Your message dated Sun, 23 Apr 2017 11:47:39 +0200
with message-id <20170423094739.lb5yj6dqa7ugt...@betterave.cristau.org>
and subject line Re: Bug#860946: drm problems with vram size / virt-manager
display size at boot
has caused the Debian Bug report #860946,
regarding drm problems with vram size / virt-manager display size at boot
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
860946: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=860946
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems
--- Begin Message ---
Package: libdrm2
Version: 2.4.74-1
Severity: important
This problem was observed on a virtual machine running stretch inside a
KVM environment. The machine had been a fresh install of stretch in
January 2017, updated with apt in the last 24 hours.
Last time I used my VM, I had stretched the virt-manager window to be
quite large. spice-vdagent is running in the VM and the screen size
adapted and it was working fine. My physical display is a 4k monitor.
Next time I booted the VM, the gdm login didn't appear, just a dark gray
background, it appeared to be sized at one of the default resolutions
like 800x600.
I connected to the VM with ssh and found this in journalctl:
test-vm1 kernel: [drm:qxl_crtc_mode_set [qxl]] *ERROR* Mode doesn't fit
in vram size (vgamem)
test-vm1 kernel: [drm:drm_crtc_helper_set_config [drm_kms_helper]]
*ERROR* failed to set mode on [CRTC:27:crtc-0]
I shut down the VM and used "virsh edit test-vm1" to find the vram
setting and increased it from 64M to 256M.
I observed the same problem on the next boot.
Then, while the gray background was visible, I tried reducing the size
of the virt-manager window. As the virt-manager got smaller, the gdm
login box suddenly appeared. After logging in, I was able to expand the
virt-manager window again and it continued working fine.
It would be useful to
a) understand why this happens at boot/login time but it works fine at
this resolution after login
b) improve gdm, wayland or whatever so it shows something more
meaningful than a gray background
--- End Message ---
--- Begin Message ---
On Sat, Apr 22, 2017 at 13:00:08 +0200, Daniel Pocock wrote:
> Package: libdrm2
> Version: 2.4.74-1
> Severity: important
>
> This problem was observed on a virtual machine running stretch inside a
> KVM environment. The machine had been a fresh install of stretch in
> January 2017, updated with apt in the last 24 hours.
>
> Last time I used my VM, I had stretched the virt-manager window to be
> quite large. spice-vdagent is running in the VM and the screen size
> adapted and it was working fine. My physical display is a 4k monitor.
>
> Next time I booted the VM, the gdm login didn't appear, just a dark gray
> background, it appeared to be sized at one of the default resolutions
> like 800x600.
>
> I connected to the VM with ssh and found this in journalctl:
>
> test-vm1 kernel: [drm:qxl_crtc_mode_set [qxl]] *ERROR* Mode doesn't fit
> in vram size (vgamem)
> test-vm1 kernel: [drm:drm_crtc_helper_set_config [drm_kms_helper]]
> *ERROR* failed to set mode on [CRTC:27:crtc-0]
>
This isn't a bug in libdrm2. It's a driver issue, either on the kernel
or userspace side.
Cheers,
Julien
--- End Message ---
