Re: [gentoo-user] [Sort of solved] Recommended pseudo-hardware for QEMU guest machine?

[wabenbau]

waltd...@waltdnes.org wrote:

> On Tue, Dec 22, 2015 at 05:43:17AM +0100, waben...@gmail.com wrote
> 
> > Have you installed x11-drivers/xf86-video-modesetting on the guest?
> 
>   Cannot be done on my machines.  On 2 physical machines, and on the
> Gentoo guest, I get...

You don't have to install it on the physical machines but only on the
guests.
 
> > emerge -pv xf86-video-modesetting
> > 
> > These are the packages that would be merged, in order:
> > 
> > Calculating dependencies... done!
> > [ebuild  N ] x11-drivers/xf86-video-modesetting-0.9.0::gentoo
> > 298 KiB [blocks B  ] x11-drivers/xf86-video-modesetting
> > ("x11-drivers/xf86-video-modesetting" is blocking
> > x11-base/xorg-server-1.17.4)
> > 
> > Total: 1 package (1 new), Size of downloads: 298 KiB
> > Conflict: 1 block (1 unsatisfied)
> > 
> >  * Error: The above package list contains packages which cannot be
> >  * installed at the same time on the same system.
> 
>   On the guest, I unmerged xorg-server and tried emerging
> xf86-video-modesetting.  The result was that it would've pulled in
> xorg-server, which would again have blocked xf86-video-modesetting.
> Wierd.

That's indeed strange. As I said, I have no experiences with gentoo
as guest OS.

Maybe it will help to recompile xorg-server without the xorg USE flag
on the guest machine. When you can connect via ssh then you can revert
it easily when it fails.

And use emerge --backtrack=999 :-)
 
> > Have you compiled the guest kernel with CONFIG_DRM_CIRRUS_QEMU?
> > 
> > If yes, then I guess that you don't need xf86-video-cirrus at all.
> > 
> > > With "-vga
> > > std" X doesn't start up at all.
> > 
> > You probably need to compile the guest kernel with CONFIG_DRM_BOCHS
> > for "-vga std".
> >  
> > >   Any suggestions for improvement?
> > 
> > There is also a kernel option for a KMS enabled DRM driver for the 
> > VMware SVGA virtual hardware (CONFIG_DRM_VMWGFX). I think that the 
> > performance of this driver is better than the performance of the
> > cirrus driver.
> 
>   As I mentioned earlier vmware, cirrus, and bochs all ticked off in
> "make menuconfig".  Now that I have something working, I think I'll

These options are depending on CONFIG_HAS_IOMEM, CONFIG_DRM and 
CONFIG_PCI. You must activate all of these options too.

> make a copy of the 10-gig guest disk image before any further
> tweaking that might render it inoperative again.

Backups are always a good idea.
 
> >   I think that you also need x11-drivers/xf86-video-vmware installed
> > on the guest if you want to use "-vga vmware".
> 
>   I've tried that earlier, when things weren't working.  Maybe it'll
> work this time.

Good luck.

--
Regards
wabe

Re: [gentoo-user] [Sort of solved] Recommended pseudo-hardware for QEMU guest machine?

[waltdnes]

On Tue, Dec 22, 2015 at 08:59:47PM +0100, waben...@gmail.com wrote
> waltd...@waltdnes.org wrote:
> 
> These options are depending on CONFIG_HAS_IOMEM, CONFIG_DRM and 
> CONFIG_PCI. You must activate all of these options too.

  All set in the guest kernel.

> > >   I think that you also need x11-drivers/xf86-video-vmware installed
> > > on the guest if you want to use "-vga vmware".
> > 
> >   I've tried that earlier, when things weren't working.  Maybe it'll
> > work this time.
> 
> Good luck.

  "-vga vmware" started off OK in the text console today, but two major
problems...

1) No mouse or text cursor once I fired up X.  A Google search indicates
that no-cursor-in-graphics-mode is a common problem with Vmware across
all platforms.  The QEMU "-show-cursor" option did not help.  Otherwise X
looked OK, and xrandr listed some ridiculously high resolutions, higher
than my 1920x1080 monitor.

