[Qemu-devel] [Bug 1703795] [NEW] Unable to release mouse in SDL2 mode

[Qemu-devel] [Bug 1703795] [NEW] Unable to release mouse in SDL2 mode

[Ruslan]

Public bug reported:

Starting with commit 8f4ea9cd0b770dbe496d9d24f0ef8813fdbfe0d0 "sdl:
prefer sdl2 over sdl1", I can no longer release mouse pointer grab
unless I use --with-sdlabi=1.2 configure option.

This easily reproduces in e.g. guest Kubuntu, when I let it start Xorg
and then click into the QEMU window. After this the mouse is trapped and
no matter how I combine Ctrl+Alt and motion of the cursor, the pointer
never goes out from the window. When at the border, QEMU window switches
from "Press Ctrl+Alt to exit grab" to "QEMU", i.e. it thinks that it has
released the grab. But it hasn't really, so I have to go to VT1 and do
"pkill qemu" from there to get my pointer back.

** Affects: qemu
     Importance: Undecided
         Status: New

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Title:
  Unable to release mouse in SDL2 mode

Status in QEMU:
  New

Bug description:
  Starting with commit 8f4ea9cd0b770dbe496d9d24f0ef8813fdbfe0d0 "sdl:
  prefer sdl2 over sdl1", I can no longer release mouse pointer grab
  unless I use --with-sdlabi=1.2 configure option.

  This easily reproduces in e.g. guest Kubuntu, when I let it start Xorg
  and then click into the QEMU window. After this the mouse is trapped
  and no matter how I combine Ctrl+Alt and motion of the cursor, the
  pointer never goes out from the window. When at the border, QEMU
  window switches from "Press Ctrl+Alt to exit grab" to "QEMU", i.e. it
  thinks that it has released the grab. But it hasn't really, so I have
  to go to VT1 and do "pkill qemu" from there to get my pointer back.

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[Qemu-devel] [Bug 1703795] Re: Unable to release mouse in SDL2 mode

[Thomas Huth]

Which version of SDL2 are you using? Could you please try to reproduce
it with the latest version to see whether the problem has been fixed
there?

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Title:
  Unable to release mouse in SDL2 mode

Status in QEMU:
  New

Bug description:
  Starting with commit 8f4ea9cd0b770dbe496d9d24f0ef8813fdbfe0d0 "sdl:
  prefer sdl2 over sdl1", I can no longer release mouse pointer grab
  unless I use --with-sdlabi=1.2 configure option.

  This easily reproduces in e.g. guest Kubuntu, when I let it start Xorg
  and then click into the QEMU window. After this the mouse is trapped
  and no matter how I combine Ctrl+Alt and motion of the cursor, the
  pointer never goes out from the window. When at the border, QEMU
  window switches from "Press Ctrl+Alt to exit grab" to "QEMU", i.e. it
  thinks that it has released the grab. But it hasn't really, so I have
  to go to VT1 and do "pkill qemu" from there to get my pointer back.

To manage notifications about this bug go to:
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[Qemu-devel] [Bug 1703795] Re: Unable to release mouse in SDL2 mode

[Ruslan]

I'm using SDL2-2.0.5, which I believe is the latest already.

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Title:
  Unable to release mouse in SDL2 mode

Status in QEMU:
  New

Bug description:
  Starting with commit 8f4ea9cd0b770dbe496d9d24f0ef8813fdbfe0d0 "sdl:
  prefer sdl2 over sdl1", I can no longer release mouse pointer grab
  unless I use --with-sdlabi=1.2 configure option.

  This easily reproduces in e.g. guest Kubuntu, when I let it start Xorg
  and then click into the QEMU window. After this the mouse is trapped
  and no matter how I combine Ctrl+Alt and motion of the cursor, the
  pointer never goes out from the window. When at the border, QEMU
  window switches from "Press Ctrl+Alt to exit grab" to "QEMU", i.e. it
  thinks that it has released the grab. But it hasn't really, so I have
  to go to VT1 and do "pkill qemu" from there to get my pointer back.

To manage notifications about this bug go to:
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[Qemu-devel] [Bug 1703795] Re: Unable to release mouse in SDL2 mode

[jmicco]

I am seeing this on my system as well - the exact same symptoms.  Has
anyone investigated this problem?

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Title:
  Unable to release mouse in SDL2 mode

Status in QEMU:
  New

Bug description:
  Starting with commit 8f4ea9cd0b770dbe496d9d24f0ef8813fdbfe0d0 "sdl:
  prefer sdl2 over sdl1", I can no longer release mouse pointer grab
  unless I use --with-sdlabi=1.2 configure option.

  This easily reproduces in e.g. guest Kubuntu, when I let it start Xorg
  and then click into the QEMU window. After this the mouse is trapped
  and no matter how I combine Ctrl+Alt and motion of the cursor, the
  pointer never goes out from the window. When at the border, QEMU
  window switches from "Press Ctrl+Alt to exit grab" to "QEMU", i.e. it
  thinks that it has released the grab. But it hasn't really, so I have
  to go to VT1 and do "pkill qemu" from there to get my pointer back.

