Arch Linux

Le Limule

Member

Registered: 2011-08-19

Posts: 11

(xrandr) scale option freeze screen

hello,

i have a display pb with the xrandr scale option.
in some sessions, when i use it there is no more display: there is a fixed image, only the mouse cursor can move on the screen. this cursor can detect windows borders and other interactive elements (ie: screen elements who should appear but who stay completely masked by the fixed image).
So it's more or less like a blank screen, but i can continue to do actions in a blind way.
(the pb exists also for the transform and rotate options)

example:

[guigui@ctkarch ~]$ xrandr --output VGA-1 --scale 0.9x0.9 --verbose

(light zoom)
the screen become black during 1 second (it's ok) then it displays a fixed image.

if i type in a blind way: xrandr --output VGA-1 --scale 1x1 --verbose
=> all come back to a correct display.

[guigui@ctkarch ~]$ xrandr --output VGA-1 --scale 0.9x0.9 --verbose
crtc 0: disable
screen 0: 1296x810 335x209 mm 98.11dpi
crtc 0: 1440x900 59.9 +0+0 "VGA-1"
[guigui@ctkarch ~]$ xrandr --output VGA-1 --scale 1x1 --verbose
screen 0: 1440x900 371x232 mm 98.44dpi
crtc 0: 1440x900 59.9 +0+0 "VGA-1"
[guigui@ctkarch ~]$ 

i don't see error message. including the logs.

i never see a change during a session: it works (or not) since the begining of a session. it seems a random pb.

the resolution changes always works. example:

[guigui@ctkarch ~]$ xrandr --output VGA-1 --mode 1280x1024 --verbose
crtc 0: disable
screen 0: 1280x1024 338x270 mm  96.05dpi
crtc 0:    1280x1024   75.0 +0+0 "VGA-1"
[guigui@ctkarch ~]$ 

my graphic card:

[guigui@ctkarch ~]$ xsu lspci -vvv -s 03:00.0
Mot de passe :
03:00.0 VGA compatible controller: NVIDIA Corporation ION VGA (rev b1) (prog-if 00 [VGA controller])
Subsystem: ZOTAC International (MCO) Ltd. Device a108
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 22
Region 0: Memory at fb000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at e0000000 (64-bit, prefetchable) [size=256M]
Region 3: Memory at f8000000 (64-bit, prefetchable) [size=32M]
Region 5: I/O ports at ec00 [size=128]
Expansion ROM at fafe0000 [disabled] [size=128K]
Capabilities: [60] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Kernel driver in use: nouveau

[guigui@ctkarch ~]$ 

i use xf86-video-nouveau 1.0.1-1

screen: LG FLATRON W1952TE (1440x900)

[guigui@ctkarch ~]$ uname -a
Linux ctkarch 3.4.7-1-ARCH #1 SMP PREEMPT Sun Jul 29 20:05:01 UTC 2012 i686 GNU/Linux
[guigui@ctkarch ~]$ 

i tried with nvidia (302.17-4) in place of nouveau: it's slow but it seems to work (i only test 2 or 3 sessions).

i downgraded my system to 2012-06-17 ARM (to have xf86-video-nouveau 0.0.16_git20120615-1): no effect on my pb.

i tried the xorg-server patch for cursor scaling pb:
https://bugs.freedesktop.org/show_bug.cgi?id=39949#c20
=> the patch works for its pb, but there is no effect on my pb.

what can i do?

thanks in advance!