XRANDR video modes are not used although it is configured.

[SDLBugzilla]

This bug report was migrated from our old Bugzilla tracker.

These attachments are available in the static archive:

• patch against revision 4428 to obey the configured X11 XRANDR video driver support. (xrandr.patch, text/plain, 2009-02-17 01:00:51 +0000, 372 bytes)
• lshw output for Ubuntu 11.10 x86, GeForce 8800 GT (lshw.log, text/plain, 2012-04-24 07:28:19 +0000, 22327 bytes)

Reported in version: HG 2.0
Reported for operating system, platform: Linux, x86

Comments on the original bug report:

On 2009-02-17 01:00:51 +0000, Sami Näätänen wrote:

Created attachment 298
patch against revision 4428 to obey the configured X11 XRANDR video driver support.

Found out that
src/video/x11/SDL_x11modes.c undefs the
SDL_VIDEO_DRIVER_X11_XRANDR value and thus disables the XRANDR video modes.

This prevents any SDL program from changing resolution.

FIX: Remove the undef -> make, make install.
TEST: Make the tests and run them with fullscreen and with different geometry settings and everything works.

The VIDMODE and XINERAMA extensions are similarly also disabled, but I didn't test those.

Test case with X11MODES_DEBUG enabled:

sami@who ~/prog/cvs/SDL/test $ ./testsprite2 --geometry 1280x960 --fullscreen
XRANDR: XRRQueryVersion: V1.2
XRANDR: mode = 0[0], w = 1600, h = 1200, rate = 50
XRANDR: mode = 0[1], w = 1600, h = 1200, rate = 51
XRANDR: mode = 0[2], w = 1600, h = 1200, rate = 56
XRANDR: mode = 0[3], w = 1600, h = 1200, rate = 57
XRANDR: mode = 0[4], w = 1600, h = 1200, rate = 58
XRANDR: mode = 1[0], w = 1024, h = 768, rate = 52
XRANDR: mode = 1[1], w = 1024, h = 768, rate = 67
XRANDR: mode = 1[2], w = 1024, h = 768, rate = 68
XRANDR: mode = 1[3], w = 1024, h = 768, rate = 69
XRANDR: mode = 1[4], w = 1024, h = 768, rate = 70
XRANDR: mode = 2[0], w = 800, h = 600, rate = 53
XRANDR: mode = 2[1], w = 800, h = 600, rate = 72
XRANDR: mode = 2[2], w = 800, h = 600, rate = 73
XRANDR: mode = 2[3], w = 800, h = 600, rate = 74
XRANDR: mode = 2[4], w = 800, h = 600, rate = 75
XRANDR: mode = 2[5], w = 800, h = 600, rate = 76
XRANDR: mode = 3[0], w = 640, h = 480, rate = 54
XRANDR: mode = 3[1], w = 640, h = 480, rate = 80
XRANDR: mode = 3[2], w = 640, h = 480, rate = 81
XRANDR: mode = 3[3], w = 640, h = 480, rate = 82
XRANDR: mode = 4[0], w = 320, h = 240, rate = 55
XRANDR: mode = 4[1], w = 320, h = 240, rate = 89
XRANDR: mode = 5[0], w = 1400, h = 1050, rate = 59
XRANDR: mode = 5[1], w = 1400, h = 1050, rate = 60
XRANDR: mode = 6[0], w = 1280, h = 1024, rate = 61
XRANDR: mode = 6[1], w = 1280, h = 1024, rate = 62
XRANDR: mode = 6[2], w = 1280, h = 1024, rate = 63
XRANDR: mode = 7[0], w = 1280, h = 960, rate = 64
XRANDR: mode = 7[1], w = 1280, h = 960, rate = 65
XRANDR: mode = 8[0], w = 1152, h = 864, rate = 66
XRANDR: mode = 9[0], w = 832, h = 624, rate = 71
XRANDR: mode = 10[0], w = 720, h = 400, rate = 77
XRANDR: mode = 11[0], w = 700, h = 525, rate = 78
XRANDR: mode = 11[1], w = 700, h = 525, rate = 79
XRANDR: mode = 12[0], w = 640, h = 400, rate = 83
XRANDR: mode = 13[0], w = 640, h = 350, rate = 84
XRANDR: mode = 14[0], w = 512, h = 384, rate = 85
XRANDR: mode = 14[1], w = 512, h = 384, rate = 86
XRANDR: mode = 14[2], w = 512, h = 384, rate = 87
XRANDR: mode = 15[0], w = 400, h = 300, rate = 88
XRANDR: mode = 16[0], w = 320, h = 175, rate = 90
XRandR is enabled
XRANDR: get_real_resolution: w = 1600, h = 1200, rate = 58
XRANDR: set_best_resolution(): w = 1280, h = 960
2424.31 frames per second
XRANDR: get_real_resolution: w = 1280, h = 960, rate = 58
XRANDR: set_best_resolution(): w = 1600, h = 1200

On 2009-10-10 12:24:29 +0000, Sam Lantinga wrote:

I'll re-enable XRANDR modes when I re-implement fullscreen support.

Thanks!

On 2009-10-10 12:42:03 +0000, Sam Lantinga wrote:

*** Bug 693 has been marked as a duplicate of this bug. ***

On 2010-07-14 07:28:10 +0000, Sam Lantinga wrote:

Done! :)

On 2012-04-24 07:28:19 +0000, Martin Kallman wrote:

Created attachment 849
lshw output for Ubuntu 11.10 x86, GeForce 8800 GT

On 2012-04-24 07:31:34 +0000, Martin Kallman wrote:

Issue appears to have resurfaced as of 6305.

On Ubuntu 11.10 x86, with NVIDIA's proprietary driver (version 173) and GeForce 8800 GT, SDL only reports one mode (the current desktop mode) as available when using SDL_GetNumDisplayModes / SDL_GetDisplayMode.

This seems to be driver-specific as the same setup works correctly under VMWare with the VMWare SVGA II adapter.

lshw output attached.

On 2012-04-24 07:35:33 +0000, Martin Kallman wrote:

Also note that the 'nvidia' driver is not found by SDL.

Issue appears to have resurfaced as of 6305.

On Ubuntu 11.10 x86, with NVIDIA's proprietary driver (version 173) and GeForce
8800 GT, SDL only reports one mode (the current desktop mode) as available when
using SDL_GetNumDisplayModes / SDL_GetDisplayMode.

This seems to be driver-specific as the same setup works correctly under VMWare
with the VMWare SVGA II adapter.

lshw output attached.

On 2012-10-03 11:29:09 +0000, Sam Lantinga wrote:

Please enter a separate bug for the NVidia issue. There really isn't anything SDL can do if the X server doesn't pick up the nvidia driver and advertise XRandR support.