x11-base/xorg-server-1.20.7 always crashes
i can't start x (using slim) but it can't even start when i execute startx manually. it always finishes with (a part of /var/log/Xorg.0.log):
[ 28.159] (EE) Backtrace:
[ 28.159] (EE) 0: /usr/bin/X (xorg_backtrace+0x4d) [0x55af988a6fbd]
[ 28.159] (EE) 1: /usr/bin/X (0x55af98700000+0x1aac45) [0x55af988aac45]
[ 28.159] (EE) 2: /lib64/libpthread.so.0 (0x7f3350e21000+0x13020) [0x7f3350e34020]
[ 28.159] (EE) 3: /lib64/libc.so.6 (gsignal+0x141) [0x7f3350ca0571]
[ 28.159] (EE) 4: /lib64/libc.so.6 (abort+0x127) [0x7f3350c8a55b]
[ 28.159] (EE) 5: /lib64/libc.so.6 (0x7f3350c68000+0x2242f) [0x7f3350c8a42f]
[ 28.159] (EE) 6: /lib64/libc.so.6 (0x7f3350c68000+0x30e32) [0x7f3350c98e32]
[ 28.159] (EE) 7: /usr/bin/X (0x55af98700000+0x744e3) [0x55af987744e3]
[ 28.159] (EE) 8: /usr/lib64/xorg/modules/libfb.so (fbCreatePixmap+0x8a) [0x7f3350abbefa]
[ 28.159] (EE) 9: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f3350601000+0x1389a1) [0x7f33507399a1]
[ 28.159] (EE) 10: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f3350601000+0x134f4e) [0x7f3350735f4e]
[ 28.159] (EE) 11: /usr/bin/X (0x55af98700000+0xd20ac) [0x55af987d20ac]
[ 28.159] (EE) 12: /usr/bin/X (xf86CrtcRotate+0x323) [0x55af987d2a53]
[ 28.159] (EE) 13: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f3350601000+0x133568) [0x7f3350734568]
[ 28.159] (EE) 14: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f3350601000+0x133a6a) [0x7f3350734a6a]
[ 28.159] (EE) 15: /usr/bin/X (xf86CrtcSetModeTransform+0x296) [0x55af987c8c16]
[ 28.159] (EE) 16: /usr/bin/X (xf86SetDesiredModes+0xc6) [0x55af987c9146]
[ 28.159] (EE) 17: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f3350601000+0x1376e0) [0x7f33507386e0]
[ 28.159] (EE) 18: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f3350601000+0x137c60) [0x7f3350738c60]
[ 28.159] (EE) 19: /usr/bin/X (AddScreen+0xd6) [0x55af98757546]
[ 28.159] (EE) 20: /usr/bin/X (InitOutput+0x2b5) [0x55af98796c15]
[ 28.159] (EE) 21: /usr/bin/X (0x55af98700000+0x5b083) [0x55af9875b083]
[ 28.159] (EE) 22: /lib64/libc.so.6 (__libc_start_main+0xeb) [0x7f3350c8be1b]
[ 28.159] (EE) 23: /usr/bin/X (_start+0x2a) [0x55af987451aa]
[ 28.159] (EE)
[ 28.159] (EE)
Fatal server error:
[ 28.159] (EE) Caught signal 6 (Aborted). Server aborting
$ cat /var/log/slim.log
slim: waiting for X server to begin accepting connections
Giving up.
slim: unable to connect to X server
i've filled in more information here: https://bugs.gentoo.org/727976