I picked up a cheap LED flatscreen last month,
and plugged it onto the VGA of my radeon.
It has a bad EDID, as reported by both 3.13-rc3+ and FC-19-current,recent,etc.
The bad EDID apparently caused semi-random failures to pick a good resolution,
and affected not only the new screen, but also the ACER, connected to the DVI-D connector.
I recently added to the boot:
drm_kms_helper.edid_firmware=VGA-1:edid/1920x1080.bin
the 1st/only boot afterwards went perfect. So thats apparently solved.
Q: in the following, I expected to read 3 different EDID's from the 3 monitors.
I appear to always read the ACER X241W screen.
$ for p in /sys/class/drm/card0*/edid; do echo; echo $p; monitor-edid $p ; done
/sys/class/drm/card0-DVI-D-1/edid
Name: X241W
EISA ID: ACRad99
EDID version: 1.3
EDID extension blocks: 0
Screen size: 51.8 cm x 32.4 cm (24.05 inches, aspect ratio 16/10 = 1.60)
Gamma: 2.2
Digital signal
Max video bandwidth: 170 MHz
HorizSync 31-81
VertRefresh 56-75
# Monitor preferred modeline (60.0 Hz vsync, 74.0 kHz hsync, ratio 16/10, 94 dpi)
ModeLine "1920x1200" 154 1920 1968 2000 2080 1200 1203 1209 1235 +hsync +vsync
/sys/class/drm/card0-HDMI-A-1/edid
Name: X241W
EISA ID: ACRad99
EDID version: 1.3
EDID extension blocks: 0
Screen size: 51.8 cm x 32.4 cm (24.05 inches, aspect ratio 16/10 = 1.60)
Gamma: 2.2
Digital signal
Max video bandwidth: 170 MHz
HorizSync 31-81
VertRefresh 56-75
# Monitor preferred modeline (60.0 Hz vsync, 74.0 kHz hsync, ratio 16/10, 94 dpi)
ModeLine "1920x1200" 154 1920 1968 2000 2080 1200 1203 1209 1235 +hsync +vsync
/sys/class/drm/card0-VGA-1/edid
Name: X241W
EISA ID: ACRad99
EDID version: 1.3
EDID extension blocks: 0
Screen size: 51.8 cm x 32.4 cm (24.05 inches, aspect ratio 16/10 = 1.60)
Gamma: 2.2
Digital signal
Max video bandwidth: 170 MHz
HorizSync 31-81
VertRefresh 56-75
# Monitor preferred modeline (60.0 Hz vsync, 74.0 kHz hsync, ratio 16/10, 94 dpi)
ModeLine "1920x1200" 154 1920 1968 2000 2080 1200 1203 1209 1235 +hsync +vsync
hmm,
Ive pretty much convinced myself that this is bug-report-worthy.
comments, suggestions ?
_______________________________________________ dri-users mailing list dri-users@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-users
- Prev by Date: munmap_chunk(): invalid pointer in libgl1-mesa-dri_9.2.1-1
- Next by Date: xcb_dri2_connect_reply returns 0x0
- Previous by thread: munmap_chunk(): invalid pointer in libgl1-mesa-dri_9.2.1-1
- Next by thread: xcb_dri2_connect_reply returns 0x0
- Index(es):
 |