2) The mouse still worked, despite being invisible.  I was able to
blindly execute the mouse-click sequence to bring up the menu that
included logoff.  Once I returned to the text console, it was all red.
Again, the keyboard still worked, and I was able to blindly shut down
the guest.

  For now I'll stick with "-vga cirrus" or "-vga std".  Looking at the
Xorg logs, I noticed that in "-vga std" X was looking for the "fbdev"
module, not finding it, and giving up.  I emerged xf86-video-fbdev and X
now works in "-vga std", although xrandr reports only 1024x768 is
available.  I intend to use it in linux mostly for distcc, so limited X
Window size options aren't a problem.

  I didn't get much linux computing done today.  I picked up a cheap
external USB floppy drive at Canada Computers and transferred Galactic
Civilizations v2.5 for OS/2 from my ancient relic 450 mhz Pentium 3 (128
megs of RAM) to my QEMU machine.  The P3 has a built-in floppy drive; my
other computers don't.  The next challenge is to get OS/2 Warp 4 running
in QEMU as per http://sites.mpc.com.br/ric/qemu/

-- 
Walter Dnes 
I don't run "desktop environments"; I run useful applications

[gentoo-user] [Sort of solved] Recommended pseudo-hardware for QEMU guest machine?

[waltdnes]

On Mon, Dec 21, 2015 at 06:26:18PM +0100, waben...@gmail.com wrote

  My Google search turned up
https://forums.gentoo.org/viewtopic-p-7456850.html which suggested
VIDEO_CARDS="cirrus modesetting vesa", emerging world, and setting and
running CIRRUS in the guest.  I did that.  With "-vga cirrus" I get a
framebuffer X display in the Gentoo guest, which looks half-decent.
xrandr reports...

Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096
VGA-0 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 
0mm
   1024x768  60.00*+
   1280x1024 60.02  
   1280x960  60.00  
   1280x800  59.8159.91  
   1280x768  59.8759.99  
   800x600   60.3256.25  
   848x480   60.00  
   640x480   59.94


  There is no documentation for "video_cards_modesetting" or
"modesetting" flags.  I filed bug report...

https://bugs.gentoo.org/show_bug.cgi?id=569082

...asking for it to be documented.  "emerge -pv xorg-drivers" doesn't
show it, and there's nothing in /usr/portage/profiles/*.desc

  File-attached is the X log.  It complains about not finding the cirrus
driver.  But when I emerged xf86-video-cirrus, the log complained that
the cirrus driver couldn't be loaded because it conflicted with a
"kernel module" (actually built in).  With "-vga std" X doesn't start up
at all.

  Any suggestions for improvement?

-- 
Walter Dnes 
I don't run "desktop environments"; I run useful applications


log.txt.gz
Description: Binary data

Re: [gentoo-user] [Sort of solved] Recommended pseudo-hardware for QEMU guest machine?

[wabenbau]

waltd...@waltdnes.org wrote:

> On Mon, Dec 21, 2015 at 06:26:18PM +0100, waben...@gmail.com wrote
> 
>   My Google search turned up
> https://forums.gentoo.org/viewtopic-p-7456850.html which suggested
> VIDEO_CARDS="cirrus modesetting vesa", emerging world, and setting and
> running CIRRUS in the guest.  I did that.  With "-vga cirrus" I get a
> framebuffer X display in the Gentoo guest, which looks half-decent.
> xrandr reports...
> 
> Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096
> VGA-0 connected 1024x768+0+0 (normal left inverted right x axis y
> axis) 0mm x 0mm 1024x768  60.00*+
>1280x1024 60.02  
>1280x960  60.00  
>1280x800  59.8159.91  
>1280x768  59.8759.99  
>800x600   60.3256.25  
>848x480   60.00  
>640x480   59.94
> 
> 
>   There is no documentation for "video_cards_modesetting" or
> "modesetting" flags.  I filed bug report...
> 
> https://bugs.gentoo.org/show_bug.cgi?id=569082
> 
> ...asking for it to be documented.  "emerge -pv xorg-drivers" doesn't
> show it, and there's nothing in /usr/portage/profiles/*.desc
>   File-attached is the X log.  It complains about not finding the
> cirrus driver.  But when I emerged xf86-video-cirrus, the log
> complained that the cirrus driver couldn't be loaded because it
> conflicted with a "kernel module" (actually built in). 

