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xorg-x11-server/u_randr-Do-not-crash-if-slave-screen-does-not-have-pro.patch
Stefan Dirsch 540300e204 - Update to version 21.1.0
* The meson support is now fully mature. While autotools support
    will still be kept for this release series, it will be dropped
    afterwards.
  * Glamor support for Xvfb.
  * Variable refresh rate support in the modesetting driver.
  * XInput 2.4 support which adds touchpad gestures.
  * DMX DDX has been removed.
  * X server now correctly reports display DPI in more cases. This
    may affect rendering of client applications that have their own
    workarounds for hi-DPI screens.
  * A large number of small features and various bug fixes.
- updated xorg-server-provides
- supersedes patches
  * U_Fix-segfault-on-probing-a-non-PCI-platform-device-on.patch
  * U_dix-window-Use-ConfigureWindow-instead-of-MoveWindow.patch
  * U_glamor_egl-Reject-OpenGL-2.1-early-on.patch
  * u_render-Cast-color-masks-to-unsigned-long-before-shifting-them.patch
- refreshed patches
  * N_fix-dpi-values.diff
  * N_zap_warning_xserver.diff
  * u_modesetting-Fix-dirty-updates-for-sw-rotation.patch
  * u_randr-Do-not-crash-if-slave-screen-does-not-have-pro.patch
  * u_vesa-Add-VBEDPMSGetCapabilities-VBEDPMSGet.patch
- disabled n_xserver-optimus-autoconfig-hack.patch, which I believe is 
  superseded by:
  commit 078277e4d92f05a90c4715d61b89b9d9d38d68ea
  Author: Dave Airlie <airlied@redhat.com>
  Date:   Fri Aug 17 09:49:24 2012 +1000
    xf86: autobind GPUs to the screen
- added pkgconfig(libxcvt)
- cvt binary moved to libxcvt0 package

OBS-URL: https://build.opensuse.org/package/show/X11:XOrg/xorg-x11-server?expand=0&rev=804
2021-10-27 16:05:03 +00:00

39 lines
1.8 KiB
Diff

Patch-mainline: To be upstreamed
Author: Michal Srb <msrb@suse.com>
Subject: randr: Do not crash if slave screen does not have provider.
References: bnc#1068961
All GPU screens are attached as unbound GPUs to master, even if they have no
capabilities or the provider field is null. Handle that case in RRTellChanged.
---
This prevents crash in setups with for example two qxl devices, or fbdev and
qxl device. I am not sure if it is a proper fix and not just papering over a
bug somewhere else, but there are more places that test whether the provider
is set, so maybe it is correct way.
I would think that if a slave screen does not have provider, there is no reason
for it to become an unbound GPU in master's slave_list. Similarly if master has
no provider, then having anything in slave_list is useless. But it seems the
AttachUnboundGPU and the rest of the code handling screen to GPU screen
attachments does not know about randr's privates, so it can not check whether
provider is there.
randr/randr.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
Index: xorg-server-21.1.0/randr/randr.c
===================================================================
--- xorg-server-21.1.0.orig/randr/randr.c
+++ xorg-server-21.1.0/randr/randr.c
@@ -651,7 +651,9 @@ RRTellChanged(ScreenPtr pScreen)
xorg_list_for_each_entry(iter, &primary->secondary_list, secondary_head) {
pSecondaryScrPriv = rrGetScrPriv(iter);
- pSecondaryScrPriv->provider->changed = FALSE;
+ if (pSecondaryScrPriv->provider) {
+ pSecondaryScrPriv->provider->changed = FALSE;
+ }
if (iter->is_output_secondary) {
for (i = 0; i < pSecondaryScrPriv->numOutputs; i++)
pSecondaryScrPriv->outputs[i]->changed = FALSE;