To manage notifications about this bug go to:
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[Qemu-devel] [Bug 1703795] Re: Unable to release mouse in SDL2 mode

[BALATON Zoltan]

I'm also seeing this problem with -vga vmware in case that matters.

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Title:
  Unable to release mouse in SDL2 mode

Status in QEMU:
  New

Bug description:
  Starting with commit 8f4ea9cd0b770dbe496d9d24f0ef8813fdbfe0d0 "sdl:
  prefer sdl2 over sdl1", I can no longer release mouse pointer grab
  unless I use --with-sdlabi=1.2 configure option.

  This easily reproduces in e.g. guest Kubuntu, when I let it start Xorg
  and then click into the QEMU window. After this the mouse is trapped
  and no matter how I combine Ctrl+Alt and motion of the cursor, the
  pointer never goes out from the window. When at the border, QEMU
  window switches from "Press Ctrl+Alt to exit grab" to "QEMU", i.e. it
  thinks that it has released the grab. But it hasn't really, so I have
  to go to VT1 and do "pkill qemu" from there to get my pointer back.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1703795/+subscriptions

[Qemu-devel] [Bug 1703795] Re: Unable to release mouse in SDL2 mode

[BALATON Zoltan]

Additionally 2ec78706d188df7d3dab43d07b19b05ef7800a44 also broke
keyboard with SDL1 so that e.g. in a Windows password prompt backspace
and enter just inserts chars instead of doing actions so now the
workaround to avoid this bug (--with-sdlabi=1.2) is also unusable.

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Title:
  Unable to release mouse in SDL2 mode

Status in QEMU:
  New

Bug description:
  Starting with commit 8f4ea9cd0b770dbe496d9d24f0ef8813fdbfe0d0 "sdl:
  prefer sdl2 over sdl1", I can no longer release mouse pointer grab
  unless I use --with-sdlabi=1.2 configure option.

  This easily reproduces in e.g. guest Kubuntu, when I let it start Xorg
  and then click into the QEMU window. After this the mouse is trapped
  and no matter how I combine Ctrl+Alt and motion of the cursor, the
  pointer never goes out from the window. When at the border, QEMU
  window switches from "Press Ctrl+Alt to exit grab" to "QEMU", i.e. it
  thinks that it has released the grab. But it hasn't really, so I have
  to go to VT1 and do "pkill qemu" from there to get my pointer back.

To manage notifications about this bug go to:
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[Qemu-devel] [Bug 1703795] Re: Unable to release mouse in SDL2 mode

[Daniel Berrange]

Can you file a separate bug for the SDL1  backspace problem - it was not
intended to cause problems like that.

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Title:
  Unable to release mouse in SDL2 mode

Status in QEMU:
  New

Bug description:
  Starting with commit 8f4ea9cd0b770dbe496d9d24f0ef8813fdbfe0d0 "sdl:
  prefer sdl2 over sdl1", I can no longer release mouse pointer grab
  unless I use --with-sdlabi=1.2 configure option.

  This easily reproduces in e.g. guest Kubuntu, when I let it start Xorg
  and then click into the QEMU window. After this the mouse is trapped
  and no matter how I combine Ctrl+Alt and motion of the cursor, the
  pointer never goes out from the window. When at the border, QEMU
  window switches from "Press Ctrl+Alt to exit grab" to "QEMU", i.e. it
  thinks that it has released the grab. But it hasn't really, so I have
  to go to VT1 and do "pkill qemu" from there to get my pointer back.

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Re: [Qemu-devel] [Bug 1703795] Re: Unable to release mouse in SDL2 mode

[BALATON Zoltan]

On Thu, 1 Feb 2018, Daniel Berrange wrote:
> Can you file a separate bug for the SDL1  backspace problem - it was not
> intended to cause problems like that.

Unless you want it tracked in a bug I'm happy with a fix submitted to the 
list eventually without being separately tracked on launchpad. I would've 
reported this on the mailing list normally but since this is also relevant 
here due to SDL2 also not uasable beacause of this bug I've commented 
here so people affected by this know about both problems.

[Qemu-devel] [Bug 1703795] Re: Unable to release mouse in SDL2 mode

[Gerd Hoffmann]

workaround: don't click into the guest window before the tablet driver
loads.

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Title:
  Unable to release mouse in SDL2 mode

Status in QEMU:
  New

Bug description:
  Starting with commit 8f4ea9cd0b770dbe496d9d24f0ef8813fdbfe0d0 "sdl:
  prefer sdl2 over sdl1", I can no longer release mouse pointer grab
  unless I use --with-sdlabi=1.2 configure option.

  This easily reproduces in e.g. guest Kubuntu, when I let it start Xorg
  and then click into the QEMU window. After this the mouse is trapped
  and no matter how I combine Ctrl+Alt and motion of the cursor, the
  pointer never goes out from the window. When at the border, QEMU
  window switches from "Press Ctrl+Alt to exit grab" to "QEMU", i.e. it
  thinks that it has released the grab. But it hasn't really, so I have
  to go to VT1 and do "pkill qemu" from there to get my pointer back.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1703795/+subscriptions

Re: [Qemu-devel] [Bug 1703795] Re: Unable to release mouse in SDL2 mode

[BALATON Zoltan]

The patch works for me too. Thanks.

