...
Rebased[1] patch[2] for the modesetting also didn't help,
- xorg-x11-drv-modesetting-0.9.0-4.fc21.x86_64
[1] RFC-modesetting-Add_workaround_for_platform_devices_and_supreme_xserver.patch
--- a/src/driver.c 2014-06-26 10:20:17.000000000 +0200
+++ b/src/driver.c 2014-09-06 06:56:32.862956426 +0200
@@ -136,6 +136,8 @@
int modesettingEntityIndex = -1;
+static Bool supports_non_pci_platform_devs = FALSE;
+
static MODULESETUPPROTO(Setup);
static XF86ModuleVersionInfo VersRec = {
@@ -229,6 +231,28 @@
fd = open_hw(dev);
if (fd != -1) {
int ret = check_outputs(fd);
+ /* if called in platformProbe path, and server does not
+ * supports_non_pci_platform_devs then we need to reject
+ * and fallback to old probe. Otherwise things won't
+ * even work if user has a .conf file, thanks to autoAddGPU
+ * loop.
+ */
+ if (platform_dev && !supports_non_pci_platform_devs) {
+ drmSetVersion sv;
+ char *busid;
+
+ sv.drm_di_major = 1;
+ sv.drm_di_minor = 4;
+ sv.drm_dd_major = -1; /* Don't care */
+ sv.drm_dd_minor = -1; /* Don't care */
+
+ drmSetInterfaceVersion(fd, &sv);
+
+ busid = drmGetBusid(fd);
+ if (busid && !strncmp(busid, "platform:", 9))
+ ret = FALSE;
+ drmFreeBusid(busid);
+ }
close(fd);
return ret;
}
@@ -284,6 +308,10 @@
return Options;
}
+#if 1 /* XORG_VERSION_CURRENT >= XORG_VERSION_NUMERIC(???) */
+# define SERVER_SUPPORTS_NON_PCI_PLATFORM_DEVS 12
+#endif
+
static Bool
ms_driver_func(ScrnInfoPtr scrn, xorgDriverFuncOp op, void *data)
{
@@ -298,6 +326,9 @@
case SUPPORTS_SERVER_FDS:
return TRUE;
#endif
+ case SERVER_SUPPORTS_NON_PCI_PLATFORM_DEVS:
+ supports_non_pci_platform_devs = TRUE;
+ return TRUE;
default:
return FALSE;
}
I wonder whether this has anything to do with DisplayLink USB Display Adapter per se, and are these devices properly supported from day one.
Mr. Keith I see[3] you also have one such device, can you help with advice?
poma
[2] http://lists.x.org/archives/xorg-devel/2014-June/042819.html
[3] http://keithp.com/blogs/hotplug-displaylink/
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