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On Thu, Jun 15, 2017 at 09:53:11PM +0200, Zrubi wrote:
> On 06/15/2017 06:34 PM, Reg Tiangha wrote:
> 
> > Curious:  For those apps that exhibit that behavior, are they
> > running on Debian 9 or Fedora 25 templates?
> 
> Nope.
> Fedora 24 mainly, and Debian 8
> The later is only for sys-net, so all my taskbar icons coming from a
> F24 based template.

Make sure you have up to date qubes-gui-agent (qubes-gui-vm). There were
some issues recently affecting integrity of window content affecting
F24 (or F25 - depending on gui-agent version ;) ).

> > Since it works fine in Debian 8 (I haven't tested much with any 
> > Fedoras), I'm wondering if it's less a kernel issue and more of an
> > issue with newer X or how Qubes integrates with newer X (but I
> > guess if it works properly on 4.4, it may be a combination of the
> > three; don't know how to fix it though).
> 
> Maybe it is a know issue, but:
> online netvm change on a disposable VM is also broken on the latest
> 4.9 VM kernel. (Qubes Manager shows it is changed, but not working in
> practice)

Can you provide more details (and even better: create an issue on
github)?

I've just tried and cannot reproduce. I've tried two scenarios:

1. fedora-25-dvm with netvm=sys-firewall, then new DispVM switched to
another netvm (sys-whonix) - it works
2. fedora-25-dvm with netvm=none, then new DispVM switched to
sys-firewall - it works

After changing netvm for fedora-25-dvm you need to regenerate DispVM
savefile.
All of this using 4.9 kernel (some .28, some .31).

> > I can't play around with this until later today, but in the
> > meantime, what graphics hardware are you running, Zrubi? And which
> > version of 4.4 are you running where things work fine? And finally
> > if you can, if it's an Intel card, can you try booting with this
> > kernel option to see if it makes a difference?
> > 
> > i915.preliminary_hw_support=0
> 
> I believe this setting will not affect this chipset. But will try if I
> have a chance. (This is my only Qubes Laptop atm and using it for
> production)
> 
> HW details:
> 
> Intel(R) Core(TM) i5-5300U CPU @ 2.30GHz
> Intel Corporation Broadwell-U Host Bridge -OPI [8086:1604] (rev 09)
> Intel Corporation HD Graphics 5500 [8086:1616] (rev 09) (prog-if 00
> 
> SW versions:
> Qubes 3.2
> xen: 4.6.5
> kernel: 4.4.62-12

I've seen some graphics issues (different than yours) on Broadwell-based
hardware, on 4.9 kernel. Adding iommu=no-igfx to Xen cmdline helped. See
here:
https://github.com/QubesOS/qubes-issues/issues/2836

- -- 
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
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