XLibre/xserver
1
1
Fork 0
mirror of https://github.com/X11Libre/xserver.git synced 2026-04-14 17:18:09 +00:00
Code Issues Packages Projects Releases Wiki Activity

modesetting: find the first compatible dri device as default

Browse Source 
This change replaces the default "/dev/dri/card0" by a loop which
searches for the first compatible device.

This change avoids the error below which happens on some ARM boards:
(EE) No devices detected.
(EE)
Fatal server error:
(EE) no screens found(EE)
(EE)

Signed-off-by: Patrick Lerda <patrick9876@free.fr>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1496>
This commit is contained in:
Patrick Lerda
2024-04-19 16:01:12 +02:00
committed by Enrico Weigelt, metux IT consult
parent 091acc86bd
commit 94cee65104
1 changed files with 17 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
hw/xfree86/drivers/modesetting/driver.c
View File

@@ -221,6 +221,7 @@ get_passed_fd(void)
static int
open_hw(const char *dev)
{
char drm_name[] = "/dev/dri/card0";
int fd;
if ((fd = get_passed_fd()) != -1)
@@ -231,8 +232,22 @@ open_hw(const char *dev)
else {
dev = getenv("KMSDEVICE");
if ((NULL == dev) || ((fd = open(dev, O_RDWR | O_CLOEXEC, 0)) == -1)) {
dev = "/dev/dri/card0";
fd = open(dev, O_RDWR | O_CLOEXEC, 0);
int i;
for (i = 0, dev=drm_name; i < 8; i++) {
drm_name[13] = '0' + i;
if ((fd = open(drm_name, O_RDWR | O_CLOEXEC, 0)) >= 0) {
uint64_t check_dumb = 0;
if (drmGetCap(fd, DRM_CAP_DUMB_BUFFER, &check_dumb) >= 0 && check_dumb)
break;
close(fd);
fd = -1;
}
}
}
}
if (fd == -1)