcentre/m-series-tiny/thinkcentre-m920q/11tc1mtm92q
> Sorry, ThinkCentre M920 Tiny - 9th Gen Intel is no longer available.
>
> https://www.servethehome.com/lenovo-thinkcentre-m920-and-m920q-tiny-guide-and-review/
>
> For our $475, we received a node with an Intel Core i5-9600T CPU, a 16GB SODIMM for RAM, and a 256GB NVMe SSD.
>
> https://www.intel.com/content/www/us/en/products/sku/191051/intel-core-i59600t-processor-9m-cache-up-to-3-90-ghz/specifications.html
>
> Processor Number i5-9600T
> GPU Name Intel® UHD Graphics 630
>
>
> On Monday, 24-03-2025 at 13:21 W. Pepperdine wrote:
>
> > It is a new Lenovo ThinkCentre M90q Tiny. I first installed Trixie, had this and other problems, so reinstalled with Bookworm. Just the freezing problem now. Asked about this on the Debian User Forum but no solution.
> >
> > On Sunday, March 23rd, 2025 at 6:34 PM, Kirkham, George debian-xfce-user@goproject.info wrote:
> >
> > > Hi,
> > >
> > > I have had similar issues when the motherboard and/or video card was faulty.
> > >
> > > What video device does your computer have? AMD, Nvidia, Intel ? And what model?
> > >
> > > Is the device a desktop or a laptop? Are you able to try a different video card?
> > >
> > > Are you installing Debian Bookworm, or Trixie, or something else?
> > >
> > > George.
> > >
> > > On Monday, 24-03-2025 at 11:46 W. Pepperdine wrote:
> > >
> > > > My fresh install of Debian XFCE freezes around the login screen about half the time. I think the problem may be with lightdm.
> > > >
> > > > On a freeze, the screen is not updated, mouse and keyboard actions are not registered, and there seems to be no activity at the USB ports. The only thing to do is force shutdown with the power button.
> > > >
> > > > The freeze happens either just before, during, or just after the login screen. I have not been able to reliably cause the freeze. The xession-errors file and the systemctl output don't seem to capture the event.
> > > > What can I do to confirm if lightdm is the problem, and what to do if it is?
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