Have you installed x11-drivers/xf86-video-modesetting on the guest?

Have you compiled the guest kernel with CONFIG_DRM_CIRRUS_QEMU?

If yes, then I guess that you don't need xf86-video-cirrus at all.

> With "-vga
> std" X doesn't start up at all.

You probably need to compile the guest kernel with CONFIG_DRM_BOCHS
for "-vga std".
 
>   Any suggestions for improvement?

There is also a kernel option for a KMS enabled DRM driver for the 
VMware SVGA virtual hardware (CONFIG_DRM_VMWGFX). I think that the 
performance of this driver is better than the performance of the
cirrus driver.

--
Regards
wabe

Re: [gentoo-user] [Sort of solved] Recommended pseudo-hardware for QEMU guest machine?

[wabenbau]

 wrote:

> There is also a kernel option for a KMS enabled DRM driver for the 
> VMware SVGA virtual hardware (CONFIG_DRM_VMWGFX). I think that the 
> performance of this driver is better than the performance of the
> cirrus driver.

I think that you also need x11-drivers/xf86-video-vmware installed
on the guest if you want to use "-vga vmware".

--
Regards
wabe

Re: [gentoo-user] [Sort of solved] Recommended pseudo-hardware for QEMU guest machine?

[waltdnes]

On Tue, Dec 22, 2015 at 05:43:17AM +0100, waben...@gmail.com wrote

> Have you installed x11-drivers/xf86-video-modesetting on the guest?

  Cannot be done on my machines.  On 2 physical machines, and on the
Gentoo guest, I get...

> emerge -pv xf86-video-modesetting
> 
> These are the packages that would be merged, in order:
> 
> Calculating dependencies... done!
> [ebuild  N ] x11-drivers/xf86-video-modesetting-0.9.0::gentoo  298 KiB
> [blocks B  ] x11-drivers/xf86-video-modesetting
> ("x11-drivers/xf86-video-modesetting" is blocking x11-base/xorg-server-1.17.4)
> 
> Total: 1 package (1 new), Size of downloads: 298 KiB
> Conflict: 1 block (1 unsatisfied)
> 
>  * Error: The above package list contains packages which cannot be
>  * installed at the same time on the same system.

  On the guest, I unmerged xorg-server and tried emerging
xf86-video-modesetting.  The result was that it would've pulled in
xorg-server, which would again have blocked xf86-video-modesetting.
Wierd.

> Have you compiled the guest kernel with CONFIG_DRM_CIRRUS_QEMU?
> 
> If yes, then I guess that you don't need xf86-video-cirrus at all.
> 
> > With "-vga
> > std" X doesn't start up at all.
> 
> You probably need to compile the guest kernel with CONFIG_DRM_BOCHS
> for "-vga std".
>  
> >   Any suggestions for improvement?
> 
> There is also a kernel option for a KMS enabled DRM driver for the 
> VMware SVGA virtual hardware (CONFIG_DRM_VMWGFX). I think that the 
> performance of this driver is better than the performance of the
> cirrus driver.

  As I mentioned earlier vmware, cirrus, and bochs all ticked off in
"make menuconfig".  Now that I have something working, I think I'll make
a copy of the 10-gig guest disk image before any further tweaking that
might render it inoperative again.

>   I think that you also need x11-drivers/xf86-video-vmware installed
> on the guest if you want to use "-vga vmware".

  I've tried that earlier, when things weren't working.  Maybe it'll
work this time.

-- 
Walter Dnes 
I don't run "desktop environments"; I run useful applications