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Title:
  Unable to release mouse in SDL2 mode

Status in QEMU:
  New

Bug description:
  Starting with commit 8f4ea9cd0b770dbe496d9d24f0ef8813fdbfe0d0 "sdl:
  prefer sdl2 over sdl1", I can no longer release mouse pointer grab
  unless I use --with-sdlabi=1.2 configure option.

  This easily reproduces in e.g. guest Kubuntu, when I let it start Xorg
  and then click into the QEMU window. After this the mouse is trapped
  and no matter how I combine Ctrl+Alt and motion of the cursor, the
  pointer never goes out from the window. When at the border, QEMU
  window switches from "Press Ctrl+Alt to exit grab" to "QEMU", i.e. it
  thinks that it has released the grab. But it hasn't really, so I have
  to go to VT1 and do "pkill qemu" from there to get my pointer back.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1703795/+subscriptions

[Qemu-devel] [Bug 1703795] [PATCH] sdl2: fix mouse grab

[Gerd Hoffmann]

When qemu mouse mode changes from relative to absolute
we must turn off sdl relative mouse mode too.

Fixes: https://bugs.launchpad.net/qemu/+bug/1703795
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 ui/sdl2.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ui/sdl2.c b/ui/sdl2.c
index 812c315891..858e04d7c0 100644
--- a/ui/sdl2.c
+++ b/ui/sdl2.c
@@ -249,6 +249,7 @@ static void sdl_mouse_mode_change(Notifier *notify, void *data)
     if (qemu_input_is_absolute()) {
         if (!absolute_enabled) {
             absolute_enabled = 1;
+            SDL_SetRelativeMouseMode(SDL_FALSE);
             absolute_mouse_grab(&sdl2_console[0]);
         }
     } else if (absolute_enabled) {
-- 
2.9.3

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Title:
  Unable to release mouse in SDL2 mode

Status in QEMU:
  New

Bug description:
  Starting with commit 8f4ea9cd0b770dbe496d9d24f0ef8813fdbfe0d0 "sdl:
  prefer sdl2 over sdl1", I can no longer release mouse pointer grab
  unless I use --with-sdlabi=1.2 configure option.

  This easily reproduces in e.g. guest Kubuntu, when I let it start Xorg
  and then click into the QEMU window. After this the mouse is trapped
  and no matter how I combine Ctrl+Alt and motion of the cursor, the
  pointer never goes out from the window. When at the border, QEMU
  window switches from "Press Ctrl+Alt to exit grab" to "QEMU", i.e. it
  thinks that it has released the grab. But it hasn't really, so I have
  to go to VT1 and do "pkill qemu" from there to get my pointer back.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1703795/+subscriptions

[Qemu-devel] [Bug 1703795] Re: Unable to release mouse in SDL2 mode

[Ruslan]

I can confirm that the patch from comment #9 appears to fix the original
problem.

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Title:
  Unable to release mouse in SDL2 mode

Status in QEMU:
  New

Bug description:
  Starting with commit 8f4ea9cd0b770dbe496d9d24f0ef8813fdbfe0d0 "sdl:
  prefer sdl2 over sdl1", I can no longer release mouse pointer grab
  unless I use --with-sdlabi=1.2 configure option.

  This easily reproduces in e.g. guest Kubuntu, when I let it start Xorg
  and then click into the QEMU window. After this the mouse is trapped
  and no matter how I combine Ctrl+Alt and motion of the cursor, the
  pointer never goes out from the window. When at the border, QEMU
  window switches from "Press Ctrl+Alt to exit grab" to "QEMU", i.e. it
  thinks that it has released the grab. But it hasn't really, so I have
  to go to VT1 and do "pkill qemu" from there to get my pointer back.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1703795/+subscriptions

[Qemu-devel] [Bug 1703795] Re: Unable to release mouse in SDL2 mode

[Thomas Huth]

Fix has been included here:
https://git.qemu.org/?p=qemu.git;a=commitdiff;h=8dfa3061ce56d871dc9df

** Changed in: qemu
       Status: New => Fix Released

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Title:
  Unable to release mouse in SDL2 mode

Status in QEMU:
  Fix Released

Bug description:
  Starting with commit 8f4ea9cd0b770dbe496d9d24f0ef8813fdbfe0d0 "sdl:
  prefer sdl2 over sdl1", I can no longer release mouse pointer grab
  unless I use --with-sdlabi=1.2 configure option.

  This easily reproduces in e.g. guest Kubuntu, when I let it start Xorg
  and then click into the QEMU window. After this the mouse is trapped
  and no matter how I combine Ctrl+Alt and motion of the cursor, the
  pointer never goes out from the window. When at the border, QEMU
  window switches from "Press Ctrl+Alt to exit grab" to "QEMU", i.e. it
  thinks that it has released the grab. But it hasn't really, so I have
  to go to VT1 and do "pkill qemu" from there to get my pointer back.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1703795/+subscriptions